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Webcast-Catalyst9k
New Member

Undefined Port Adapter problem

I recently upgraded the IOS on a 3640 router, just to find that the FastEthernet interfaces vanished upon reboot. The version was 12.1 -I then tried version 12.09 and ALL my interfaces vanished with the error "undefined port adapter in slot 0"

What's up with this?

1 REPLY
Cisco Employee

Re: Undefined Port Adapter problem

Pl. make sure that 3640 is running the correct ios which will support the Fast Ethernet card. Here is the url which will help you the minimum ios needed for that

http://www.cisco.com/cgi-bin/front.x/Support/HWSWmatrix/hwswmatrix.cgi

Pl. let us know the part number (which will be starting from NM-***). Thx..Tejal

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