I couldn't get my 411 app to work with epc, so I changed it to what I had my 8310 set to (wap.voicestream.com) and it works fine. All my other waps worked with epc though.
edit : and this is why I should read the whole thread before replying. sorry for the repost.
As with others, mine was set to the "epc" APN out of the box. When I ran into some of the issues with YouTube videos hanging, I read a couple of posts suggesting that I change to the old wap.voicestream.com APN -- and considered it. But while I let the thought percolate a bit, I made a point of using YouTube's WAP interface (I had been using the regular site), and for whatever reason, I now found that I could browse and watch a couple of dozen videos with absolutely no issue at all -- still using the new "epc" APN.
I'd be interested in seeing if we could get real info about the differences. Anyway - mine seems to be working fine now, using the "epc" APN.
I know this has been answered alot but i have the same problem also, when i go to the youtube site it says i have an old javascript or flashplayer and i should download another one....
i got the mobile youtube site to work, but for some reason i tried watching a video 2 differnt times and both those times my phone restarted and the black dial comes on? Help Please!