I use the standard Internet browser, but now that you mention it I have just tried chrome and it's the same.
So right now I have no problem connecting to TD on my laptop, but can't access it with a mobile signal from either browser. Yet both browsers will load up any other page so isn't an internet connection issue. Other days it will be totally normal.
It's not the end of the world, I don't need TD on my phone that badly, just wondered if it was anything obvious that I was missing, and if anybody else experienced it.