seanc
24-10-2005, 00:50
Hi,
Ever since NTL's planned downtime due to "network optimisation", I've been unable to keep a consistent connection to the internet.
*** Some Background ***
The problem arose when booting my equipment Friday evening.
The symptoms: No internet connection on any computer, 100% packet loss to both domain names and raw IP addresses.
During downtime, the modem's sync and ready lights stay a solid green while the downstream and ethernet LEDs flicker as usual. Originally, the web configuration page of my router displayed a 'correct-looking' external IP address in the range 81.***.**.*** with the relevant gateway but I rebooted the cable modem, router and PCs just to be sure. The router obtains the same IP address. I removed the router from the equation and connect the computer directly to the cable modem.
*** The Problem ***
Sometimes I get served a working IP (like now), often I get one which seems valid but plain wont work no matter how many times I reboot the modem and attempt to refresh my IP address.
My laptop is currently unable to access the internet using its onboard ethernet so I plugged in a cardbus NIC on instruction from the head of NTL's callcentre technical support. Lo-and-behold, it works! No matter how many times I reboot the modem and laptop, the onboard adapter and cardbus NIC obtain differing IP addresses, only one of which actually seems to work.
I cloned the MAC address of my external NIC onto the laptop two minutes ago and I can now access the 'net without some unwieldy card hanging out of my computer but I'd be hard pushed to call this a solution. After all, my laptop was working earlier and I was cloning _it's_ MAC address to obtain a working connection on my _other_ computer.
Does anyone have suggestions on how to refresh a 'working' IP address without changing the MAC addresses round? I'd like to use my broadband with a router and it affords no way to alter the outbound MAC (and has worked flawlessly for the past three years anyway...)
Cheers for reading all this muck, and any help will be appreciated
-Sean
Ever since NTL's planned downtime due to "network optimisation", I've been unable to keep a consistent connection to the internet.
*** Some Background ***
The problem arose when booting my equipment Friday evening.
The symptoms: No internet connection on any computer, 100% packet loss to both domain names and raw IP addresses.
During downtime, the modem's sync and ready lights stay a solid green while the downstream and ethernet LEDs flicker as usual. Originally, the web configuration page of my router displayed a 'correct-looking' external IP address in the range 81.***.**.*** with the relevant gateway but I rebooted the cable modem, router and PCs just to be sure. The router obtains the same IP address. I removed the router from the equation and connect the computer directly to the cable modem.
*** The Problem ***
Sometimes I get served a working IP (like now), often I get one which seems valid but plain wont work no matter how many times I reboot the modem and attempt to refresh my IP address.
My laptop is currently unable to access the internet using its onboard ethernet so I plugged in a cardbus NIC on instruction from the head of NTL's callcentre technical support. Lo-and-behold, it works! No matter how many times I reboot the modem and laptop, the onboard adapter and cardbus NIC obtain differing IP addresses, only one of which actually seems to work.
I cloned the MAC address of my external NIC onto the laptop two minutes ago and I can now access the 'net without some unwieldy card hanging out of my computer but I'd be hard pushed to call this a solution. After all, my laptop was working earlier and I was cloning _it's_ MAC address to obtain a working connection on my _other_ computer.
Does anyone have suggestions on how to refresh a 'working' IP address without changing the MAC addresses round? I'd like to use my broadband with a router and it affords no way to alter the outbound MAC (and has worked flawlessly for the past three years anyway...)
Cheers for reading all this muck, and any help will be appreciated
-Sean