I have tracked this down to whenever I attempt to save a K2 Item with a video using the Embed option of the Video tab, the component will not save, and I get a 404 Error with the following:

 


Not Acceptable
An appropriate representation of the requested resource /administrator/index.php could not be found on this server.

 


If I use the Video Provider option, it works fine. Also if I use "{video}shortcode{/video}" within the Content tab, it will save and show the video appropriately.

 

I have a few pages that have already been saved with the Video Embed option, and I wanted to make changes to them.  They will not allow me to save any changes, even if I remove the Video Embed.

 

I have recently upgraded the following Joomla Components with hopes to repair a bug or corrupt file somewhere. The error is still there, however.  Any help is greatly appreciated, thank you!

 

Joomla 1.5.23

K2 2.4.1

AllVideos 3.3

SimpleImageGallery Pro 2.0.5

Do you have sef turned on? if so disable it and try again

Sorry for the delay. I did have standard Joomla SEF using mod_rewrite, but when turned off, I still get the same error.  I was worth a check though, thank you.