@Joseph-TP After contacting my local support center. They suggested me to downgrade my firmware to version 1.35 instead of 1.36 which my router updated to automatically. It's been a few days and It...

Today again the port gets capped at 10mbps. Now Swapping port to LAN2 gives me 1000mbps again. This keeps happening everyday.

@Joseph-TP When it shows 10mbps on router interface it shows 10mbps on Pc LAN interface and capped at 10mbps speed aswell. When suddenly it goes back to 1000mbps on router interface it also changes...

@terziyski I swapped out my LAN cable to new UGreen CAT 6A cable already. The factory one provided isnt long enough.

I bought an Archer c6 v4 which is my main and only router. I have been using it for a few months and had no issues with Ethernet speeds and all. Suddenly for a last month I noticed my lan link speed...