as the error message indicates (and posted here multiple times) you cannot post an iframe in the post… its a huge security risk for any user to do so (nothing to do with media) – thus its stripped out…

besides, you should be using the object method or more preferably the wp oembeds method (paste in the url – that’s it)…  you can control the size of the oembeds on wp – settings – media…

Thanks again for the prompt reply. 

I searched the forums and found some of the other posts you reference but they were all from people trying to use the embed option. I was attempting to use TinyMCE (at the time I thought it made a difference) 

I Googled the oembeds and checked the setting you mentioned. Everything is working. Thanks for the help. 

I’m always nervous purchasing support memberships as they are often a waste of money. I’m definitely impressed and will recommend your software in the future. 

thanks for the kind words! glad its resolved and you are off and running… let us know if you need anything else…