bmf

the malfunctioning 2474's load is incandescent and the switch works fine locally, there are six other dual mode switches in this room ... all other switches work fine and are linked by the ISY994

i'm receiving an error linking a new switch (2474dwh) ... see level 3 event log below ... i've done an "airgap" reset twice with no luck ... the switch is in a ten foot radius of 7 other successfully linked switches... i'm using UD firmware rev v,4.4.6 ... there are >70 switches and devices all working perfectly in my home ... any ideas what may be wrong? thanks in advance, dan Thu 05/26/2016 07:10:56 AM : [3d e7 22 ] Added to list of devices to link to ISY Thu 05/26/2016 07:10:56 AM : [iNST-TX-I1 ] 02 62 3D E7 22 0F 0D 00 Thu 05/26/2016 07:10:56 AM : [iNST-ACK ] 02 62 3D.E7.22 0F 0D 00 06 (00) Thu 05/26/2016 07:10:57 AM : [iNST-SRX ] 02 50 3D.E7.22 39.00.97 23 0D 02 (02) Thu 05/26/2016 07:10:57 AM : [std-Direct Ack] 3D.E7.22-->ISY/PLM Group=0, Max Hops=3, Hops Left=0 Thu 05/26/2016 07:10:57 AM : [iNST-TX-I1 ] 02 62 3D E7 22 0F 10 00 Thu 05/26/2016 07:10:57 AM : [iNST-ACK ] 02 62 3D.E7.22 0F 10 00 06 ID-REQ (00) Thu 05/26/2016 07:11:06 AM : [iNST-TX-I1 ] 02 62 3D E7 22 0F 10 00 Thu 05/26/2016 07:11:06 AM : [iNST-ACK ] 02 62 3D.E7.22 0F 10 00 06 ID-REQ (00) Thu 05/26/2016 07:11:07 AM : [iNST-SRX ] 02 50 3D.E7.22 39.00.97 23 10 00 ID-REQ (00) Thu 05/26/2016 07:11:07 AM : [std-Direct Ack] 3D.E7.22-->ISY/PLM Group=0, Max Hops=3, Hops Left=0 Thu 05/26/2016 07:11:07 AM : [iNST-SRX ] 02 50 3D.E7.22 01.24.42 83 01 65 (65) Thu 05/26/2016 07:11:07 AM : [std-Broadcast] 3D.E7.22-->01.24.42, Max Hops=3, Hops Left=0 Thu 05/26/2016 07:11:07 AM : [3D E7 22 0 ] Calibrating engine version Thu 05/26/2016 07:11:07 AM : [iNST-TX-I2CS] 02 62 3D E7 22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 Thu 05/26/2016 07:11:07 AM : [iNST-ACK ] 02 62 3D.E7.22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 06 (00) Thu 05/26/2016 07:11:16 AM : [iNST-TX-I2CS] 02 62 3D E7 22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 Thu 05/26/2016 07:11:16 AM : [iNST-ACK ] 02 62 3D.E7.22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 06 (00) Thu 05/26/2016 07:11:25 AM : [iNST-TX-I2CS] 02 62 3D E7 22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 Thu 05/26/2016 07:11:25 AM : [iNST-ACK ] 02 62 3D.E7.22 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 06 (00) Thu 05/26/2016 07:11:29 AM : [3D E7 22 0 ] Failed to add device, reason 9 Thu 05/26/2016 07:11:29 AM : [All ] Writing 0 bytes to devices ISY-Events-Log.v4.4.6__Thu 2016.05.26 07.11.45 AM.txt