Battling Peripherals

[den]

The office ADSL modem won't hold a connection for more than a few minutes before dropping off. It reconnects when I reboot it, but then it loses the connection again. The router log tells me
"Unrecognized attempt blocked from 10.0.0.138:137 to 10.0.0.1 UDP:137" every 10-20 seconds, as the connection drops out. (10.0.0.138 is the modem) The weird part is that the BBC Radio2 stream isn't affected by this, just email, ftp and WWW.

I've changed nothing in the filters or firewall between yesterday and today.

Bloody hardware.

(reboots modem to post this)

Comments

[jamesb]

As it's your MODEM that keeps needing a reboot, I'd look for the source of the problem in the MODEM itself.

A lot of ADSL MODEMs include their own internal routers, and only need to be connected to a hub. Looking at your router logs, I suspect that your MODEM is running in router mode and is masking what's really going on (like the true source of the port 137 probes). It is usually possible to shut down the router system in the MODEM and rely on an external router instead.

[dewhitton.livejournal.com]

I'm looking at it now.

The odd thing is that it's happening now, but the connection is not dropping out and doesn't need a reboot every 5 minutes.