Disconnecting while crossing borders 4X4

[Sevathen 0]

So I am running a 4X4 map on a local server I have in my home. For me it runs fine, I can cross borders without any issues and so can my roommate. When my friends connect they are fine while they are in each server but they crash and have to manually reconnect whenever they cross a border. Each zone has it's own port, game port and Seamless Data Port. The Ports are all spread out to avoid conflicts and I have verified all the port forwarding on my router. Any Ideas Folks?

[Kero 9]

Are you using DNS name server?

[Sevathen 0]

1 hour ago, Kero said:

Are you using DNS name server?

No I'm not using a DNS name server, running everything directly