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nomad74 · 19-09-2006, 09:42

Hope you guys can help with this one...

Network Config:

ISP: TW
CM: Motorola SB4100
ROUTER: Linksys WRT55AG v2 (ethernet cabled from Internet Port to CM).
Desktop PC cabled to one of the router's LAN ports.
Laptop connects wirelessly to router.

This config worked 24/7 for 4 months, then one morning a few weeks ago just gave up. I tried rebooting everything (including leaving everything powered down for > 12 hours) - no joy.

My investigations showed the following:

1) Desktop or laptop cabled direct to CM allows normal internet access.
2) Router powered up without the link to the CM allows wired and wireless access to the router's set-up page (192.168.1.1).
3) Making the cable from router to CM causes router to reboot every 20-30 seconds before any connections can be stabilised.

Spoke to Linksys tech support (2x40 mins calls!) and after the usual scripts had been followed (hard reboot, firmware upgrade etc) they decided the router was faulty and have offered a replacement. However, speaking to a techie friend, he reckons that the problem could be with TW. It sounded to him like the router was unable to logon to the CM due to some config problem at TW. It is a bit suspicious that this happened within a few days of me requesting a downgrade in connection speed (4M to 2M)...

I've tried talking to TW tech support, but I lack the knowledge (and the strength to be honest) to get past the 1st line support operatives who only know how to reboot the hardware.

Anyone got any ideas? I can try the replacement router offer from Linksys, but I wanted to be sure that the problem isn't more subtle first.

PS. I've had a look at the CM logs (192.168.100.1) and it appears to indicate that there is a problem with MAC address filters and being unable to learn the MAC address of the CPE. Does this help at all?

19-09-2006, 09:42	#1
nomad74 Inactive Join Date: Sep 2006 Posts: 5	Linksys router keeps rebooting with TW Hope you guys can help with this one... Network Config: ISP: TW CM: Motorola SB4100 ROUTER: Linksys WRT55AG v2 (ethernet cabled from Internet Port to CM). Desktop PC cabled to one of the router's LAN ports. Laptop connects wirelessly to router. This config worked 24/7 for 4 months, then one morning a few weeks ago just gave up. I tried rebooting everything (including leaving everything powered down for > 12 hours) - no joy. My investigations showed the following: 1) Desktop or laptop cabled direct to CM allows normal internet access. 2) Router powered up without the link to the CM allows wired and wireless access to the router's set-up page (192.168.1.1). 3) Making the cable from router to CM causes router to reboot every 20-30 seconds before any connections can be stabilised. Spoke to Linksys tech support (2x40 mins calls!) and after the usual scripts had been followed (hard reboot, firmware upgrade etc) they decided the router was faulty and have offered a replacement. However, speaking to a techie friend, he reckons that the problem could be with TW. It sounded to him like the router was unable to logon to the CM due to some config problem at TW. It is a bit suspicious that this happened within a few days of me requesting a downgrade in connection speed (4M to 2M)... I've tried talking to TW tech support, but I lack the knowledge (and the strength to be honest) to get past the 1st line support operatives who only know how to reboot the hardware. Anyone got any ideas? I can try the replacement router offer from Linksys, but I wanted to be sure that the problem isn't more subtle first. PS. I've had a look at the CM logs (192.168.100.1) and it appears to indicate that there is a problem with MAC address filters and being unable to learn the MAC address of the CPE. Does this help at all?