Erika-L

Hello, everyone! Finally, I've found the solution. So ESET does not block L2TP connections. Moreover, ESET should not block any connection if you configured one correctly. @itman, you were absolutely right: I've changed VPN provider and L2TP works perfectly nowadays. Thank you!

itman, thank you for your reply. However, now it's obvious, that ESET doesn't block L2TP. I've formatted my HDD and reinstalled Windows. Even now L2TP doesn't work and error 720 still appears. So I think, the problem is not in my PC at all. I do hope to solve the issue with VPN provider. Otherwise, I will use PPTP. Anyway, thank itman and Marcos for your help. If one day I will find any solution, then I will update this topic.

Dear Marcos, Unfortunately, pausing or disabling the firewall does not solve the issue. The same error still appears. I'm using Interactive mode and ESET always asks to allow VPN connection. So could ESET actually block L2TP? I mean ESET firewall is very smart. Why should it allow PPTP but block L2TP? Dear itman, Thank you for the article. I've added the Windows firewall rule and ESET too. However, it did not solve the issue. The same 720 error appears.

Good day, everyone. Could you be so kind and give me some advice, please? I'm using PPTP VPN connection (standard Windows 7 client) and it works perfectly fine. However, when I change settings to L2TP VPN - its connection and authorisation process goes fine till the moment of "registering computer on the network". Then Windows error 720 appears. I've also tried to use OpenVPN client. Anyway, it makes no difference. My VPN provider insists, that ESET Firewall may block L2TP connection because of this (quote from OpenVPN log file): Is it possible, that ESET IE allows PPTP, but blocks L2TP? Do you have any solution to solve the issue? Let me know, please. Thank you in advance.