Here’s a proper, technical review of the error:
Sometimes, corporate firewalls or ISP-level proxies intercept HTTPS traffic and replace the certificate. and try to connect. If it works on cellular but not on home Wi-Fi, your ISP or home router is interfering. globalprotect vpn failed to verify certificate
The logs will show the exact error (e.g., expired certificate, hostname mismatch, untrusted issuer). Here’s a proper, technical review of the error: