@Kevin_Z - Not tested with another cable (I can do that); The distance between the router and my PC is pretty long btw. I would say between 15 and 20 metters (due the path inside the walls in my...

@Sunshine Thanks for your answer. I did the following test: 1 - ~1 hr of test using a network cable test device (testing every single wire in the cable) in both ends of the cable >> 100% success rate...

I'm having this issue with LAN CABLE beeing disconnected from my router time to time. Tested my computer directly with my ISP router and everything works fine also tested with my old router and...