Hey guys, I recently built my own computer and all was working fine until recently. Whenever I join a game of for example League of Legends, the ping will go super high 10 seconds into the game and say "Attempting to reconnect" and sometimes tends to freeze the league client, however when I speedtest the ping says it's fine. It sometimes crashes YouTube also if I skip half way through the video, the browser will stop responding. However I don't have this problem for other multiplayer games and browsing the internet is fine and videos do tend to load properly and not buffer as long as I don't mess with the duration of it. I'm not sure whether it's an internet issue or a hardware issue, however my modem is outside and a genuine struggle to connect it to ethernet, any help would be much appreciated
Specs -
Windows 10
Processor: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz, 3001 Mhz, 4 Core(s), 4 Logical Processor(s)
MSI GeForce GTX 1050 Ti 4GT OC 4GB
Corsair Vengeance LPX DDR4 Red (2x4GB)

Specs -
Windows 10
Processor: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz, 3001 Mhz, 4 Core(s), 4 Logical Processor(s)
MSI GeForce GTX 1050 Ti 4GT OC 4GB
Corsair Vengeance LPX DDR4 Red (2x4GB)