Hi everyone, I have tried everything from buying a new router to re-setting/syncing ect A few weeks ago YouTube stopped playing movies on both of our iPhone 3GS' however this is only a problem on my home wifi. On 3G and on other wifi networks we are able to play YouTube videos. One phone has OS 4.3.3 (updated after the problem) the other 4.1 Each phone is with a different network provider Wifi Router is Airport Express (just bought it hoping it would solve the problem) previous router was a D-Link DIR-601 YouTube shows error "This movie could not be played" while using the app Through Safari (m.youtube.com) it just tries to load forever Through Safari Desktop version (youtube.com) there is a message on the top of the screen "You need to update your Adobe Flash Player to watch this video" I have talked to my internet provider and there is no problem there, Apple says the router is configured properly, every setting has been changed and changed again...Im ready to smash the phones... any suggestions as to what else I could do? Nether phone has been jailbroken. Please help, I'm completely out of ideas.