# DCV Server License Warning

Some network security devices can interfere with Computle Licensing. Common issues include DNS resolution and port blocking. By default, Computle Licensing is checked every five minutes.

***

**Network Resolution**

Ensure that Computle Machine can resolve the following DNS records:

```
dcvlicensing1.computle.net
dcvlicensing2.computle.net
```

***

**Overwrite DNS Records with IPs**

If the DNS resolution is working as expected, and you are unable to obtain a license, you can modify the registry entries to use direct IPs instead.

1. As an Administrator, launch PowerShell ISE.
2. Paste the following code into the PowerShell script pane.

```sh
$licensingServers = @(
    'dcvlicensing1.computle.net',
    'dcvlicensing2.computle.net'
)

$resolvedIPs = @()

foreach ($server in $licensingServers) {
    try {
        $ipAddresses = [System.Net.Dns]::GetHostAddresses($server)
        foreach ($ip in $ipAddresses) {
            $resolvedIPs += "5053@$($ip.IPAddressToString)"
        }
    } catch {
        Write-Host "Failed to resolve $server" -ForegroundColor Red
    }
}

$licenseValue = $resolvedIPs -join ';'

$registryPath = 'Registry::HKEY_USERS\S-1-5-18\Software\GSettings\com\nicesoftware\dcv\license'
$registryKey = 'license-file'

New-ItemProperty -LiteralPath $registryPath -Name $registryKey -Value $licenseValue -PropertyType String -Force -ErrorAction SilentlyContinue

Write-Host "Registry updated successfully with license value: $licenseValue" -ForegroundColor Green
```

3. Click Run or F5 to start the process.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.computle.com/troubleshooting/streaming-agent/nice-dcv/dcv-server-license-warning.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.