GPG 2.1.0/Win32: keyserver lookup problems

[Robert J. Hansen]

There's an odd problem with 2.1.0 on Win32.  Steps:

1.  Uninstall existing gpg4win.
2.  Install the new experimental 2.1.0 Windows installer.
3.  Try to pull a key from a keyserver such as:

=====
C:\utils>gpg --keyserver pool.sks-keyservers.net --recv-key d5078b4f
gpg: keyserver receive failed: Input/output error
=====

I made no changes to my gpg.conf file nor to my keyring.  I've confirmed 
that I have network connectivity and I can hit 
http://pool.sks-keyservers.net.