CupixWorks Support Center

Troubleshooting Network & SSL Upload Errors

Troubleshooting Network & SSL Upload Errors


If you receive an error message that says your network security is blocking an upload or download, check to see if your network uses software for filtering network traffic. It might be a VPN, firewall, or other security software.

Here are some ways to check:

Connect App

  • Try using a different WiFi network.
  • Check your network speed at and make sure you have ~20mbps upload speed. Anything slower than this can cause SSL timeouts.

Capture App

  • Try using a different WiFi network.
  • Switch WiFi off in your mobile device settings and connect with your cellular network.
  • Read this article on how to fix SSL errors on an iPhone:
  • Check to see if you are using a VPN in the mobile device settings:
    1. On the iOS mobile device’s home screen, tap on the Settings icon.
    2. Tap on General.
    3. Tap on VPN & Device Management.
    4. Change the setting to Always Allow.

If nothing above helps, contact CupixWorks support. We may need your IT department to whitelist the domains below.

Domain Whitelist

We recommend using a wildcard rule for CupixWorks domains:


We also recommend whitelisting the following domains:

Note: Domains marked with an asterisk (*) do not require you to add each and every sub-domain.

Network Ports and Protocols

  • All communication with Procore is accomplished using the HTTPS and Transport Layer Security (TLS) protocols.
  • All communication happens over port 443.
  • Real-time updates in certain client applications occur over the WebSocket Secure protocol, also on port 443.
Matt is the author of this solution article.

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