How to prevent SSL_ERROR_RX_RECORD_TOO_LONG error in web-browser during OpenVPN connection open?

I have an OpenVPN connection to my company's network on my home computer, and every time when I'm trying to connect to the one of websites I get SSL_ERROR_RX_RECORD_TOO_LONG error on both work and home computers.
I can't understand why such error occurred on my home computer, because the same site opens well with closed OpenVpn.
In fact, web-services also show me the same IP-address, no matter whether OpenVPN connection opened or closed, so I guess web-traffic don't pass through VPN-server.
How can I solve SSL_ERROR_RX_RECORD_TOO_LONG error on my home computer without disconnecting from OpenVPN every time?