Multi Wan Showing Connection OFFLINE

Hi

We have set up a multi wan setup for our network.

In the IP Settings screen it shows that all devices are connected and working, however in the multi wan screen it shows that one device is offline i.e. the primary device

Interface Network Status Multi-WAN Status Backup Action
em1 Offline Offline Primary
ppp0 Online In Use Backup

We are using version 7 business edition.

I can confirm that the network connection is fine as i have tried to connect a laptop to it without the clearos firewall and it works fine.

Possibly something to do with routes?

Any help would be much appreciated