Secure website login error

[extravert]

I am getting an odd error when attempting to log into my banks secure web site.
I am receiving a page that says there is an invalid security certificate. I am guessing this is my firstspot certificate as I have not applied for one.
When I press go to website anyway I am receiving a page that says I am already logged in and I am free to browse.
However I am not able to browse as I am not authenticated.
No issues with non secure sites.
Secure sites work fine if I load a non secure site and log into firstspot first.
Any ideas ?

Ref:
https://www.bnz.co.nz/ib/app/login

[alan]

First, it is normal that you see a security warning if you access a https page initially. This is just the nature of captive portal as FirstSpot needs your approval to decode the URL for the https page.

Let's go back to the simplest case first. If you go to a http page initially (e.g. yahoo.com), is everything normal? It is very important we make this case works well first.

If you still have difficulties, please post your:
1) ipconfig/all output (issued in both client and server)
2) config.ini file
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