For several years, stopped actively playing with my home-automation system and laws of increasing entropy have hit to where switches are working only based upon internal links and eisy/PLM controller wasn't doing much of anything. The eisy can query and control devices but most programs were not working etc.

Realized today that all of the Insteon devices do not have the PLM in their link tables, so the eisy is not getting status updates when switches/dimmers are toggled. Not sure when this happened but probably had some issue when either migrating from 994i ISY to eisy or when a PLM died some number of years ago. (Maybe I executed a "Delete PLM" instead of "Restore PLM" when swapping out dead PLM).

Since the eisy/IoT tables also don't have PLM listed in the device links, restore devices/compare links doesn't resolve the issue. Haven't dug into PLM links table yet to see if/what it's missing. I verified could remove/delete individual device and then get the PLM link back into table, but REALLY don't want to do this for every device - especially keypads with many scence/programs. I have probably ~100 Insteon devices (every light switch in the house, ceiling fans, lamps, sensors, etc) so manual rebuild would be extremely painful. I also have no idea when this problem was introduced so don't have known/good backup to restore to.

Is there a way to fix the eisy/device link tables to add back in PLM link without haven't to manually remove/add back each device?

Edited 10 hours ago10 hr by bdyster
typo

If you replaced your PLM and never did a PLM restore, then there won't be many shortcuts. If your old PLM is still defined in IoX then you might try a replace procedure. This restores the links in the new PLM's link table, and then updates every device with the PLM's new device id. However battery powered devices then need to be restored individually, by putting them in linking mode manually.

Depending upon the PLM link table, most likely need to bite the bullet and do manual system rebuild. So would it be recommended to delete PLM/manual reset of PLM - to start with clean slate wrt PLM/device links before manually remove/add each device?
Ideally would like to keep scenes/programs framework in place and avoid complete clean-slate rebuild from scratch.

Possible that you didn't power cycle your ISY after replacing the PLM. The ISY reads the PLM address on powerup/reset. If you replaced the PLM and ran a restore modem (PLM) without the powercycle, the ISY would still have the OLD PLM address - it wrote OLD information to your devices.

The Delete Modem command is normally used to remove the PLM address from all of your Insteon devices. Since your current PLM address is not in the device(s) link table(s), I'm not at all sure what the command would do.

Instead, proceed as you would if replacing the modem normall:

• Backup your ISY - just because...

• Power cycle the ISY to make sure is has your current PLM address (or verify using the show plm info tool).

• Perform the "Restore Modem (PLM)" function. The ISY will write changes to your PLM and all of your attached Devices. Your link tables should update with the current PLM address. Remember to put your battery devices into linking mode.

• Assuming things work and you verify that your current PLM address is written to the devices - backup your ISY again. Give it a novel name to indicate this backup has the NEW PLM.

Edited 5 hours ago5 hr by IndyMike