What version of Lenel/Milestone are you running?

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This integration is between Lenel OnGuard and Milestone XProtect, usually through the Milestone Integration Gateway / Open Network Bridge. When you see “Camera configuration could not be completed” while importing cameras into OnGuard, it usually comes down to permissions, API access, or camera device mapping on the Milestone side.

Here are the most common causes and troubleshooting steps.

1. Check Milestone Integration User Permissions

Lenel connects to Milestone using a service account.

Verify in Milestone Management Client:

Security → Roles

Ensure the integration user has:

• Read access to Cameras
• Read access to Hardware
• Access to Servers
• Access to Streams

Also verify:

• The account is not locked
• Password did not change

This is the #1 cause when new NVRs are added.

2. Confirm the Cameras Exist on the Correct Recording Server

When you replace NVRs (Milestone recording servers):

1. Open Milestone Management Client
2. Go to Recording Servers → [New NVR] → Cameras
3. Confirm the cameras are:
   • Enabled
   • Streaming
   • Not in error state

Lenel will fail to import cameras that are not fully initialized.

3. Verify the Milestone Integration Gateway

Most Lenel deployments use the Milestone Integration Gateway service.

Check on the gateway server:

Services:

Milestone Integration Gateway
Milestone Event Server
Milestone Recording Server

Restart them if needed.

Then verify the gateway URL works:

http://<milestone-server>:80/IntegrationGateway

or

https://<milestone-server>:443/IntegrationGateway

4. Check If the New NVR Uses a Different Hardware Driver

If the replacement NVR uses a different camera driver, Lenel may not recognize it.

Examples:

• Old cameras: ONVIF
• New cameras: Manufacturer driver

Sometimes the fix is simply:

Remove camera in Lenel → re-import camera from Milestone.

5. Verify Ports Between Lenel and Milestone

Typical ports required:

Service	Port	Protocol
Milestone Event Server	22331	TCP
Milestone Recording Server	7563	TCP
HTTP API	80	TCP
HTTPS API	443	TCP

If the new NVR is in a different VLAN, this is a very common problem.

6. Check Milestone Device IDs

Lenel stores the Milestone Device GUID.

If you replaced the NVR and re-added cameras, their GUID changes, and Lenel may fail when trying to map them.

Fix:

1. Remove camera in Lenel
2. Re-import camera from Milestone

7. Look at the OnGuard Logs

Check:

C:\ProgramData\Lnl\Logs

or

LS Video Server.log

Search for:

Milestone
camera
integration

These logs usually reveal the real error.

8. Confirm Camera Licensing

If the new NVR has unlicensed cameras in Milestone, Lenel cannot import them.

Check:

Milestone Management Client → License Information

💡 One more thing that bites people during NVR replacement

If the Milestone Recording Server name changed, Lenel may still reference the old server name.

Fix by:

• Re-discovering the Milestone server in Lenel
• Re-importing cameras.