Hello all, We have two TC chassis, one has 14 DSP's w/2 ARC's and the other has 6 DSP w/1 ARC. I am running all ISDN PRI's and all DSP's are at 2.0.60, 4.1.59-6 ARC's and the HiPer NMC's with 6.2.17. The DSP firmware of the DSP's ranges from .49 to .54. My problem is that we get sporadic Management Bus Failures - "in both chassis" and on different cards. When this happens the card re-boots itself and of course, drops those 23 online. The re-boots do not follow any sort of pattern and I went a couple of weeks without any and now have had 3 or 4 within the past week. I have switched DSP cards and PRI's. The newer version 2.0.19 does address the management re-boots but only for the .54 and .55 firmware. Anybody have or seen anything similar...??? Any other ideas..??? This is really driving me crazy and BTW: I received another this morning on SLOT 2 in the 218 chassis. ........... Phil@lakefield.net (920) 758-2211 Phil Nass - General Manger @ Lakefield Tel I have enclosed a portion of my alarm server text: Authentication Failure 0 INFORMATIONAL OPERATIONAL 01/01/00 21:05:08 206.40.97.218 12/31/69 16:00:01 10005 Authentication Failure 0 INFORMATIONAL OPERATIONAL 01/01/00 21:04:43 206.40.97.218 12/31/69 16:00:01 10005 6; Yellow Alarm (remote OOF) cleared on Slot 12, DS1 Channel 1 0 INFORMATIONAL OPERATIONAL 01/01/00 19:42:25 206.40.97.218 01/01/00 11:46:24 429050 5; Watchdog Timeout in Slot 12, Channel 0 0 MAJOR NONOPERATIONAL 01/01/00 19:42:12 206.40.97.218 01/01/00 11:46:11 429007 4; Yellow Alarm (remote OOF) on Slot 12, DS1 Channel 1 0 INFORMATIONAL OPERATIONAL 01/01/00 19:41:58 206.40.97.218 01/01/00 11:45:57 429022 3; Management Bus Failure in Slot 12, Channel 1 0 MAJOR NONOPERATIONAL 01/01/00 19:39:26 206.40.97.218 01/01/00 11:43:25 429008 2; Watchdog Timeout in Slot 6, Channel 0 0 MAJOR NONOPERATIONAL 01/01/00 17:33:48 206.40.97.218 01/01/00 09:37:47 429007 1; Management Bus Failure in Slot 6, Channel 1 0 MAJOR NONOPERATIONAL 01/01/00 17:42:59 206.40.97.218 01/01/00 09:37:43 429008 Authentication Failure 0 INFORMATIONAL OPERATIONAL 01/01/00 16:13:19 206.40.97.218 12/31/69 16:00:01 10005 Warm Start 1 INFORMATIONAL OPERATIONAL 12/29/99 18:03:44 206.40.97.219 12/31/69 16:00:01 12/29/99 18:26:15 10002 3; Yellow Alarm (remote OOF) cleared on Slot 1, DS1 Channel 1 1 INFORMATIONAL OPERATIONAL 12/29/99 16:44:06 206.40.97.219 04/27/29 04:14:35 12/29/99 16:44:12 429050 2; Watchdog Timeout in Slot 1, Channel 0 1 MAJOR NONOPERATIONAL 12/29/99 16:43:50 206.40.97.219 04/27/29 04:14:19 12/29/99 16:44:12 429007 1; Management Bus Failure in Slot 1, Channel 1 1 MAJOR NONOPERATIONAL 12/29/99 16:41:28 206.40.97.219 04/27/29 04:11:54 12/29/99 16:42:48 429008 - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.