I have two older Win 2003 R2 servers acting as DNS, named DNS1 and DNS2. I have two Windows 10 Pro, hard-wired, same network, latest patches. One is a laptop and one is a desktop.
The desktop can ping and access shares on DNS1 and DNS2. DNS1 and DNS2 can also ping the desktop PC. All works fine here.
The laptop cannot ping DNS1 and DNS2, nor can DNS1 and DNS2 ping the laptop. It says the request could not find the host. This happens whether the laptop is connected via ethernet or wifi.
The laptop can ping/access everything else (every other PC is newer than 2003 R2). The issue is only between the Win 10 laptop and the two 2003 DNS servers.
When I run ipconfig /all on the laptop, I noticed that NetBIOS over Tcpip is always disabled (even if I force enable it) on the laptop, but enabled on the desktop. Also, while I am still running a WINS server, the laptop is not showing this, while the desktop is.
I've read that SMBv1 is deprecated in recent versions of Windows 10, but what I don't understand is why the desktop PC is working fine but the laptop is not - even though both are fully updated. Thanks!