2811 router rebooting

[cciebrij70]

Hi

Seeing very strange behaviour my 2811 Router is sitting behind  3650 switch, when the link between switch and router is trunk the router start rebooting itself, to test i changed to access mode then I can see ip address of router on cdp neig de or else not seeing ip address of router.

can someone advice me

BR

Bhushan

[paolo bevilacqua]

Update IOS.

[cciebrij70]

I m running below ver, do u thing can be flash and ram issue

Version :

Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(22)T5, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2010 by Cisco Systems, Inc.

Compiled Wed 28-Apr-10 06:18 by prod_rel_team

[paolo bevilacqua]

As above.