Still stubbornly refusing to give up even though others claim it isn't possible to get single static on the Business Hub:
Compared to last time I tried, today I was given a different set of IPs
Last time:
IPv4 Address. . . . . . . . . . . : 80.235.149.51(Preferred)
Default Gateway . . . . . . . . . : 80.235.149.49
Today:
IP Address: 82.35.50.221
Gateway: 82.35.50.209
L2TP to any of the IPs mentioned didn't work

Sad times.. getting pretty annoyed with the superhub dropping off the LAN. Any sneaky method of going back to the pre-modem only firmware as that one didn't seem to have stability issues.