Not able to add dimmer devices

Have tried to add a couple SwitchLinc dimmers with the same result:

eb 20, 2017, 1:41:22 PM
PowerLinc Linking - entered discovery linking mode (240 seconds)
PowerLinc Linking - received module button pressed from 43.14.D2
PowerLinc Linking - syncing PowerLinc links (address 3D.98.94)
PowerLinc Linking - . . adding: INSTEON plc link to controller 43.14.D2, flags 03, group 01, data 00 00 FF
PowerLinc Linking - . . adding: (not added -- probably already exists)
PowerLinc Linking - sync complete
PowerLinc Linking - PowerLinc links updated
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
PowerLinc Linking - sending engine version request to 43.14.D2
PowerLinc Linking - adding PowerLinc to module's database
Error Linking - device failed to send engine version information
Error linking failed
PowerLinc Linking - entered discovery linking mode (240 seconds)
PowerLinc Linking - received module button pressed from 43.14.D2
PowerLinc Linking - exited linking mode

[jay (support)]

Replied to your email:

That is normally a sign of signal noise that’s causing the communication between the device and your PowerLinc to fail. Since you’re having issues with multiple switches it may be that the signal issue is on the same circuit as the PowerLinc. Check the signal troubleshooting page for suggestions on how to diagnose signal issues.