Naming devices connected to Home Internet

I've asked T-Mobile about this issue over and over. First they always seem clueless, then make me check the device name on my phone's settings (again), only to finally say that renaming devices isn't an available option at this time. It's so frustrating! Not happy about that and the fact that I can't access the app unless I'm home. So when I'm at work I can't look to see what devices are connected to my network. And, if I go to my security camera app and it says it's offline, how do I know if the problem is my Wi-Fi or my cameras? When I asked T-mobile about this, they couldn't even restart my signal. Turns out you have to be home for them to do that too. What's the point if I can't see my cameras when I'm away from home? They have some serious issues they need to fix with their setup. Not worth the savings.