Since we replace ISP and Router, we can't access remote SMB folder in Linux server.
The attempt always fails with an error code 0x80070035 when I try from Windows PC.
I assume that there is an issue on Samba configuration in Linux server.
We use Samba 4.2.10 on CentOS server.
8 freelancers are bidding on average $139 for this job
Seem like the main problem came from ISP router, so your router must allowed port 139 and 445 to let those computer can communicate by SMB protocol. Another thing may be those computer stay in difference VPN.