I have a similar situation where the red light starts flashing after a minute or two then both bottom lights remain on solidly. Interrnet connection light flashes for a bit before the red light starts flashing and then cuts out.
I also don't have a vodafone line connection (No copper broadband available here) but it has worked fine for over a year and cut out a couple of weeks ago. The unit does not reset when the reset button is held in (have hels it in for upo to 5 minutes) Any suggestions? Is the issue one I should take up with my wireless internet provider?