I have been having an intermittent and recurring problem with my onboard network adapter for the past year or two: XUbuntu 20.04 Network Device disconnecting every few minutes. It won't happen for months at a time, and then it'll start up for a week or two, and then go away. I can't figure out the cause. I upgraded from 20.04 to 22.04 and it persisted. (I think it has something to do with one of my storage hard-drives getting nearly full, but I'm not trying to troubleshoot that problem now).
Rather than continue to wrestle with this issue, I decided to buy a new network card and plug it in and use that, hopefully solving the problem.
I bought a Rosewill RC400-LX. I plugged it in and turned on the computer, expecting it to just work. Instead, I had no connection and the network configuration icon in my system tray didn't launch. Not knowing how to launch that manually, I plugged the wire back into the onboard network adapter and restarted. I got internet. I then plugged back into the new adapter and there was no internet.
I tried going to "edit connections" and creating a new connection. When I click the "device" drop down, only the old card shows, not the new one.
I typed lspci -v and I do not see the new adapter listed there.
I spent $15 or $25 on this new card and if it isn't a good choice for compatibility with linux I'm happy to buy another one that is more linux compatible.
Alternatively, if there's something I need to do to get this card configured in, please let me know and I'll do it.
Thanks!
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