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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.

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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

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Prerequisites

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

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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

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Find Your Dashboard Information

Before contacting 20i support, gather the required information.

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Dashboard IP Address

1

Navigate to Server Information

In your MainWP Dashboard, go to MainWP > Info > Server.
2

Locate Server IP

Find the Server IP field and note the IP address.MainWP Server Information page showing the Server IP field
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.

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MainWP User-Agent

MainWP uses this User-Agent string for all requests: 
Mozilla/5.0 (compatible; MainWP/4.0; +http://mainwp.com)

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Contact 20i Support

1

Open a support ticket

Contact 20i support through their help desk or live chat.
2

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
3

Wait for confirmation

20i support will update their WAF rules. This typically takes a few hours.
4

Test connection

After 20i confirms the whitelist is in place, attempt to connect or reconnect the child site from your Dashboard.

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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)
Thank you.

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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