Upgraded Router Firmware - cannot connect to ISP

[kevvyb]

Oh hell. Upgraded my router firmware and all seemed to be going well with configuration until I did a restart and seemed to lose my network connection. Appears that router is now not establising a connection with my ISP. I have enabled DHCP and enabled automatically detect settings, disabled use proxy server.

Have also enabled TCP/IP which is set to detect settings automatically and enabled netbios over TCP/IP as I have a static IP address..

The really odd thing is that I can establish contact with the router but I cannot now change any settings as I keep getting prompted to connect and of course, when I do, there is no connection. This appears to be preventing me from getting anywhere.

Router is synced but no online connection.

Running IPConfig was giving very odd results whcih I did not note and this has now changed to the following which I think is still wrong:
Connection Specific DNS: blank
IP Address: My IP Address
Subnet Mask:default 255.255.255.255
Default Gateway: My IP address

I am running XP SP2 no problems until this evening. Fully virus scanned, multi spyware portected and firewalled.

Router is 3Com 3CRWDR100A-72 and I just updated to the October 2005 firmware release v2.06

Am at a loss as to where to go from here. Any ideas on this very gratefully received.


In addition:

Subsequently looking at the status details of the connection reveals the following:
Physical Address: Blank
IP Address: 0.0.0.0
Subnet Address: 0.0.0.0
Default Gateway, DNS and WNS all blank

I have swopped to another system that has not been used since installation and the connection is not made there either. I have cross checked all settings. Status details were different. I think my IP address and a default subnet. So I don't think it's corruption of system files or anything like that.

The only thing that has occured to me just now is that I (probably stupidly) had a laptop connected to the router as well as my desktop when I upgraded the firmware and attempted to reconfig the router. This was at the time connected through said LAN over VPN to my work servers. I cannot beleive I was so stupid as to do this. Has this maybe confused the router in some way? Starting to feel to me like I now need to manually configure as the router is not detecting settings automatically.

I ahve also restarted and reset the router to no avail, having unplugged it and powered down.

[kevvyb]

Have managed to get the reset to work. May not have held it in for long enough but I also think there was something else going on. First reset didn't work it just kept flashing, until I powered down for 30 secs then did another reset. I think it had just got totally screwed. Anyway have now got connection through DHCP and am on the new firmware which has some increased security upgrades!!