I can't watch videos on my iPhone 4S?

I can't seem to watch videos on my iPhone. When I try to watch a video on YouTube for example it just says 'playback error tap to retry'. None of the videos I watch load, I have this problem general videos on the internet, not only on YouTube and also on Instagram.

So far I have tried resetting my network settings and rebooting my phone but nothing seems to work. I don't know what could be the problem.

Did you by chance update the iOS recently? I updated and since then I'm having the same problem. I get a new problem with every update.

  • Why can't i watch HD videos on my iPhone 5s? I recently got this phone and moved into Verizon. When i went on youtube i tried watching videos on HD and it wouldnt let me. Is this a verizon network thing or is it the phone its self?
  • Why can't I watch videos taken with my iPhone on my computer? I took some videos today with my iPhone 4s and I tried to watch them on my computer but it doesn't work. When I click on it, it just shows a black screen but I can still hear the sound. I tried to delete my quicktime and download the new version but nothing changed. I've also tried to watch the videos on iTunes but there wasn't any difference. I don't have a Mac by the way.
  • Why can't I watch videos on my iPhone using my home Wi-Fi? I can do anything on my iPhone, except watch videos when i use my home Wi-Fi. I use to be able to watch videos, and this only just started happening a few days ago. I thought it might be flash player or something, but I can watch videos using other Wi-Fi. I'm not sure that its my Wi-Fi, because I tried watching videos on my old iPod touch, and I could. I have an iphone 4 (not 4s) and help would be appreciated.
  • WHY CAN'T I WATCH VIDEOS ON MY IPHONE, I CAN'T TAKE IT ANYMORE I downloaded the new YouTube app from google. On my old iPod touch the videos would load fine but on my new iPhone they won't even play 10 seconds before it freezes and won't play! I reload the video and app and it still won't play, I even deleted it and installed it 10 times and still the same problem! Please help I really don't know what to do (plus these videos are checked to be able to watch on mobile devices)!