I've noticed a problem on my iPhone 4 that seems to be getting worse. When I try to watch YouTube videos over wifi they're either very slow to load or just stop loading altogether. On 3G the videos load very quickly. It's frustrating because I like watching the videos in better quality, but it's gotten so bad that I have to tuen it off and watch them on 3G. Any ideas on how to fix this?
It happens with every network and it seems to work a little better from the native app compared to embedded videos, but the problem is there either way.
Then there is something wrong with your phone. Since using the webapp instead of the native app I have noticed a vast improvement of my YouTube experience.
Try a soft restart. If that doesn't work then try a restore from backup. If it still does not work restore as new and if that even does not work take the phone in