Hi, can anyone help me?

I have some problems with voobly for 4 months, I can not play because after starting the multiplayer game and playing about 20 minutes, I get the error message: "voobly disconnected".
I tried:
1. reinstall voobly.
2. Reinstall AOE.
3. Open UDP port 16000
4. Restart the router.

when I'm watching online game from other persons. i can be watching the game with out problems.

so i discard router problems...

The last month happened from one floor to another, so it should not be the company that provides me with the internet ... right?

Thanks for the help :D