xFi Complete wifi dead spots

There areas with no WiFi. SSID won’t even show up or it shows and when trying to connect then disappears and shows up again 5 min later.  This is not everywhere at my house. Only certain spots. The same devices work fine with good speed if you move 5 feet closer to the gateway.

Edit: I called support again today and aparently the wifi assement never ran, atleast they could not find any results if it did. It may be because I did not install the new gateway until about a week after I got it because we were busy working from home. They resolved the issue.