The problem results from having the SonicWall VPN client manager software running in the background. Even without an active VPN connection, the client seems to interfere with WinPCap. Merely exiting the client manager program clears up the problem. It is not necessary to uninstall anything.
Many many thanks to Gianluca Varenni for examining the debugging output and suggesting the solution.
-- James Garrison Athens Group, Inc. mailto:[EMAIL PROTECTED] 5608 Parkcrest Dr http://www.athensgroup.com Austin, TX 78731 PGP: RSA=0x92E90A3B DH/DSS=0x498D331C (512) 345-0600 x150
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