Odd networking issue with Thinkpad ethernet and Archer VR2100
Hi all, I'm seeing a somewhat strange behaviour with one of the machines in my network lately which could potentially be related to the router (as well)?
It's a Thinkpad X1 connected to one of the routers' ethernet ports via the breakout connector.
Problem is, the router is not issuing IP addresses to the laptop any more, nor routing to the internet for it, nor doing DNS resolution.
The physical connection works: when configuring the IP manually on the laptop, I can talk to other machines on the wired link just fine.
I have other machines connected via ethernet, and they all work fine, DHCP, routing, all. It's just this laptop. Switching ethernet ports on the router around had no effect.
Not an OS issue either: dual booted the laptop into Linux, same problem.
Funny thing is, when the IP is set manually, the laptop is showing up on the router's client list. So the router must at least see some packets.
The same laptop connects wirelessly to the router without any problems whatsoever.
Nothing in the router log that would get me any further. I'm a bit at a loss here, any thoughts would be appreciated.