NAV 2009 R2 Build 32012

I need to implement Navision server for RTC, but small success. Steps:
1. Created VM (WS 2008 R2) and install NAV 2009 R2 from installation media - with NAV Server
2. Service installed and run with NETWORK SERVICE account (DynamicsNAV)
3. Edited configuration xml in Service directory to change SQL Server and database to my test database (service account mapped to this database and added as user with SUPER permission)
4. Restarted service DynamicsNAV
5. Local RTC works perfectly
6. Remote RTC can not connect due to error Login failed for user <domain name>\Anonymous. Afterwards I tried to add SPN for service DynamicsNAV, but I can not do that, because I didn't see this service in AD console (firewall is off)
7. I had read, that can help when SQL Server and NAV Server service bot run under the same domain account. Then I changed accounts for SQL Server service and NAV service to the same administrator account - no success
8. I tried to install SQL Server 2008 R2 on VM with NAV Server - no success

All accounts are in the same domain

What's wrong? What's to do?
I am able to do TeamViewer session to help to investigate my environment.

Thanks in advance