Limited or No connectivity message on desktops, but laptop works fine

[Ike0069]

I have DSL going to a Linksys router wired to 4 computers. Three desktops and one work issued laptop. Everything was fine last night, but this morning I could not connect on my main PC. I tried resetting the modem and router, checking the cables, but nothing worked. I tried my two other desktop PC's and they get the same limited or no connectivity message.

I then tried my work laptop and it is fine. It's what I'm using now. This lap top is wired and I tried switching the router slots, but nothing changed.

I don't know where to even start right now. This makes no sense to me.

Two desktops are Windows XP home, one is XP Pro, and laptop is XP Pro.


Edit: Working for now

 

[kTriNity]

I have had shitty routers in the the past. One Linksys and 1 D-Link, so I ended up getting TrendNet which has been working for me for 4 years now.

Linksys lasted me 3 days and D-Link lasted for 2 weeks.

If it happens to you again then it might be your router going bad.

 

[spidey07]

There is little to no reason for a router to "go bad".

DHCP is a very simple protocol. But in order to diagnose, swapping hardware and cables is not the way to go for troubleshooting networks.

Ike0069 - download wireshark to capture traffic to diagnose. Make sure you're not using homemade cables, just because it worked yesterday doesn't mean it will work today. Make sure you have link lights on both ends (the router port and the NIC in the machine). Then look at your router logs/dhcp table to see if your computer's mac address (you can find this with "ipconfig/all" sent a request and received by the router.

Or try a static IP to confirm you have two-way connectivity to the router and use ping. If you can ping your router's IP address using a static IP then you at least have basic IP connectivity.