Site to Site OpenVPN tunnel windows file share issues

[suicidegybe]

I have setup a site to site open VPN tunnel. I am able to ping devices on either remote network whether I am on site A or B. I am looking to map a drive from site B to device on Site A so I can do offsite backups. The problem is I am unable to connect to the windows network file shares located at site B from Site A. I am able to acess site A file share from Site B but that is not what I am looking for. Any ideas?

[viragomann]

Possibly the Windows host firewall is blocking the access.