WiFi and SIM dropping/stuttering iPhone 12 Pro and IPad Pro 16.1.2

Hey y’all,

Im currently going through the wringer with connectivity on both of my Apple devices. This has been going on for a few weeks now but I am constantly losing Wi-Fi over and over again like it is blinking on and off. My internet on my other devices - PC and Nintendo Switch - have been working just fine. I have an eero setup in my apartment so I am within a few feet of a beacon in any room in my house I normally use these devices. On my phone and iPad every few minutes, the WiFi symbol turns to 5G and flips right back on again. I have reset my network settings and have reconnected to my network on both devices. Further, on my iPad I am intermittently getting flashes of “No Sim Installed” for only a second just like the Wi-Fi flipping off and on. This is disrupting any work or activity I am trying to do on either of my devices. I am constantly missing calls, texts, and even my email ends up delayed due to this problem. I am out of ideas as what I can do at this point and appreciate any suggestions.

I wanted to add that my wifi is just 5ghz so it’s not flipping between bands