Cisco Router is freezing

[baxta2712]

   Hi, I have problem at one of my branch, every morning when workers are coming and turning on their PC-s Cisco(871) router freezes and when I they unplugging and plugging on of the LAN interfaces cable (no matter witch) the problem is solved.

   I replaced router, and I asked workers during the working day to restart their PC-s but problem did not repeat during the working day any more. it repeaters every morning

   Does anyone nave idea how to solve this problem?

   Thank you in advance

[Amit Singh]

Hi,

Please capture the following from the router when this happens :

1. Show process cpu

2. Show process memory

3. Show logs

4. Show interfaces from the router ports LAN/WAN side.

5. Please let us know the network topology as well.

Are you running an IPSEC VPN back to your HQ?

Cheers,

-amit singh

[baxta2712]

In HO we have C2821 which is connected to branches routers C871/881 with GRE tunnels this is network topology, when router is frozen I cannot view logs because it does not responding but when it is not frozen any more (we do not rebooting router) there is only one log, some of the interface went down and up because we do only this. Today I change 871 to 881 and hoping that This is better router and will not freeze.

[Leo Laohoo]

I replaced router

With another one runng the same IOS?  Try upgrading the IOS.