Network issues

On the start of the league i have been faling feel ms 500, while F1 was constantly showing 7 ms, not changing, after dealing damage to mobs it went off after 2-3 seconds, kept constantly dying, not progressing anything.

I am clueless where the issue is, tried everything, changing servers, reseting router, changing network modes, etc. nothing works.

Any advice is highly appreciated.

I have the same issue. I connect, have around 20 MS, run to the first map and after 10 sec it starts to climb to 10 - 13 sec and then I disconnected.
I can log in back immediately and have the same 20-25 MS, run to the map get to 10-15 or die that ever happens first.
I have a 1.5 Giga fiber connection, so that's not the issue....