Cannot connect to NAV 2016 client

Hello All,
I installed a local copy of NAV 2016 in my computer for testing and development.

I can connect to the developer / object explorer, but I cannot connect to the NAV 2016 client.

I added the firewall port of 7046.

My connection string is like this :

Database Server: IOT\IOT2
Database Name: IoTNAV90Test
SQL Edition: Enterprise 64 bit
Server Instance: (this is blank)

When I try to connect using the client.

I do the following string: IOT2:7046/IoTNAV90Test

and I keep getting the attached error message
I have a service running named like this : MicrosoftDynamicsNavServer$DynamicsNAV80




What am I doing wrong ? I spend all day reading and I still cannot connect.