POP3 connection diconnected

Hi all,

I have just upgraded Exchange 2013 in SP1 and from that moment, my POP3 is not working anymore.

Service is running, settings seems correct. Outlook gives always an error 0x800CCC0F

If I try a telnet session on port 110, my client is disconnected directly.

I have enabled the poplogging but folder stays desperatly empty even after POP3 service restart and several connection tried.

Need help.

Thanks in advance

Kroepoek