erwin Data Modeler cannot Connect to erwin Mart Portal on Host Machine

erwin Data Modeler (DM) cannot connect to the erwin Mart Portal (MS) on an erwin Mart Portal host machine. This happens because the client application version is different from the erwin MS version. To counter this issue, do the following:

1. Open Internet Explorer.
2. Click Internet options.
3. Go to the Security tab.
4. Set security level to low.
5. Click Sites.
6. Add http://machine-name:18170/MartAdmin/ or http://ip address:18170/MartAdmin/
7. Try to connect the Mart from erwin DM with IP address or machine name.