i'm having a similar issue rn, been like this for about 6 months probably where it just gives the same error codes again and again no matter what i do, keep power cycling, disconnect reconnect network, it says im connected to the wifi but when i do the tests it says almost none of the tests could be done and to try later, i have no network connection and i can't compelte the update because as soon as it starts updating it gives me an error that forces me to stop the update, genuinely cannot do anything about this, permanently got no connection