# Installed device does not appear in XMS

## Issue

> After installation, the device does not appear in the **Activate agent** tab of the **Xopero ONE Management Service** (**XMS**).

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## Resolution

{% hint style="danger" %}
If your device does not appear in the **Devices** tab after assigning a license, **first verify the configuration of local worker, cloud worker, and feature worker licenses**. You can check these settings by navigating to ⚙️ **Settings** > **Advanced** > **Workers**.
{% endhint %}

#### Method A

For domain-joined devices, the **agent** may take up to 10 minutes to start. Wait for this period, and if the **agent** still does not appear in [**XMS**](#user-content-fn-1)[^1], check the configuration.

#### Method B

1. Open the **config.json** file located in the backup agent installation directory:
   1. For **Windows:** `C:\ProgramData\Xopero ONE\Xopero ONE Backup&Recovery Agent`
   2. For **Linux:** `/opt/XoperoONEBackupAgent`
2. Check whether the `ServiceUrl` parameter correctly points to your **Xopero ONE Management Service**. If the address is incorrect, update it and try again.

[^1]: Xopero ONE Management Service