I have an 857 running on an ADSL2+ connection at a customer site. At first it was running IOS 12.4(15)T and it would not sync at all.
I down graded the IOS to 12.4(6)T10 and the unit got sync and all seemed fine. Now after periods of use the router will lose sync and we have to power cycle it to get it to connected again. The router doest look like it has crashed as the CD light is still flashing. However when I look in the logs after reboot there is no indication that int a0 went down.
I have been reading other comments on EE and people are suggesting I need to upgrade the firmware to 4.0.0.018.
My question is how can I see what firmware is currently running on this unit. I have run sh ver and get the following output:
Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(6)T10, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 17-Jan-08 23:08 by khuie
ROM: System Bootstrap, Version 12.3(8r)YI1, RELEASE SOFTWARE
xxx-xxxxx-data uptime is 1 hour, 41 minutes
System returned to ROM by power-on
System restarted at 09:11:15 UTC Wed Dec 23 2009
System image file is "flash:c850-advsecurityk9-
any suggestions welcome!