2.4 Ghz internet devices keep disconnecting from GSE internet box

Been busy but I have an update on this issue.  The computer connected to 5 gigahertz bandwidth has been more stable for a week now.  It was like a whole week that we woke up and still had internet service throughout the house.  Less of the devices that connect only to the 2.4 gigahertz bandwidth were being dropped. By George, maybe the issue with the gateway has improved.  Not so much today.  Today all the devices that are connected to the dedicated 2.4 network are being randomly disconnected from wifi.  My home thermometer won't stay connected more than a couple hours at a time.  Just like the fridge. But here's what I have discovered because of getting a new internet capable home security system. The gateway is having trouble with the password working. Here's what's up. The device will no longer show online and trying to reconnect prompts for the password every time. When it goes to the handshake stage of connecting the error message of incorrect password happens. It's the same password I have been using for a decade. Trying to verify the password on the tmobile internet app gives that oh so common error message The gateway did not respond. If you're seeing this message repeatedly, try restarting your gateway.  You know restart the gateway only resolves the error message at a one in six chance (means you sometimes have to restart 5 or 6 times before you can get past the message). So I  noticed the plus sign was available to click on.  Just for laughs (why not when the problem continues to be extremely frustrating) I clicked on the plus.  Should not have let me do anything since I already had 4 named networks which is the limit for this model gateway. Instead it allows me to go through the steps and supposedly create another named network and take the 90 seconds to automatically reboot.  When it's back up the newly created network isn't there but the 4 that were now show up and clicking on the plus immediately gives the message you can only have max of 4 networks. 

So to sum it up.  The gateway fails to recognize the password intermittently resulting in devices being disconnected from the wifi.  Second it fails to recognize the networks that it's supposed to be broadcasting. This leads me back to my original thought that the gateway is having either firmware or software issues.  But if anyone else has any ideas please let me know and I'll be happy to try them. I am disabled now but I was going for a degree in IT before the company I worked for transferred all those jobs over seas so I am willing and capable to try very complicated procedures to fix this. Provided I can execute those commands with this crippled interface (you can't even see logs)

Gracias 

DaFattMann 

hmm. Figured I'd try to add some scren captures