> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mainwp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Resolve connection issues with 20i hosting

> The 20i WAF may block MainWP Dashboard connections. Contact 20i support to whitelist your Dashboard IP address or MainWP User-Agent. Find your Dashboard IP on the Info > Server page.

20i hosting uses a Web Application Firewall (WAF) that may block MainWP Dashboard connection requests. The solution requires contacting 20i support to whitelist your Dashboard's IP address or User-Agent.

## What You'll Learn

* Identify when 20i's WAF is blocking connections
* Find your Dashboard IP address and User-Agent
* Request a whitelist from 20i support

## Prerequisites

* MainWP Dashboard installed and activated
* A child site hosted on 20i
* Your Dashboard IP address

***

## Symptoms

You may be experiencing 20i WAF blocking if:

* Connection attempts time out or fail
* Error message states "MainWP Child plugin not detected"
* Connection test returns a 403 or 406 status code
* Other child sites connect successfully but 20i-hosted sites don't

***

## Find Your Dashboard Information

Before contacting 20i support, gather the required information.

### Dashboard IP Address

<Steps>
  <Step title="Navigate to Server Information">
    In your MainWP Dashboard, go to **MainWP > Info > Server**.
  </Step>

  <Step title="Locate Server IP">
    Find the **Server IP** field and note the IP address.

    <img src="https://mintcdn.com/mainwp/vt3GV9YSpiQ1gEJI/images/troubleshooting/20i-hosting-fix.png?fit=max&auto=format&n=vt3GV9YSpiQ1gEJI&q=85&s=b8b0a483f885bc54d8402a13ab7992c6" alt="MainWP Server Information page showing the Server IP field" width="878" height="356" data-path="images/troubleshooting/20i-hosting-fix.png" />
  </Step>
</Steps>

<Note>
  If the Server IP shows a local address (like 127.0.0.x or 10.x.x.x), contact your Dashboard hosting provider to get the external IP address. Alternatively, check your hosting control panel for the server's public IP.
</Note>

### MainWP User-Agent

MainWP uses this User-Agent string for all requests:

```text theme={null}
Mozilla/5.0 (compatible; MainWP/4.0; +http://mainwp.com)
```

***

## Contact 20i Support

<Steps>
  <Step title="Open a support ticket">
    Contact 20i support through their help desk or live chat.
  </Step>

  <Step title="Request whitelist">
    Ask them to whitelist your MainWP Dashboard in their WAF. Provide:

    * Your Dashboard IP address
    * The MainWP User-Agent string
    * The child site domain that needs to connect
  </Step>

  <Step title="Wait for confirmation">
    20i support will update their WAF rules. This typically takes a few hours.
  </Step>

  <Step title="Test connection">
    After 20i confirms the whitelist is in place, attempt to connect or reconnect the child site from your Dashboard.
  </Step>
</Steps>

***

## Sample Support Request

You can use this template when contacting 20i:

> Hi,
>
> I'm trying to connect my WordPress site \[your-child-site.com] to my MainWP Dashboard management system. The connection is being blocked by your WAF.
>
> Please whitelist the following:
>
> * IP Address: \[Your Dashboard IP]
> * User-Agent: Mozilla/5.0 (compatible; MainWP/4.0; +[http://mainwp.com](http://mainwp.com))
>
> Thank you.

***

## Self-Check Checklist

* [ ] Noted your Dashboard IP address
* [ ] Copied the MainWP User-Agent string
* [ ] Contacted 20i support with whitelist request
* [ ] Received confirmation that whitelist is in place
* [ ] Successfully connected the child site

***

## Related Resources

* [Troubleshoot Connection Problems](/troubleshooting/potential-issues) - General connection troubleshooting
* [Connection Test Status Codes](/troubleshooting/connection-test-results-status-codes) - Interpret error codes
* [What Port and User-Agent Does MainWP Use](/troubleshooting/what-port-and-user-agent-does-mainwp-use) - Technical details