OpenShift: How to connect to postgresql from my PC

Question

I have an openshift app, and I just installed a postgresql DB on the same cartridge.

I have the postgresql DB installed but now I want to connect to the DB from my PC so I can start creating new tables.

Using port forwarding I found my IP for the postgresql db to be

127.3.146.2:5432

under my webaccount I see my Database: txxx User: admixxx Password: xxxx

Then Using RazorSQl I try to setup a new connection

keeps coming as user password incorrect.

If I try and use the local IP to connect such as the 127.0.0.1 then I can connect fine.

How can I resolve this issue, all I am trying to do is connect to this DB so that I can create new tables.