u/CarryHelpful6667

So I just moved in and got new wifi. My phone and laptop connect fine. My Xbox wouldn't connect and said I needed to change security settings but I just stuck an Ethernet cable in it and that works now. My chrome cast won't connect and I can't get an Ethernet cable to it. My wifi is 6ghz and at first it didn't show up so I split it into 6, 5 and 2 ghz. It shows up now but still won't connect to it. I tried changing my security on my wifi but it won't let me change it. Also my switch won't connect to it either kinda the same problem, I see the 5 and 2ghz wifi options but can't connect to it. If you can help, I would greatly appreciate it. Thanks.