I have a customer running a BM 3.8SP4 server on NW6.0sp5. NAT is on a
cisco router. I have a C2S VPN which works perfectly for my laptop (vpn
client 16 + Novell client 3.9SP3).

I have to give access to a third party who has software on their laptops
to access several other vpns (windows mainly). I can connect using their
login. They got it to work once but now whatever I try they come up with
a "failed receiving DH server public value".

I have had them uninstall and reinstall the vpn client (16), and install
the Novell Client (3.9SP3) with NMAS over the vpn client. I also tried the
vpn client overlayed with the NMAS client from 3.9SP3.

I can't see that there is anything wrong with the setup because it works
for me, but I can't get it to work for them.

Any help gratefully received.