I have had the same problem, could open anything except the home page. By chance I re-typed URL for

I have had the same problem, could open anything except the home page. By chance I re-typed URL for home page as https:// etc instead of http://etc and Firefox popped up with a few security type messages re certificates etc. Ignored warnings and accepted certificates and the page now works OK as http://.

Perhaps an expert could let us know the correct way around this problem but this worked fine for me.