OpenVPN problem

[newvier21]

Hello everyone! I need help with OpenVPN.
Problem is going about 2-3 weeks since trying to make OpenVPN work properly on Keenetic and Mikrotik
Once OpenVPN isn't working because off "TLS Error: TLS handshake failed" i trying to fix that with guides that i ever can find.
After that OpenVPN on Keenitc can't connect and appear even more failure:

• VERIFY ERROR: depth=0, error=unsupported certificate purpose: C=XX, O=XX, OU=IT, CN=ca
• OpenSSL: error:1416F086:lib(20):func(367):reason(134)
• TLS_ERROR: BIO read tls_read_plaintext error
• TLS Error: TLS object -> incoming plaintext read error
• TLS Error: TLS handshake failed
• Fatal TLS error (check_tls_errors_co), restarting
• Service: "OpenVPN0": unexpectedly stopped.

Here is the configuration on Keenetic

• client
• dev tun
• proto tcp
• remote 9X.XXX.XXX.XXX 1194
• nobind
• persist-key
• persist-tun
• <ca>
• -----BEGIN CERTIFICATE-----
• XXX
• -----END CERTIFICATE-----
• </cert>
• <key>
• -----BEGIN ENCRYPTED PRIVATE KEY-----
• XXXX
• -----END ENCRYPTED PRIVATE KEY-----
• </key>
• <auth-user-pass>
• username
• password
• </auth-user-pass>
• remote-cert-tls server
• verb 3

Does it even possible to make Mikrotic and Keenetic working properly with each other?
I hope i described my problem normaly and can get help with that problem

P.S.Configuration was taken from: https://habr.com/ru/post/269679/
(2tun)

Edited December 12, 2022 by newvier21