XML response has no "auth" node

[Cary Robbins]

Attempting to connect to a VPN server yields the following error: XML
response has no "auth" node

>From the looks of it, it seems like maybe it's in some sort of redirect loop.

Any clues on how we might be able to resolve this issue?

% openconnect vpn.foobar.com:443
POST https://vpn.foobar.com/
Connected to x.x.x.x:443
SSL negotiation with vpn.foobar.com
Connected to HTTPS on vpn.foobar.com
Got HTTP response: HTTP/1.0 302 Found
GET https://vpn.foobar.com/
Connected to x.x.x.x:443
SSL negotiation with vpn.foobar.com
Connected to HTTPS on vpn.foobar.com
Got HTTP response: HTTP/1.0 302 Found
GET https://vpn.foobar.com/
SSL negotiation with vpn.foobar.com
Connected to HTTPS on vpn.foobar.com
Got HTTP response: HTTP/1.0 302 Found
GET https://vpn.foobar.com/my.policy
SSL negotiation with vpn.foobar.com
Connected to HTTPS on vpn.foobar.com
XML response has no "auth" node
Failed to obtain WebVPN cookie