Hi:
Unfortunately, those 24 character error codes rarely produce meaningful information.
The translation of the specific code you received is "Failed."
That doesn't tell you a whole lot. It doesn't even tell me if it is a wifi card failure or ethernet adapter failure.
The fact that you lost the connection for no reason and you got the code, pretty much does indicate a hardware failure.
The wifi card can be easily replaced.
Since the ethernet is onboard, the motherboard would have to be replaced.
If the ethernet adapter failed, the easiest thing to do would be to purchase an external USB to RJ-45 ethernet adapter.
They are cheap and should have no compatibity issues.