JGibbons

Understood and will do. It may take my 24 hours because I am traveling. Thank you.

Thank you. Yup. Saw all of this on the forums. I have. To add I tried to reset both switches then "Link Management" -> "Start Linking". It finds the devices, just give the link table error at the beginning of this post i.e. "Cannot determine device link table address." Also tried "Link Management" -> "New Insteon/A10/X10 Device" - added the address in lower case.

Mr. Bill and Brian - thank you. Please elaborate what is a module with an RF receiver in it mean. Is this a PLM option? Would Non-Insteon RF device interfere like a TV with BlueTooth and Wireless Internet? Or does the distance to the PLM matter? Background: This is the only RF devices on my home automation network. Everything else is still using the 50 year old x-10 protocol. The #2474DWH dimmer switches still work synchronizing without the PLM in a Group. Thank you for the education in advance Jon

Howdy - trying to add two #2474DWH dimmer switches. They used to work flawlessly and then stop responding. I deleted them from the PLM and then factory reset each of them twice. Each time I go to add I receive an error: Cannot determine device link table address. I look through the forums and tried what I found. Any ideas appreciated. Thanks Jon