Happy New Year Everyone.

I've appreciated the information here and have received good advice in the past. Yesterday, I continuously received the following message while shooting with my 7D and 17-55, "Err 01: Communication between the camera and the lens is faulty. Clean the contacts".

I've tried other lens and there is no problem. I don't believe it's the contacts on the body. I've tried cleaning the contacts on the lens with rubbing alcohol, but I continue to get the error message.

I've also notice the error occurs at focal lengths greater than 30mm.

Any help or suggestions is appreciated.

I've read on other sites it may be the IS, but I've have not found any confirmation of the repair that acutally addressed the error message.

Just when I wanted to take advantage of the rebates to get a new lens...