Updated in comments, may be a hub issue.
I've been using a Kwikset 888 (z-wave) for several years with no issues. I noticed yesterday that the lock was no longer responding to requests from the hub. Sure enough, it just didn't seem to be communicating. I replaced the batteries (though the motor was moving strong) to no avail, and then tried rebooting the hub. Nothing.
I ran a z-wave repair and it failed on three nodes...including the one associated with the lock. The hub and lock are close (and always have been), so I figured I'd factory reset the lock, run a z-wave exclude, and then re-add it. Unfortunately, when I go into inclusion mode and hit the pairing button, it never pairs.
Anything I should try before simply concluding that the z-wave radio in this lock has failed and I need to replace it?