my HP laptop keeps disconnecting from my New Fiber WIFI

Very strange , Only one Laptop seems to suffer this WIFI disconnect After Fiber Installations.

Facts:

This Laptop is New and in great Shape.

This Laptop was working Excellent with no Wifi Disconnect for the Past 9 Months , until this Past week when we upgraded to Fiber.

I did all Basic 101 Troubleshooting and nothing helped. The disconnect happens random and connect back in its Own .