Question Wireless connection slow and unstable

Jinzu

Commendable
Feb 24, 2017
2
0
1,510
The modem is provided by Comcast Xfinity branded
The router is Asus ac1200
The laptop is Toshiba Satellite P55w-c5200x
The wifi adapter is Intel dual band wireless ac 7265
The os is windows 10 x64

The wireless connection provided by the router is slow everywhere in the house. Even located less than 20 feet from the router in the same room. I am located on the second floor, the router is in the third floor, and I get very slow speeds (<3mbps) on a 50mbps connection. Also sometimes there is no internet connection. What should I do to fix this problem?