Articles on: All About Same Item Multiple Boards

Enterprise Deployment & Firewall Whitelisting Guide

Overview


If you’re using Same Item Multiple Boards (SIMB) within a large organization or corporate network, your company’s firewall or network security policies may block the app from loading.

This article explains what to look for and how to resolve it.

Symptoms

  • A red circle with a slash icon appears on the SIMB tab/view
  • The app view loads as a blank page or fails to initialize
  • The app works on personal/home networks but not on corporate WiFi or VPN

Why This Happens

Many enterprise organizations use corporate firewalls that block external app domains by default.

SIMB communicates with external servers to sync items between boards in real-time. If your company’s firewall blocks these connections, the app cannot load or function.

This is common at large organizations and is not a bug — it’s a network configuration issue.

Solution: Whitelist SIMB Endpoints

Ask your IT or network team to whitelist the following domains:

Your IT team should allow HTTPS (port 443) traffic to these domains.

How to Request Whitelisting

You can send the following message to your IT department:

Subject: Whitelist Request for Monday.com App — Same Item Multiple Boards

Hi [IT Team],
We’re using a Monday.com marketplace app called “Same Item Multiple Boards” that requires access to external domains.

Could you please whitelist the following domains on our corporate firewall/proxy:

https://simb-frontend-prod-nxcub.ondigitalocean.app/(HTTPS/443)
https://simb-prod-api-qgobi.ondigitalocean.app/ (HTTPS/443)
*.pioneera.io (HTTPS/443)

These are required for the app to load within Monday.com and sync item data between boards. The app is an officially listed Monday.com marketplace application.
Thank you!

Verification

After your IT team confirms the whitelist is in place:


  1. Clear your browser cache or open an incognito window
  2. Navigate to your Monday.com board
  3. Open the SIMB app view — it should load normally
  4. If the issue persists, try a different browser to rule out cached DNS


Still Having Issues?


If whitelisting doesn’t resolve the problem:

  • Confirm with IT that the whitelist is applied to your specific network segment or VPN
  • Check if your organization uses a web proxy that requires separate configuration
  • Contact us at support@pioneera.io and we’ll help troubleshoot with your IT team


Updated on: 15/02/2026

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