Deleted a camera, now can't re add it?

I deleted a camera (the reception had dropped off & thought a reinstall would help)

I now can't re add it to my sync module.

It's an older XT2 cam.

It will go through the looking for camera but won't connect.

I've taken the batteries out & also restarted the module

Any ideas??

I deleted a camera (the reception had dropped off & thought a reinstall would help)

I now can't re add it to my sync module.

It's an older XT2 cam.

It will go through the looking for camera but won't connect.

I've taken the batteries out & also restarted the module

Any ideas??