zero guid

[Jerry Zimmerman van Woesik]

Hi,

I know this issue has been adressed many of times, but I'm a bit 
frustrated by it.
I run a server on my home computer (dedicated linux server 24x7 online).
Everybody who connects gets a nice and shiny GUID....... except for me.
Ofcourse I'm connecting from either my local network or through a loop 
back in the router also to this server.
Meaning : I can either connect to a local IP adress of the external ip 
adress. Neither way provides me with a GUID.

How can I troubleshoot this problem, or is it something out of my hands. 
For me it's strange that is only affects me, and nobody else.

Best regards
B4M (NL)