adhoc network off of MBP

[powerman]

I have set up an ad hoc network for my apple tv. I am having trouble with renting movies. I can not rent a movie that is 1g or larger. I have a good internet speed. I can rent smaller shows but when I try to get a movie, it has the general error message. Is the ad hoc network able to send this much info, or is there another problem that could be happening.
Also I can not rent on Itunes. I get an error message 500 which states rgnTooBigErr Bitmap would convert into a region greater than 64 KB. Is this maybe a permission problem. That is what Itunes support keeps telling me but there fix does not work.
This has me really confused. If you have any suggestions please help.

 

[powerman]

the ad hoc network can handle it but my isp had a 1 gig limit on its download. They repeatedly told me there was not one but it was there. Apple figured it out for me. I had a very good experiance with apple support.