Interesting, same computer or different? I’ve seen a loads of reasons for crashing and stability problems, pretty much anything you could think of

You need to specify if you are on windows, Linux or macos. I’ve not had crashing issues on Linux in what could be years now.

Or just use Linux?

I had a router that I converted to a access point with openwrt, couldn’t get vlan trunking to work, so I ran 3 separate network cables back to the switch and assigned each one to its own WiFi network