[vpn-help] 2.1.7 win7x64 negotiation timeout, only works with one adapter

[Josh Endries]

Hello,

Just today I ran into this bug. I can only seem to use the VPN client
if I am using my wireless adapter. Using my LAN adapter causes the
negotiation timeout problem, consistently and reproducibly. I do have
a virtual wifi miniport adapter but currently, and as far as I know,
it's always been disabled.

When I initially installed the VPN client, I was using the wireless
adapter. Only recently did I run a wire to plug in. However, the VPN
won't work when using the Local Area Connection adapter... I did a
little initial testing with WinDump:

* With both adapters enabled, there is no traffic to my VPN endpoint's
IP on *either* adapter.
* With just the LAN enabled, there is no traffic.
* With just the wireless enabled, there is traffic.
* Switching adapters (enable/disable) with the VPN client running
doesn't affect the client's operations (I thought maybe it "cached"
the list of adapters).
* Aside from the IP address, the routing table is identical whether
using LAN or wireless adapters.
* Microsoft ISATAP Adapter #6 comes and goes with either/both wireless
and LAN (if either are enabled, or one is enabled, it's there; if both
are disabled, it's gone). Maybe this has to do with one of the other
VPN clients I have, I dunno.
* Disabling the Windows Firewall doesn't help; still no packets are sent.

This suggests to me a bug in the VPN client software, since nothing is
getting sent (or a bug with Windows, or their interaction). Anything
else I should try?

Josh