If you see this error message, please temporarily disable your VPN, antivirus, and firewall software. If that helps, please add Grammarly to the software’s allowed list:
If you’re using Grammarly in a corporate environment and you cannot disable your antivirus and firewall software or add Grammarly to this software’s allowed list, please ask your IT administrator to do that.
Note: Grammarly’s desktop app for Windows doesn’t currently support proxy, so if you're using a proxy, please try disabling it and let us know if that doesn't help. If you are not sure whether you use a proxy, please follow the steps in this article.