I've been doing some experiments with the OpenAFS on Windows 7 loopback adapter problem.
Configuration: Windows 7 Ultimate, 32-bit, all updates OpenAFS 1.5.75 A VPN using Microsoft software to another machine (64-bit Server 2008 Standard in my case) A wireless USB adapter Changes to default O/S & OpenAFS install: On the Loopback adapter property page, check two boxes: Link-Layer Topology Discovery Mapper I/O Driver & Responder Save and reboot. Don't know if the reboot is really necessary but that's what I did. After logging in, Kerberos, etc... OpenAFS works as indicated by the copy of a file, dir, etc. from the console prompt. Create a VPN connection and immediately try the copy, dir, etc. and see that OpenAFS has stopped working. Beware of misleading results because of caching. Wait 4-5 minutes. Repeat copy, dir, etc and see that OpenAFS now works. Install a wireless network adapter. In my case, it was a Linksys WUSB540GC Rev 3. The install CD didn't work for Windows 7 so I needed to visit the web site to get a driver for it. As soon as the device showed up in "ipconfig /all" I tried OpenAFS again and it worked just fine - no delay needed. If someone has the time to play with this, can they reproduce these results and perhaps try some additional tests? Mickey.
