Hyper-V External Access

Hey,

I transferred one of my Linux server to a VM in Hyper-V running server 2012 r2.

The Host OS runs IIS and windows firewall is down, people has no issues accessing their website on the IIS Server externally. So I setup the VM In Hyper-V and forwarded port 50 "I use for apache" and the teamspeak ports.

For some reason no one externally can access the TeamSpeak or the apache server. Any ideas on where I could start? I am new with Hyper-V but not with virtualisation and this is the first time I see this. The VM it self has his own IP set static by the DHCP server.

Thanks for any answers

Cheers,

Pierre