I've been trying to set up my old computer as a Minecraft server, but instead of using a spare port on my router, I opted for a WiFi card. The weird part is that I can SSH into the server from my phone, but when I attempt to connect from my computer, which is connected via Ethernet, it instantly times out and won't even respond to pings. I'm using the same username and IP for both connections. Any suggestions would be appreciated, but please don't tell me to just plug in a cable; if that were an option, I'd already be doing it! By the way, I've tried this on both Debian 12 and Ubuntu Server.
2 Answers
Here are some steps to troubleshoot:
- First, see if you can SSH or at least ping between your phone and other connected devices.
- Check if the other wired devices can communicate with each other.
- Ensure all your machines are on the same network and are set up for DHCP, which helps avoid subnet issues.
- Lastly, confirm whether the WiFi access point and router are the same device because that could complicate things if they aren’t.
It sounds like your router might have an "AP isolation" setting activated, which separates wireless and Ethernet clients into different subnets. This could be why you're able to SSH over WiFi but not through Ethernet. You might want to check your router settings for anything related to that.
Do you know how I can disable that? I'd like to try connecting without those restrictions.
I can't really check the first three points right now, but I believe my Ubuntu server installation uses DHCP by default. The router and access point are combined, but I do have a TP-Link range extender in my setup.