Apologies if this posting is in the wrong forum - its my first. I have a Samsung Galaxy S2 and am trying to connect it to my TalkTalk Broadband. I am not technical. My IPAD,Dell,TV, HTC,PC all connect without problems to the Router (DSL 2780) and without me having to make any adjustments. The SGS2 however, refuses to connect to the Router - yes, I have checked the Router passwords etc.. I just get " Authentication Error" message. I was able to connect the SSG2 to a Hot Spot I created on the HTC phone - so, the phone is obviously ok. There must be a problem with the settings on the Router - however, all other devices connect without a problem. ANy advice would be welcome.