Same with me the link provided works, I cleanred my firefox cache and web.airdroid.com still does not work. I'm on the east coast US and my dns is 192.168.1.1
I am having the same problem lately, and now cannot connect at all. Come on, AirDroid, this should be a no brainer for us to use. Finding work arounds is not acceptable!
192.168.1.1
Back to working this AM for me.
It was also very odd that there were also a couple of dozen spam posts in this support forum for a day or two that were removed.
Someone asleep at the wheel perhaps?