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3640 shuts down after adding Second T1 wic

I have a 3640 running 12.0(1). In that I have a network module that can take 2 WIC cards. Whenever I try to add the second WIC the other interfaces go down..(Serial and FastE) I have ruled out hardware and lack of memory. Has anyone else experienced this. I am thinking an upgrade of the IOS maybe?

3 REPLIES
Bronze

Re: 3640 shuts down after adding Second T1 wic

12.0(1) should support another WIC. Perhaps there’s a bug but I couldn’t find anything on Bug Toolkit. Could be a bad WIC card too but you said you eliminated hardware problems. Talk to Cisco?!?

New Member

Re: 3640 shuts down after adding Second T1 wic

If your existing WIC card is in port 1 and you're inserting a new WIC in port 0, your config for your original WIC card will "move" to the new one. In other words, int serial 0/0 is "the first WIC in slot 0" regardless of actual port number. Add a WIC into a lower port number, and the original WIC is now serial 0/1 with no configuration.

Could this be what's happening?

Mick.

Re: 3640 shuts down after adding Second T1 wic

The working card has been in both port 1 and 0 when the other card was added with the same results. Thanks.

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