Where you see that OP is mentioned Electrum? It is clearly stated that problem is about Bitcoin Core... You post is not make any sense
My point to do with bitcoin core was this line. I missed a word and ops issue hasn't really been solved imo.
He should try to work out tmwhy his client isn't connecting I'm with the network and checking the line t the bottom is a way to indicate a firewall!/network issue and try to pinpoint it...