Connection failed after 4 retries

[Cagar]

After one night, when I try to join the server it gives me "Connection failed after 4 retries" error.
It also seems that I can't join any of the servers I've been before, or I can't join heavily modded servers. I'm not sure.
I've tried reinstalling gmod, restarting router couple of times, messing with steam cloud-settings...

Any ideas?

AND if you don't know any other solutions, if possible, please reset my character/profile on the server, I want to play that much.

[Sommer]

The error you are getting has nothing to do with your computer.
Get better internet if you want to fix this :-).

[Cagar]

The error you are getting has nothing to do with your computer.
Get better internet if you want to fix this :-).

I have played many many hours already, and never had this problem before. It just started appearing suddenly after last night, and we didn't get a new connection or anything.

[Sweet Bro]

The error you are getting has nothing to do with your computer.
Get better internet if you want to fix this :-).

I have played many many hours already, and never had this problem before. It just started appearing suddenly after last night, and we didn't get a new connection or anything.

This STILL means that there's something wrong with your network or computer.
If you get this problem with other games and other computers, call tech support.

[Catkillerfive]

Did you download/upload something? As when I upload video's to youtube I have 600 ping but I don't have any internet problem's...