CPU Swich Over Fail

[PhoneStar]

I have inherited a Meridian Option 61C with a release 25.47 and I’m a novice.
Now the problem, during the daily routines at midnight I found this:

DROL000 DAILY ROUTINE BEGIN
CCED LD135 BEGIN 00:08 27/3/2014

CCED219 Cannot SCPU: A stdby net resource(s) has a fault

DROL001 DAILY ROUTINE END
CCED LD135 END 00:08 27/3/2014

*CCED0219 – Cannot switch Cores because the standby net resource has a fault. One of the network shelves has a fault. Use the appropriate overlays to identify.

>LD 137
.stat
IOP 0 ENABLED (ACTIVE) IODUC
IOP 1 ENABLED (STANDBY: S/W STATUS) IOP-CMDU
CMDU 0 ENABLED (ACTIVE)
CMDU 1 ENABLED (STANDBY)
RDUN ENABLED
ELNK ENABLED
SDEV 0 OK (KC VALID)

>LD 135
.stat cni
CNI 0 12 0: remote = group 0 ENBL
CNI 1 12 0: remote = group 0 ENBL

Any help finding the problem would greatly be appreciated

 

[KCFLHRC]

I would push and hold for a couple of seconds on both CPU's at the same time.

 

[PhoneStar]

Push both, okay. I will have to wait on this until I get a go from the bosses.
Thanks