I didn't know where to put this, but I'm hoping one of you network wizards can help.
I use a Netgear RP614 router/switch, which has been trouble free. Recently I moved, and was forced to use my laptop for dial-up connection for a week or so. Prior to that, the laptop was running on the network just fine. Laptop is WindozXP. OK, so now that DSL is back online, the network seems to be running fine via a new DSL modem. (Actiontek), but the laptop will no longer log into the network and cannot get an IP address from the router. XP gives me an icon/exclamation in the taskbar that says "no connectivity". The details state that the IP is 0.0.0.0. Rebooting everything has no effect, and XP is unable to repair. I tried uninstalling the network adapter on the laptop, ran ipconfig-release and renew, and nothing works. The router shows a green light.
From the router config:
Main puter: 192.168.0.3
The laptop intermittently appears in the router config as 192.168.0.2 This is obviously a conflict, but rebooting the router does not fix it, so I'm guessing that XP is forcing this IP address somehow. The laptop should come up as 192.168.0.4 AFAIK, but will not. I run ZoneAlarm, and have all the needed IP address listed as trusted zones, so that shouldn't be an issue.
If I recall right, the old modem did not have an IP assigned by the router, but the new one does.