I need help getting my LC III on the internet.

I setup internet sharing on my Vista laptop, and it works fine on my iMac.

I put iCab on the LC III and plugged in the ethernet cable and when i try to use the 'net i get a "Network error #-23009"

I looked it up and discovered:

error -23009 insufficientResources: 64 TCP or UDP streams are already open.

Any idea what that means? restarting didn't help.