Macbook Pro 2013 refuses to connect to wifi networks?

Question

WiFi

I ran into a problem that was not clear to me, we have a 13-inch 2013 Macbook, a permanent location in Moscow, once a year I go to the Krasnodar Territory. And now for the second year in a row I get the same problem, it stops connecting to any wifi networks. He sees everything, but refuses to connect, tried with a Zyxel Keenetic router, created mobile access points on two phones and tried to connect to them, effect 0, did a completely open network (without a password) the same thing! As soon as you return to Moscow, everything works, what is it?