Unable to identify stream

[kullek]

I use the public login and not minilogin. My new server has been running great for the past few days. Now everyone else, and myself, are producing this error when choosing the server at server select:

7818 [03.09. - 10:55:20] [WORLD__CLIENT] New connection from 70.xx.xx.xxx:1388
7824 [03.09. - 10:55:21] [NET__ERROR] 70.xx.xx.xxx:1388: Received OP_SessionRequest in ESTABLISHED state (0)
7818 [03.09. - 10:55:21] [NET__IDENTIFY] Unable to identify stream from 70.xx.xx.xxx:1388 before it closed.

Yesterday when this happened, I rebooted the machine and people were able to log in for about an hour, then the above error started occurring again.

This is a linux server (0.7.0 - 989) and it is directly connected to the internet. There shouldn't be any firewall issues. Again, it was working perfect for a few days until this started happening.

Any help is appreciated. Thanks!