I have a client running a B315 Rural Broadband device, we just requested a Static IP which solved the problem of port forwarding and now that is working well.
Speed is a lot better than anything else available to them BUT
The wifi is on but when they connect to it they just get a No Internet Access type message from their devices.
I suspect the issue is that DHCP is turned off in the router as they have a local Windows Server doing the DHCP, perhaps the Router isn't forwarding the packets correctly from the Wifi interface back via the LAN ??
Anyone else seen this or better yet solved it - I'd normally just bang in a better A/P anyway but their office is small enough that if it worked the Wifi would be more than enough.