Windows 10 cannot connect to windows 7 computers

netbiossmbwindows 10windows 7

Newly installed (by full reset) Windows 10 Pro computer cannot connect to Windows 7 computers and Debian SMB servers on the network.

It can see all computers and servers on the network (all computers have same workgroup name), but can connect only to others Windows 10 computers.

I enabled "SMB 1.0/CIFS Client" in Windows features. "Enable NetBIOS over TCP/IP" is checked.

If i do from cmd:

nbtstat -a myservername

it works and shows server information

Ethernet:
Node IpAddress: [192.168.0.32] Scope Id: []

       NetBIOS Remote Machine Name Table

   Name               Type         Status
---------------------------------------------
MYSERVERNAME   <00>  UNIQUE      Registered
MYSERVERNAME   <03>  UNIQUE      Registered
MYSERVERNAME   <20>  UNIQUE      Registered
☺☻__MSBROWSE__☻<01>  GROUP       Registered
MYDOMAIN       <00>  GROUP       Registered
MYDOMAIN       <1D>  UNIQUE      Registered
MYDOMAIN       <1E>  GROUP       Registered

MAC Address = 00-00-00-00-00-00

but

net view \\myservername

gives error "System error 53 has occurred. The network path was not found."

Best Answer

Thanks to user gravity comment, i used Wireshark. In Wireshark there was "SMB2 Negotiate protocol", then "SMB2 Session setup", there Windows 10 was stopping connection after server offered him to connect using Guest access.

So i found this Microsoft article https://support.microsoft.com/en-us/help/4046019

Turning "Enable insecure guest logons" in group policy resolved this issue.

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