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  • ports only available from the outside network

    - by ChrisJ
    This is a counter-intuitive problem for me. I have a new Win 2003 server on a static IP address w.x.y.z. Tomcat 7, PostgreSQL 9.1, and Subversion are installed. All of it appears to be working fine from the server itself. We can also access the Tomcat manager, web applications, and run "svn ls svn://w.x.y.z/" from outside our network. However, when I try from another machine in the office, phpPgAdmin and svn cannot establish connections with the server. http://w.x.y.z:5432/phppgadmin cannot connect. The svn command from above returns: svn: E730061: Unable to connect to a repository at URL 'svn://w.x.y.z/' svn: E730061: Can't connect to host 'w.x.y.z': No connection could be made because the target machine actively refused it. Tomcat manager and the other web apps we have deployed work fine. Netstat -a from the server shows this: Proto Local Address Foreign Address State TCP SERVERNAME:3690 SERVERNAME:0 LISTENING TCP SERVERNAME:5432 SERVERNAME:0 LISTENING Windows Firewall was off, but just in case I also tried to enable it and open ports 3690 (svn) and 5432 (postgres). No change. I don't have access to the router/switch because it just doesn't work that way in Port-au-Prince and our sysadmin is on R&R. Is there anything that might be causing the problem from the server side?

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  • Laptop kicks other users off the wifi when it connects, then gets disconnected itself

    - by Devon
    I've got an Acer Aspire One running Linux. When I connect to my building's wifi, everything seems fine for a short period of time (I can google a few things or start downloading an Apt package), but then other devices on the network lose their IP addresses. Shortly after that, my computer also gets disconected. My computer is set to use DHCP. What causes this, and do you know how it could be fixed? Am I causing a broadcast storm?

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  • "Safe" personal router use on apartment-wide network

    - by noisetank
    I recently moved into an apartment with internet included in my rent. This was a boon at first, but now I'm feeling limited. To get devices connected (wired or wireless), I have to whitelist the MAC addresses on mycampusnet.com. This is annoying (considering I'm well over the 10 device limit including my roommate's stuff), but what's really driving me mad is that I don't seem to have any semblance of a "local" network. I've relied heavily on static IPs and port forwarding in the past (accessing NAS and remote desktop) and (as far as I can understand), that functionality is nonexistent without my router set up. Also, as my wired and wireless devices don't always seem to make it onto the same subnet, I'm unable to use any of my iDevices with my Apple TV (I can, however, mirror to no less than four strangers' Apple TVs at any moment, which is a whole other level of discomforting). I've talked to the head of the apartment complex and she told me that they personally don't have any issue with my using a router, but the provider (CampusConnect) does not currently allow it. Apparently, enough people have put in complaints/requests about the restriction (the apartments are for graduate students and University staff, many of which need to set up things like VPNs for work reasons) to open up some sort of ticket to get the functionality in place, but all the calls I've made to get status updates have been a waste of time. My question is: If I plugged my router into the apartment network, what would happen? I've been told already that personal routers would "interfere with the wireless" and that they would shut my port down if I used one, but is that a legitimate thing or just something made up that sounds real to keep the average Joe from pushing it further? I'm guessing there's some way of configuring my router to keep it from disrupting the rest of the network, but it's not something they want to tell me for obvious reasons. Am I right? And if so, what are the chances that they'd notice the difference in traffic or whatever and shut off my port?

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  • Wireless connection drops when wired computer starts a game.

    - by Skadlig
    Starting this week I have had a strange problem on my network. Some background of my setup: Internet is provided by a adsl-modem. A D-link Dir-600 router is hooked up to to adsl-modem. My computer is hooked up to the router using a cat-5 cable. My wife's computer is hooked up using a wireless usb dongle, TP-Link TL-WN821N. Both computers use windows 7 64-bit home premium. Up until this week everything was normal, we could for instance play Dungeons & Dragons Online together without any network issues. Now every time I start DDO or any other network game, for instance L4D, the whole wireless network drops. I have confirmed that it's not just her computer using an Samsung Galaxy Spica android phone. Shutting down the game on my end restores the wireless connection automagicly. My wife can start DDO without the net dropping but if I plug in a wireless network card in my computer and start up the game the connection drops. So it seems like something my computer, and my computer only, does when starting a game makes the wireless connection write a sad note and kill it self but for the life of me I can't figure out what that might be. I could hook her computer up using cat-5 but I would prefer not to do that. Does anyone have any suggestions as to what the problem might be, what I can do to fix it or what I should do to get more data regarding what is happening?

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  • Get Internal IP Address From DHCP Hostname

    - by ell
    I would like to try and get an internal ip address of one of the computers on my network. The reason for this is I have a little home server box downstairs but every time I want to SSH into it I have to open my router configuration and go on the DHCP client table and look at the IP address. For example I would like to be able to go ssh ell-sever instead of ssh 192.168.1.105 or whatever it happens to be. My network configuration is like so: Router downstairs that is connected to the Internet and is running a DHCP server My server computer (ell-server) is a headless pc connected to the router via ethernet cable. Running Ubuntu 11.04 Server Edition My laptop upstairs (ell-laptop) that is running Ubuntu 11.10 Desktop Edition connected wirelessly Other (irrelevant) computers - 2 x Windows XP, 1 x Xubuntu - all connected with cables. (It seemed to me the method of connection isn't useful information but I put it in anyway - just in case. If I have missed any information please tell me) Do I have to run a DNS server on one of my computers? If so which one? And does that mean I will have to run a DDNS client on each computer? Thanks in advance, ell.

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  • How to take advantage of two Internet connections (WiFi / Wired) ?

    - by Madhur Ahuja
    I have two separate internet connections, one through WiFi and other Wired. However, generally I have observed that Windows try to use only one ( mostly faster one/ Or Wired by preference - I am not sure). Is there a way I can take advantage of having both ? For example I can have my web browser use the wired one and my torrent software use the Wifi One. PS: This question may be regarded as duplicate but reason I am posting it again is I have not found any concrete answer for it. Two internet Connections, one LAN - how to share?

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  • Why is my Wifi connection slower than ethernet even though bandwidth should saturated?

    - by supercheetah
    I'm wondering why it is that my wireless connection is slower than my wired connection for things going to the outside world (so, not files being transferred within the network), which is should be faster than the outside connection, which, I would think, would mean that downloading something like an ISO or other large file from the Internet should be the same either way since that should saturate the connection anyway. Does it have something to do with the encryption (WPA)? Could it have something to do with MTU since the MTU for ethernet can be in the range of 1500 to 9000 bytes, and 2304 bytes for 802.11? Do wireless packets have to be buffered, whereas this wouldn't be an issue with ethernet? What's the math behind the difference?

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  • Setting up VM server access via host MacBook Pro's WiFi hotspot

    - by user7609
    I have a virtual machine (VM) hosted on a MacBook Pro (MBP). There is a server installed on the VM. I'm trying to make this server accessible via MBP's WiFi hotspot so I can see it from my iPhone when connected to the hotspot. The VM is Parallels (latest version) and its OS is Win7 and the MBP is 2013 with Mavericks. With default settings and no hotspot enabled I can access the VM's server from the host OSX. The network setting on the VM is "Shared" and it's IP is 10.211.x.x. When I join the hotspot from another laptop the other laptop gets an IP 169.254.x.x and it can't ping 10.211.x.x or access the server on that VM Is there a combination of settings on the VM and MBP's hotspot such that I can access the VM server from a client on the MPB's hotspot?

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  • Limited connection whenever I connect to a Wi-Fi network outside the company

    - by anderZubi
    Whenever I connect my work laptop to a wireless network outside of my company, the connection shows as Limited, and there is no internet access. I have tried several times by disabling/enabling the network adapter, restarting the computer... without success. Sometimes, after a while, without taking any action, it shows fine, and I have internet access. But can pass 2 hours before this happens. My computer is under a domain network, but I don't think that's the problem, because I can successfuly connect other computers belonging to same domain to other networks. I'm running Windows 8 Pro and my network adapter is the following: Qualcomm Atheros AR9285 Wireless Network Adapter Any idea of which is the problem and how to solve it?

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  • Ubuntu Natty 11.04, Turning the wireless switch off; switches it off permanently!

    - by ZiGi
    i'm using an hp pavilion dv2000 i turned the wifi switch off by mistake, the LED turned orange and the wifi got disconnected. and now when i turn the switch on, it remains orange and the wifi still isn't functional. this happened before; i found a fix that worked searching google. it was done via terminal commands and i didn't have to download anything but i can't find the solution anymore! wlan0 shows up when i use: :~$iwconfig #BLA BLA BLA #... wlan0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off more results: :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: yes Hard blocked: yes :~$ sudo rfkill unblock all :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: no Hard blocked: yes :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill it's still hard blocked! even though the switch is turned on; gives the same result eitherways a direction to a page with a working solution is a much appreciated answer!

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  • Debian/Ubuntu - No network connection

    - by leviathanus
    I have a very weird situation on my Ubuntu 12.04 LTS Server. I can not access (ping) my gateway, although I believe my config is ok - I attach the outputs. Any hints where to look? (I changed the beginning of the IP to something different, just obfuscation) ping 5.9.10.129 PING 5.9.10.129 (5.9.10.129) 56(84) bytes of data. From 5.9.10.129 (5.9.10.129) icmp_seq=2 Destination Host Unreachable From 5.9.10.129 (5.9.10.129) icmp_seq=3 Destination Host Unreachable From 5.9.10.129 (5.9.10.129) icmp_seq=4 Destination Host Unreachable uname -r 3.2.0-29-generic ifconfig eth0 eth0 Link encap:Ethernet HWaddr 3c:97:0e:0e:54:d7 inet addr:5.9.10.142 Bcast:5.9.10.159 Mask:255.255.255.224 inet6 addr: fe80::8e70:5aff:feda:c4ac/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1216 errors:0 dropped:0 overruns:0 frame:0 TX packets:490 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:107470 (107.4 KB) TX bytes:34344 (34.3 KB) Interrupt:17 Memory:d2500000-d2520000 ip route default via 5.9.10.129 dev eth0 metric 100 5.9.10.128/27 via 5.9.10.129 dev eth0 5.9.10.128/27 dev eth0 proto kernel scope link src 5.9.10.142 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 5.9.10.129 0.0.0.0 UG 1000 0 0 eth0 5.9.10.128 5.9.10.129 255.255.255.224 UG 0 0 0 eth0 5.9.10.128 0.0.0.0 255.255.255.224 U 0 0 0 eth0 iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination UPD: Eric, this is how routing information looks on a working server: 0.0.0.0 78.47.198.49 0.0.0.0 UG 100 0 0 eth0 78.47.198.48 78.47.198.49 255.255.255.240 UG 0 0 0 eth0 78.47.198.48 0.0.0.0 255.255.255.240 U 0 0 0 eth0 As I understand it, Hetzner tries to ensure security by this, so I can not take over an IP by changing my MAC. But this is another server, which has another netmask (255.255.255.240) UPD2: BatchyX, on the working server: 78.47.198.49 dev eth0 src 78.47.198.60 cache on the broken: 5.9.10.129 dev eth0 src 5.9.10.142 cache

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  • Wired and wireless conections: force Windows to connect to laptop through Ethernet?

    - by danielkza
    I have a desktop connected to the internet and to my home network through Wi-Fi, and a latptop connected to said desktop through an Ethernet cable. But Windows seems to only reach the laptop through Wi-Fi: I want to transfer files through the wired connection instead. Setting up Internet Connectin Sharing and disconnecting the laptop from Wi-Fi altogether doesn't seem like the most elegant solution to me. I also thought about going to the hosts file and setting up the IP address manually, but that would make the laptop completely unavailable if it's not wired, which happens quite often unfortunately. Is there any way for me to tell Windows to use the wired connection for a particular host if possible, and fallback to any other route it finds otherwise?

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  • IP camera's multicast/RTSP conflicting with 2.4GHz Wi-Fi?

    - by jayson
    Here at our business we have a Netgear R7000 running DD-WRT. I have been slowly adding IP cameras which I run using Blue Iris software. The last camera I bought (which is NOT a wireless camera), when I plug it into the network I start having really bad connection issues on the 2.4GHz Wi-Fi network. The 5GHz works fine, just the 2.4GHz all of the sudden has trouble connecting, as if it's conflicting. I've tried playing with the camera settings, different IP addresses, HTTP ports, etc, and discovered it to be a conflict with multicast. When multicast is checked, the Wi-Fi has issues but my video streams via Blue Iris. When unchecked, Wi-Fi works fine but the video won't stream through Blue Iris. The problem is there are no settings in the camera to change the RTSP port, which is set to 34567. Does anyone know something that could fix this issue? It all seems very strange to me but maybe someone has an idea?

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  • linux keeps disconnecting from wireless network

    - by Matteo Ceccarello
    I'm running Arch Linux on an Acer laptop and my wirless connection doesn't stay up. After a while it disconnects, and when I try to reconnect I get stuck with a "Waiting for authorization" message. I have to retry several times before getting the connection stay up for few minutes. This happens with both networkmanager and wicd. The strange thing is that the iMac that sits next to the laptop connects fine, and when I use my laptop within the university wireless network it works normally. How can I solve this problem? EDIT: I've tried to connect manually following the steps iwlist wlan0 scan wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf dhcpcd wlan0 and it works, I can ping google. However, looking to wpa supplicant output I see that it keeps connecting and disconnecting. I'm using WPA2, and this seems to be a problem in authentication. EDIT 2: as pointed out in the answers I forgot to mention my hardware/software specifications: kernel: Linux 3.0-ARCH wireless card: # lspci | grep -i net 07:00.0 Network controller: Intel Corporation WiFi Link 5100 module used # lsmod | grep -i 80211 mac80211 216021 1 iwlagn I use a Netgear DGN1000 modem/router My dmseg output is shown here http://pastebin.com/8Tf7iage

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  • How can I connect my Xbox to my Mac on my network

    - by codecowboy
    I have a wireless router/modem (Router 1) in my living room. This is connected to the internet (cable). Wireless is disabled as the router has a terrible wireless range. My Xbox is connected via ethernet to Router 1. Another LAN output from Router 1 connects to a powerline adapter. Router 1 acts as a DHCP server on 192.168.0.x and has the IP 192.168.0.1 In a second room I have Router 2. This has the powerline feed from Router 1 going into the WAN socket. This router runs the Tomato Firmware and acts as a wireless router for the rest of the house using the IP range 192.168.1.x. Router 2 IP is 192.168.1.1. My Mac is connected to Router 2 using a LAN cable and has the IP 192.168.0.133. Several mobile devices need wireless access. I want an ethernet connection to my Mac, not wireless. I should be able to use software like Connect360 to share media from my Mac to the XBox but the XBox does not see my Mac. I can ping 192.168.0.1 from the Mac. Is this possible using my current setup? If so, how?

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  • How to troubleshoot intermittent and irregular connection errors on home network (preferrably Mac client)

    - by Martin
    Hi, I'm experiencing intermittent connection errors in our home network from two different computers, normally "Connection Reset" when browsing, but also other issues such as very slow throughput. I have approximately a network setup as below: ISP-Cable Modem-Dlink DIR 655 Router-(Ethernet)-Fon Router-Mac/Windows laptop Basically, is there a simple way to monitor the network and detect where issues are coming from? Right now we don't know if it is the Fon router, the Dlink router, the modem or the ISP. As the issue is intermittent, is there a software that regularly traceroutes a set of destinations and tests e.g. throughput, something that can help us figure out where in the chain the errors are introduced? The more automatic network monitor, the better.

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  • Ubuntu: disable udev's persistent-net-generator.rules

    - by Luke404
    I'm using Ubuntu 12.04 LTS server edition and I am modifying /etc/udev/rules.d/70-persistent-net.rules to define my own mappings of ethernet interfaces to MAC addresses; that file is initially generated by rules in /lib/udev/rules.d/75-persistent-net-generator.rules at system installation time (or at the first boot, I actually don't know and it doesn't matter here). How can I be sure that my edited version will never ever be overwritten by anything? Removing the persistent-net-generator, as suggested on some websites, is not the Right Thing™ to do as told by comments in the file itself: it will be overwritten by any update of the udev package. I'm looking for a more formally correct way to disable it. Is it enough to just make sure that /etc/udev/rules.d/70-persistent-net.rules does exist? Maybe there are other events that could trigger its regeneration? (eg. adding or removing ethernet interfaces to the system?)

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  • MBP Bluetooth PAN connection with iPhone 4

    - by Chetan Sachdev
    I am trying to share MBP(OSX 10.8.3) internet connection with iPhone 4 (iOS 6) using Bluetooth PAN(Personal Area Network). Problem is Bluetooth PAN is not getting an ip address. I have tried to renew DHCP lease but nothing works. When I give a Manual IP address, the Bluetooth PAN goes green but doesn't shows the connection in iPhone. Is it possible to share the internet connection via Bluetooth. Note: I don't want to create an Ad-hoc connection over wifi.

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  • Wireless network relay?

    - by IPX Ares
    Is there hardware (links would be great) that can connect to the wireless internet already in my house and provide hard links to other hardware? Basically the problem is that my basement is not wired up to let me hook up my cable modem. I have some electronics that do not have wireless and need a LAN wire. Is there something I could plug in downstairs to act as a relay hub?

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  • Wi-Fi connection drops when downloading torrents, but wired connection still works

    - by bryan
    After downloading for an hour or so, the Wi-Fi connection on my tablet stops working; forcing me to restart my router(it basically hangs when trying to connect). This only happens when downloading torrents. WIRED connection on my desktop PC with router still works fine; no issues at all. I tired to lower the number of global connections to 50, but I still have the problem. I have also updated to the latest Linksys firmware. One PC, a tablet and a smartphone. I have COX cable. Please let me know if you need any other info. Thank you!

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  • Is there a PC equivalent for the Android 'Wifi Analyzer' App?

    - by Connor W
    I'm using the Wifi Analyzer app on my phone a lot at the moment as I need to set up and test some wireless networks. For people unfamiliar with the app, i've posted some screenshots of the app that I found on the internet. I'm looking for some software that will do the same or similar thing, but on a PC. I've looked on Google, but could not find anything of use. Thanks in advance for any information.

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  • Connect android to linux laptop

    - by Claudio Ferraro
    I've a laptop with linux and wanna to connect an android device to the linux machine. On linux i have an mpd server installed. wanna to be able to connect from an android mpd client to the server which resides on the laptop. I tryed to create an Ad-hoc Wifi network on linux but the Android cannot find the Wifi network..How can I proceed..Should I buy a wifi access point or something like that ? I've a wifi router , it could help me somehow ?

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  • my laptop wireless registers as 169.254.111.111

    - by Roalt
    I sometimes gets an ip address of 169.254.111.111 received for my laptop (instead of one in the 10.0.0.x range). I thought it was a problem with my Ubuntu system, but after I dual-booted I got the same problem under Windows Vista with the same laptop. What's the problem, why does it happens only sometimes, and how can it be solved? For the record: I'm using a Linksys WRT610N wireless router.

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  • Ubuntu 9.10 Internet not working

    - by Mr. Man
    I am using a BlueProton USB wireless network adapter and an Ubuntu 9.10 machine and the machine says that it is connected to the internet but it won't see other machines/devices on the local network and only a few websites work.

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  • WiFi & GbE Slow while Both Active.

    - by Mark Tomlin
    I'm having a problem with my WiFi network connection when I use my wired GbE connection concurrently on my Laptop. I'm using my WiFi for Internet access, and general web surfing and I'm using my GbE connection to connect to my PlayStation so I can stream media. The WiFi connection is via a Linksys 610N connected to my Cable Modem. Where as the GbE connection is a direct connection from my Ethernet port to the Ethernet port of the PS3 via a Cat-5 cable (no router in between this connection). As soon as I connect the cable from the PS3 to my Ethernet port on my Laptop the WiFi connection slows to a halt, but then allows for a connection to the web as normal but at much slower speeds for the things like BitTorrent that stops completely. It seems to me that Windows can't handle both connections at once. It will have both active but it can only accept and send packets on one device at one time. I can get WiFi connections to work to go to websites and the like, but once I use my GbE connection to share media between my Laptop and my PS3 the Wifi connection dies out and I no longer have access to the internet. I setup my connection on the PS3 and the Laptop following the insturctions posted here: http://forums.finalgear.com/problems/s14e01-ps3-size-problem-40642/#post1188132 And the following is the results of my ipconfig. Windows IP Configuration Host Name . . . . . . . . . . . . : dygear Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter WiFi: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/Wireless 3945ABG Network Connection Physical Address. . . . . . . . . : 00-19-**-**-**-** Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.111 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.1 167.206.254.2 167.206.254.1 Lease Obtained. . . . . . . . . . : Wednesday, May 19, 2010 08:55:30 Lease Expires . . . . . . . . . . : Thursday, May 20, 2010 08:55:30 Ethernet adapter LAN: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet Physical Address. . . . . . . . . : 00-16-**-**-**-** Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : 192.168.1.50 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : Any ideas?

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