Disabled the windows firewall after that able to connect at first time, after disconnecting the VPN users not able to connect getting L2TP same error. Enable/ restart the IPSEC Enable/ restart the IPsec L2TP Uninstalled and reinstalled all WAN drivers. Restarted the client device. Checked the windows recent updates and uninstalled the recent patches Please advise us to resolve the client vpn connectivity issues.
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