2.4 Ghz Signal Keeps Dropping

Same issue have my security cameras hooked up to it and it constantly loses service router says no connection and doesn't automatically connect have to physically power on/off gateway then it works again for a short period of time..however when I'm not home for long periods can't reset it. Have called customer support several times and had to wait on hold for hours and once finally connected they transfer me to another department and wait on hold for hours again. Sent me two new gateways one didn't work out the box. New gateway didn't fix the issue. Internet is almost useless as it's never working and customer service is a multi hour process and they provide no solution. Paying for a service that works maybe 10 percent of the time. Wish TMobile would fix this issue...I'll be looking for a new service.