> For the complete documentation index, see [llms.txt](https://help.dscout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.dscout.com/interview-studies/conduct-an-interview-session/troubleshooting-firewall-issues.md).
# Troubleshooting firewall issues
If your firewall or network check is failing before an interview session, the reason could be your system’s firewall. Your firewall should allow outgoing UDP (user datagram protocol) to connect to your internet from Google Chrome or Microsoft Edge and allow return traffic in response.
Test on a different environment
If you’re not passing your firewall check or having connectivity issues, you might be on a bad network. Try switching over to a more secure connection or use a different computer and try again.
**Using a VPN?** This may be the culprit as well. If possible, disable your VPN to see if this allows you to join the session using your usual device + WiFi network.
**Pro tip:** Are you using a company-issued or school computer? Such computers may have an extra layer of security installed and might be blocking your ability to establish a strong connection for your interview session. We recommend using your personal computer for your upcoming interview session.
Temporarily disable your firewall
If you’re using an antivirus or firewall software, please work with your company's IT team to ensure that Chrome or Edge and Dscout are trusted or allowed by these programs. If seeking help from your IT team isn't an option, send a note to our team () with the name of your firewall and/or anti-virus software or chat with our team; while we won't be the experts on your computer's security configuration, we'll be happy to help you research a solution!
Alternatively, you could temporarily disable your antivirus or firewall to see if this resolves the issue. You can simply disable your firewall and refresh your interview session page to see if you're able to pass the firewall check. Here are some general instructions for disabling your firewall on Mac and Windows computers:
* [Windows](https://www.lifewire.com/how-to-disable-the-windows-firewall-2624505)
* [Mac](https://support.apple.com/guide/mac-help/change-firewall-preferences-on-mac-mh11783/mac)
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