Activesync using different port

[ToddGivens]

Hey all, I can successfully sync with exchange on the internal network when I have the port configured as the default, port 80. To allow remote access, I need to change the port number, since we are using port 80 on a different server.

When I change the port, activesync fails, internally and externally. I know the port is configured correctly on the firewall, because remote users can access it using OWA.

Are there any limitations of changing the port for activesync?

Thanks, Todd