Kristoff. I'm actually sitting in physical therapy right now but if I go from memory: Log into the router via an internet browser, select advanced options/configuration, Wi-Fi settings, uncheck the box next to "broadcast 5ghz signal", save/apply. This will cause only 2. 4 to be visible. On a side note, I was also going to try creating a password protected guest login using 2. 4 only and connect directly to that but haven't given it a try yet.