Cable Forum - View Single Post

Gareth · 02-02-2007, 12:05

Thanks - I forgot to say, don't post the bottom section of ipconfig... you might want to delete the last section which displays your cable modem's IP address, just to be on the cautious side.

---------- Post added at 12:03 ---------- Previous post was at 11:55 ----------

This part suggests your PC isn't seeing the router...

Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.168.248

It's saying to use DHCP - so your PC gets its IP address from the router instead of from NTL's DHCP server, yet the IP address that your machine is using is 169.254.168.248, which is like an emergency fallback when the PC can't get any DHCP details - it's referred to as the automatic private IP adressing (APIPA) range, and can be anything from 169.254.0.1 - 169.254.255.254. What you should be getting, however, is an address that beings with the same prefix as the IP address of your router, e.g. 192.168.x.x.

As you've checked that the cables are OK when they're not using the router, and as you've checked that your network interface card on the PC is OK when hooked-up to the cable modem directly without using the router, I'd be tempted to say that the router itself is faulty. Did you buy it recently, and is it still under warranty?

---------- Post added at 12:05 ---------- Previous post was at 12:03 ----------

Actually.... before you do that, I've thought of something we haven't checked.

Have you got any firewall running on the PC? If so, disable it temporarily and try hooking up your router again.

02-02-2007, 12:05	#9
Gareth cf.mega poster Join Date: Dec 2003 Age: 50 Posts: 7,101	Re: which router Thanks - I forgot to say, don't post the bottom section of ipconfig... you might want to delete the last section which displays your cable modem's IP address, just to be on the cautious side. ---------- Post added at 12:03 ---------- Previous post was at 11:55 ---------- This part suggests your PC isn't seeing the router... Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Autoconfiguration IP Address. . . : 169.254.168.248 It's saying to use DHCP - so your PC gets its IP address from the router instead of from NTL's DHCP server, yet the IP address that your machine is using is 169.254.168.248, which is like an emergency fallback when the PC can't get any DHCP details - it's referred to as the automatic private IP adressing (APIPA) range, and can be anything from 169.254.0.1 - 169.254.255.254. What you should be getting, however, is an address that beings with the same prefix as the IP address of your router, e.g. 192.168.x.x. As you've checked that the cables are OK when they're not using the router, and as you've checked that your network interface card on the PC is OK when hooked-up to the cable modem directly without using the router, I'd be tempted to say that the router itself is faulty. Did you buy it recently, and is it still under warranty? ---------- Post added at 12:05 ---------- Previous post was at 12:03 ---------- Actually.... before you do that, I've thought of something we haven't checked. Have you got any firewall running on the PC? If so, disable it temporarily and try hooking up your router again.