VPN problem with Nortel Contivity Client V04_86.102

[Danyal]

Hi,

I am having a strange problem while VPN-ing using NCC V04_86.102 over
verizon FIOS. First, it would not connect at all so I went into my
router settings and enabled IPSEC. After this I was able to establish
VPN connection but after I disconnected and tried again I got "Login
Failure: Bad Proposal Syntax". I have deleted the router setting and
added them again, rebooted my router but still I can't get rid of this
problem.

I would really appreciate if anyone is able to provide any help on
this one.

Thanks
Danyal