I also have this issue, but having followed all of the steps above it is still not solved.
I have a Windows Vista PC and a Windows 8.1 laptop.
I am able to access shared folders between these two using the HomeGroup facility in Windows 8.1
I recently added a Windows 11 pro machine. Following the advice above it has a Local account with password.
In the network section of Explorer I cannot see the Windows 8.1 machine,
I can (apparently) open it as a media library source in wmp, but there is no content found in Music, Videos or Pictures.
The Win11 PC can see the Vista PC, but when I try to open it in explorer it fails.
The Windows Network Diagnostics reports:
Your computer appears to be correctly configured, but the device or resource (XXXX-XX) is not responding
'Detected', yellow warniing triangle
The Vista PC can see the Windows 11 machine, but opening fails. The diagnostic reports:
Network diagnostics pinged the remote host but did not reeceive a response
On the Windows 8.1 laptop I can see both the Vista machine (which I can also access) and the Windows 11 machine, but opening the latter fails. The diagnostic reports:
Windows can't communicate with the device or resource (XXXX-XXXXXXXX)
'Detected', yellow warniing triangle
There is also a mouse-over hint with the message:
It is available but is not responding to the connection attempts. A firewall or network security policy on the remote computer might be blocking the connection on port 'file and print sharing resource'.
In Windows Defender
Domain network = Firewall is On
Private network (active) = Firewall is On
Public network = Firewall is On
In Windows Defender, Domain network
Active domain networks = Not connected
Microsoft Defender Firewall = On
Incoming connections = Unchecked
In Windows Defender, Private network
Active private networks = [wifi connection]
Microsoft Defender Firewall = On
Incoming connections = Unchecked
In Windows Defender, Private network
Active public networks = Not connected
Microsoft Defender Firewall = On
Incoming connections = Unchecked
In Windows Defender, Allowed Applications
There is a long list of entries, those which I thought most relevant are:
On - Core Networking
Off - Core Networking Diagnostics
On - File and Printer Sharing
On - File and Printer Sharing over SMBirect
On - Network Discovery
Off - Secure Socket Tunneling Protocol
Off - SNMP Trap
On - Wi-Fi Direct Netword Discovery
On - Windows Media Player
Off - Windows Media Player Network Sharing Service
On - WLAN Service - WFD Application Services ...
On - WLAN Service - WFD Services ...
On - Workplace or School Account
On - Your Account
Under Firewall & network protection, Advance settings
There are three sections in Overview:
- Domain Profile
- Private Profile is Active
- Public Profile
All three have the following entries:
- Windows Defender Firewall is on
- Inbound connections that do not match a rule are blocked
- Outbound connections that do not match a rule are allowed
Changing the 'Inbound .... blocked' entries to Unblocked appears to disable the Firewall
Under Inbound Rules and Outbound Rules there are many, many entries
There are no entries under Connection Security Rules
Temporarily disabling the Microsoft Defender Firewall does not make any difference.
There is an Apple computer on the network. The Win11 PC can log into this Apple PC using a guest username and password
There is a smart TV on the network with an external HD connected. The Win11 PC can open and edit a text file that I put on this drive.
I would be happy to provide any more data.
Regards