Loss of Server the first minutes

How can the loss of Server be solved when starting the matches, either privately or competitively, I caused that error from 30sec to 2min and then everything goes fine.

The internet is full I have 48 upstream and 45 downstream, the cables are fine and a technician checked them, just as the modem already came to check those of Total Play, in all the other games it goes wonderfully, only in Gears 5 is it the Error that has given me, and it is the game that I occupy the most.

Help, I have more than two weeks like this, both on PC and Xbox one s console is happening to me …

which icon shows up on your screen?

There are some squares flashing, it is not the Wi-Fi logo, because the Wi-Fi logo is from the local internet, the problem is that those squares appear that are lost from the server.