I am by no means well versed in networks, I have some “set it and forget it” tp-link Deco m5 mesh, with one of them set up as the router, linking wirelessly to another two units.
This has worked without a single issue for years…
I used my laptop earlier today, was watching a show from my home media server in the jellyfin application. Got interrupted and just closed the lid on my laptop. A few hours later, my laptop can’t access anything on local network.
It connects just fine to my wifi and has internet access. It just can’t connect to any device on my local network.
Aside from my server which has a static IP, all IPs are just assigned with DHCP, as far as I can tell there are no duplicates.
All other devices connect to each other as usual, only my laptop is acting up. I’ve tried resetting network connections on the laptop, that didn’t work. Obviously tried a reboot, but also didn’t work.
I’m running Linux mint on the laptop.
Okay. Your laptop can’t ping or SSH into the server. First, figure out if the problem is one-way. Can the server ping the laptop, or is it just dead in both directions?
You mentioned all other devices communicate normally—do they all fail to reach the laptop, or is the issue isolated to the laptop and server pair?
Physically check the server and confirm both IP addresses to ensure you’re not chasing the wrong info. Once you’ve got the correct IPs, ping the laptop from the server’s side. If the server can’t reach it either, you know this isn’t just a laptop-to-server problem.
Also, did you set up a firewall on the laptop? That’s worth looking into. And yes, it’s annoying, but try the simple stuff: disconnect and reconnect your laptop’s Wi-Fi, reboot it, even run sudo apt update just to rule out anything weird. Start with these basics before moving on to more complicated troubleshooting.