Can't connect to any machines in browser even though ovpn is set up

Hi there…Can you please try to help me out with this??..ok…i figured out how to connect to the HTB VPN through a proxy and sorted the connection issue by amending the actual .ovpn file by adding the proxy info ; So basically now I CAN connect to my account and check that I AM ACTUALLY CONNECTED TO THE HACKTHEBOX VPN network and I can also ping the to the machines on the terminal; however i just still cannot access any machine!!! I mean when I type the IP address (of the HTB machine) on the browser I get an ‘‘access denied’’ from the proxy I am using …is getting frustrating…and I can’t relly get across anything useful on the web on how to sort out this issue…
ny sort of info that could point me to the right direction would be appreciated
thanks a lot