The writing of links was going fine, when suddenly everything started failing. Hese is part of the log:
A Event Viewer
Thu 05/20/2010 11:32:38 PM : [standard-Direct Ack][08.54.9A-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
Thu 05/20/2010 11:32:38 PM : [iNST-ACK ] 02 62 08.54.9A 0F 2B AA 06 PEEK (AA)
Thu 05/20/2010 11:32:38 PM : [iNST-SRX ] 02 50 08.54.9A 05.E8.50 2B 2B 00 PEEK (00)
Thu 05/20/2010 11:32:38 PM : [standard-Direct Ack][08.54.9A-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
Thu 05/20/2010 11:32:38 PM : [iNST-ACK ] 02 62 08.54.9A 0F 29 05 06 POKE (05)
Thu 05/20/2010 11:32:38 PM : [iNST-SRX ] 02 50 08.54.9A 05.E8.50 2B 29 05 POKE (05)
Thu 05/20/2010 11:32:38 PM : [standard-Direct Ack][08.54.9A-->ISY/PLM Group=0] Max Hops=3, Hops Left=2
Thu 05/20/2010 11:32:38 PM : [iNST-ACK ] 02 62 08.54.9A 0F 2B AB 06 PEEK (AB)
Thu 05/20/2010 11:32:47 PM : [iNST-ACK ] 02 62 08.54.9A 0F 28 0F 06 SET-MSB(0F)
Thu 05/20/2010 11:32:59 PM : [8 54 9A 1 ] Link 10 : 0FA8 [A23305E850FF1901] *Failed Writing [A23305E850FF1901]
Thu 05/20/2010 11:32:59 PM : [8 5A 4B 1 ] Using engine version i1 for 'Kitchen Under Cabinet'
Thu 05/20/2010 11:32:59 PM : [8 5A 4B 1 ] Link 0 : 0FF8 [A20005E850FF1F00] Writing [A20005E850FF1F00]
Thu 05/20/2010 11:33:21 PM : [8 5A 4B 1 ] Link 0 : 0FF8 [A20005E850FF1F00] *Failed Writing [A20005E850FF1F00]
Thu 05/20/2010 11:33:21 PM : [8 6B 4C 1 ] Using engine version i1 for 'Washer/Dryer Light Switch'
Thu 05/20/2010 11:33:21 PM : [8 6B 4C 1 ] Link 0 : 0FF8 [A20005E850FF1F00] Writing [A20005E850FF1F00]
Thu 05/20/2010 11:33:42 PM : [8 6B 4C 1 ] Link 0 : 0FF8 [A20005E850FF1F00] *Failed Writing [A20005E850FF1F00]
Thu 05/20/2010 11:33:42 PM : [9 98 27 1 ] Using engine version i1 for 'Blue Room KP On/Off'
Thu 05/20/2010 11:33:42 PM : [9 98 27 1 ] Link 26 : 0F28 [E20405E850000004] Writing [E20405E850000004]
Thu 05/20/2010 11:34:03 PM : [9 98 27 1 ] Link 26 : 0F28 [E20405E850000004] *Failed Writing [E20405E850000004]
Thu 05/20/2010 11:34:03 PM : [9 AF 6C 1 ] Using engine version i1 for 'Patio Lights'
Thu 05/20/2010 11:34:03 PM : [9 AF 6C 1 ] Link 0 : 0FF8 [A20005E850FF1F00] Writing [A20005E850FF1F00]
Thu 05/20/2010 11:34:24 PM : [9 AF 6C 1 ] Link 0 : 0FF8 [A20005E850FF1F00] *Failed Writing [A20005E850FF1F00]
Thu 05/20/2010 11:34:24 PM : [A D7 6C 1 ] Using engine version i1 for 'Kitchen Keypad On/Off'
Thu 05/20/2010 11:34:24 PM : [A D7 6C 1 ] Link 4 : 0FD8 [A21905E850FF1F06] Writing [A21905E850FF1F06]
Thu 05/20/2010 11:34:45 PM : [A D7 6C 1 ] Link 4 : 0FD8 [A21905E850FF1F06] *Failed Writing [A21905E850FF1F06]