HWC Error: Wrong User For Device when connecting to Relay Server

Hello experts,

I am trying to connect/activate my BB and Android Simulators to a relay server (Backend: SMP), but always receive an error in the HWC log: Wrong User For Device. The Application Connection status for the corresponding user remains "Pending Activation" and the HWC can not connect to the SMP.

Here are my configurations:

HWC Connection Properties(Android):

Servername: nts-eu-crmgw

Server Port: 80

Farm: nts-eu-crmsup.msg

User: AndRelay

Activation Code: <Code>

Protocol: HTTP

URL suffix: /ias_relay_server/client/rs_client.dll/%cid%/tm

Relay Server(nts-eu-crmgw)

• IIS 7 on Windows Server 2008 x64
• log files saying that connection to RSOE was established successfully
• When trying to connect through HWC the following log entry will be inserted several times:
  • <3980.3948.F1B1S1R0> New request for new session from MobileOffice

SMP Server(nts-eu-crmsup)

• RelayServer
  • Host: nts-eu-crmgw
  • HTTP Port: 80
  • URL suffix: /ias_relay_server/server/rs_server.dll
• RSOE
  • MBS Farm: nts-eu-crmsup.msg
  • RBS Farm: nts-eu-crmsup.rep
  • Logs:

    • <UpChannel-0000> Successfully connected to relay server: nts-eu-crmgw:80

      <DnChannel-0000> Successfully connected to relay server: nts-eu-crmgw:80

• Standard Ports 5001, 2480 are used
• Version 2.1.3
• Application Connection for User AndRelay:
  • Servername: nts-eu-crmgw
  • Port: 80
  • Farm ID:nts-eu-crmsup.msg
  • Applicaton ID: HWC
  • Security Config: Admin
  • Domain:
  • Activation code: <Code>

I would appreciate any hints leading to a resolution of this problem.

Thanks in advance.