Why does restarting the modem fix latency?

Posted by Giovanni Galbo on Super User See other posts from Super User or by Giovanni Galbo
Published on 2011-02-02T00:30:32Z Indexed on 2011/02/02 7:28 UTC
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Filed under:

internet

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Performance

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modem

In the last few days I've noticed poor internet performance. Today I ran a speed test and the results were abysmal... 10mb down and 0.18mb up (which really hurt, because I was trying to RDC from another location). I pay for 30mb down and 5mb up. Latency was at 128ms.

Before calling my ISP to give them a verbal lashing, I unplugged the modem and plugged it back in. I pretty much got top speed after doing that (with a latency of 7ms).

I'm the type of guy that likes to know what goes on under the hood. So what's the deal? What mysterious powers does restarting give to my modem?

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