I just installed 2 ax1800 deco's in my house a few weeks ago. Everything is working fine in the home, however i am still having issues connecting/staying connected in the detached garage which is not

I just bought the 2pack deco W3600 WiFi mesh today and after issues getting it installed I finally got it up and running. I am looking to change my Wi-Fi settings (my WiFi network name says weak secur