SnowyLessy

FINALLY!!!  the problem solved... 

The Cryptopro module "improved compatibility with Microsoft products" breaks the CURL utility. Enpass uses that utility for sending requests to web services eg: activation/vault sync/pass check etc. so you need to fully remove cryptopro or just that concrete module for back enpass to live.

My personal choise is move cryptopro inside VM

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Модуль криптопро "Расширенная совместимость с продуктами Microsoft" что-то ломает внутри системы и перестает работать CURL, enpass делает запросы в сеть именно через этот пакет. Если отключить модуль не удаляя криптопро, все начинает работать, мне этот модуль требуется и я решила проблему радикально, полностью удалив криптопро из системы и установив его в hyper-v VM на этом же компьютере.

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This post is the result of a long history of debugging on this topic, and I decided to highlight this case as a more specific issue related to incompatibility and probably a specific country.

But browser says that certificate is correct

I found how to enable logging system, and there is:

Info: 1705736847 [HTTPS]  CURLE_SSL_CONNECT_ERROR try again 
Info: 1705736847 [HTTPS]  ****Unable to verify server certificate ***** 
Info: 1705736847 [Enpass::HttpClient::performQuery]  License server API Response ::    URL :  https://license.enpass.io/api/v1/user/signin/
Info: 1705736847 [Enpass::HttpClient::performQuery]  License server API Response ::    Status code :  35
Info: 1705736847 [Enpass::HttpClient::performQuery]  Response Body :  SSL connect error

p.s. For other users: Settings -> Advanced -> Logs -> "Enable" checkbox 

Today I tried to use an https proxy, it has no effect.

I did some research, installed Wireshark and tried to catch some requests. Of course, without MITM I can't read the packets, but I can check if the application is trying to send them. And yes, it happened! Moreover, he gets some answers. At the same time, I checked the main problems with SSL; the browser opened the activation URL correctly, without errors.

I think the error is somewhere near (or inside) the "no_internet_connection" exception, something like: "i got wrong answer from server / i can't read it / or something well throw exception" and the closest exception is "no_internet_connection"

I have the same problem. It starts with a vault sync error, I decided to reinstall the app and now I can't activate it with the error "No internet connection". Of course I have an internet connection, I tried turning off the firewall but it doesn't help. 

I think this is the reason of fist issue with vault sync error...

Details:

OS: Windows 11 Pro (22H2) Build 22621.2283 [Windows Feature Experience Pack 1000.22662.1000.0]

Antivirus and firewall: default windows defender and default windows firewall

VPN: Installed outline, but not connected to the server (if connected it dows not work too)