particles

Hello I just built my pc and my monitor has these weird dot particles and i have no idea how to fix it I tried both a dp and an hdmi cable but nothing changed. Drivers are installed. Any ideas...

Hi I have a Netgear R7000, for me the connection is stable and good for my brother it is unreliable and is constantly dropping. He drops speeds on his PS4 and PC. Speedtest shows that down speed for him is 0.30. When I test I get 40+ He has one wire going to room, then into a mini switch. I...