|reply to Graham |
Re: Qwest frequent disconnects
Graham, Take a look at my post in the Frontier section.
»[DSL] Connection Speed Drops in the Evening
I'm having this strange problem that might be similar to yours. In the evening, when the network get congested, it appears the DSLAM starts noising up the signal (maybe jitter or something) causing the modem to fall back to a slower speed. This happens over and over again until the modem speed is down to 400 kb/s. After about an hour the noise goes away and the noise margin is better than 20 dB because the speed is so low. I included some plots that I captured with John Owen's routerstats program. It's a really cool, free program that will give you a history of what's going on. Here's a link to the utility:
actions · 2011-Aug-17 12:23 am · (locked)
Thanks I'll give it a go.
My modem now seems to have settled on 10Mbit download and 600Kbit upload (as opposed to 12Mbit and 898Kbit). The errors are still very high and dropped connections are still common (worse during peak times).
I e-mailed talk to Qwest but never heard anything back.
actions · 2011-Aug-17 9:30 am · (locked)
Here is a plot from the SNR yesterday. For about a 30 minute period the SNR was all over the place and my router dropped connection 5 times.
actions · 2011-Aug-18 9:45 am · (locked)
My issues like this always come in bursts. I can have an uptime of 25+ days on my Motorola 3347-02 router, and then for about a week I will have to cycle power on it two to three times a day. It's definitely the router that dies -- I have my main machine plugged directly into it and I can't hit the web interface or telnet into it when things go down.
I've been running it with the cover off for months, so it seems unlikely it is overheating. I haven't tried replacing it yet, but that might be the next move.
actions · 2011-Aug-18 7:18 pm · (locked)
I already replaced my router at the suggestion by Qwest. Still the same issue.
actions · 2011-Aug-18 7:58 pm · (locked)