I have dealt with the ‘weak security’ message before and have fixed it before by changing my wifi settings to secure WPA2 however I ran into the situation again and it didn’t seem to work. Yesterday I ran into this similar problem and tried my previous solution. It worked but the message started appearing again so I changed my admin password and wifi password to make sure no one was tampering with the WiFi from the outside as that seemed like the best approach after. Everything is fine but now every time I go downstairs I seem to just lose wifi and it would reconnect for a second then disconnect and ask for the password. When near the router though, it would just connect instantly and I wouldn’t face any problems.
I also have a booster located in the other bedroom and I was just wondering if my booster is also affected by a wifi password change?