$ cd src & sudo -S openconnect -protocol =gp my_vpn_host \ -authgroup = "China_GTWY" \ -user = 'my_user_name' \ -csd-wrapper =hip_report.py \ -dump -vvv POST =tmp&clientVer =4100&clientos =Mac Attempting to connect to server 1.1.1.1:443 Connected to 1.1.1.1:443 SSL negotiation with my_vpn_host Server certificate verify failed: signer not found Certificate from VPN server "my_vpn_host" failed verification. Few days before, I was able to log in my company's VPN, but now I cannot log in.