Verifying External Device Access
Topic Last Modified: 2012-06-21
After you deploy Lync Server, you can use the following procedure to verify that devices outside your organization's firewall can access Device Update Web service through the reverse proxy. If this test fails, verify that your deployment is properly configured for external access, and then try this test again.
To verify external access to Device Update Web service
Add an Lync Phone Edition test device to the Device Update Web service on the Lync Server Control Panel.
Connect the test device to a network that is external to your organization’s firewall.
Turn off the test device and turn it back on again, and then sign in to the device. The device will then send an update request to Device Update Web service.
Note
If you do not sign in to the device with a valid user account, Device Update Web service will deny the update request. When this occurs, the device displays a status of be 0x0/401 for a credentials error, and an error is logged in Internet Information Services (IIS) also.
In the audit log, locate the entry for the test device request.
Note
Lync Phone Edition devices can be identified by their Media Access Control (MAC) addresses.
For Lync Server Enterprise Edition, audit log files are located in Logs\Server\Audit\imageUpdates\ folder under the shared updates folder. For Lync Server Standard Edition, the log files are located in %ProgramFiles%\Microsoft Lync Server <version>\Web Components\DeviceUpdateFiles\Logs\Server\Audit\imageUpdates. Each physical server has its own audit logs. You may need to look in more than one log to find the entry for your test device.Verify that the entry exists and that it was generated at the date and time you performed the test.
Note
For details about the audit log information, see Update Audit Log Schema.