Cisco WAN :: 2911 Stops Responding After A Period Of Time

Nov 2, 2011

I have a Cisco 2911 router with 4 T1 connections.  Two are set as a multilink and the other two are for two other locations.  The router will run fine, but after a month I cannot ping the gigabit ethernet 0/0 interface.  I would have to manually reboot the router to get it to respond again.  Before I noticed a lot of interface discards which would shutdown the 2911 and a manual reboot would be needed, but for this time it isn't the case.  Where would I start with this the memory and cpu usage are fine.
 
Here is the config:
Current configuration : 2905 bytes
!
version 15.0

[Code].....

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archive
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The archive command works with the execution of the write mem, but with the "time-period" doesn't work.This is the show version of my 3845: 
 
NTP_Server#SH VER
Cisco IOS Software, 3800 Software (C3845-SPSERVICESK9-M), Version 12.3(14)T7, RELEASE SOFTWARE (fc2)
Technical Support: [URL]
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Thu 23-Mar-06 01:59 by pwade

[code].....

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