JP1 Remotes

I have a Slingbox M2 at my parent's house connected to a Cox Cisco minibox. I have that setup working fine with a file I found on this site. They are moving and looking at switching to Uverse. Has anyone had any issues finding remote files for Uverse boxes to work with a Slingbox?

My brother currently has Uverse at his house and has an Arris VIP2250 box for his Uverse. I am sure it will be either the same or something similar. Here is the remote file that I found. I think it would work if they get the same box.

Thanks in advance.

That should work fine, come back here for help if you have problems.