vetesgrl

https://github.com/radxa-pkg/aic8800/releases/tag/4.0+git20250410.b99ca8b6-2
 
The above should get you to a useable page. Download the USB version of the .deb package. I stored mine in the /root but had to copy it to the /tmp directory and install it from there. I installed the .deb package after the apt upgrade process, then rebooted.  There may be a more recent version of the package. If I find it, I'll post a link 
Hope this helps, let me know if you run into trouble.

Finally able to solve the problem.  The aic8800 wifi modules and others associated with the wifi driver are deleted when upgrading the kernel.
I found Debian packages on radxa's github site downloaded the firmware and usb modules and then reinstalled them from the /tmp directory
after kernel upgrade but before rebooting.  
While this does work, it is a sloppy hack.  It seems to me that there ought to be some way to retain the wifi drivers on upgrade, but it will take a more knowledgeable person to do that.
The same hack allows the wifi on the Rock-2A to survive a kernel upgrade.  Wired Ethernet of the Rock-2A survives a kernel upgrade without issue.