don't connect with tplink vr1210

[giancai]

hello everyone.....
i have a tplink vr1210 fttc router and i have configured openvpn on the router....i have connect router with a ddns and i tried also with ip static public. i have generate certificate, i have enable server on the router, i have saved, i have exported.
after i have copied the file .ovpn into folder c:\programfiles\openvpn\config and i have launch the connection, but i don't connect.
why? can you help me?
this is the link of faq on router

https://www.tp-link.com/it/support/faq/1750/

the error that i have from openvpn is: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.

thanks again

[giancai]

hello everyone. it's possible help me with my problem?

thanks advance