Check the following services are running and not disbaled:
- DNS Client
- Function Discovery Resource Publication
- SSDP Discovery
- UPnP Device Host
Allow network discovery in the windows firewall in the network security settings.
For Samba file shares install the feature SMB 1.0/CIFS Client if the share is on an older device such as a router
- Get-WindowsOptionalFeature -Online -FeatureName SMB1Protocol-Client
- Enable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol-Client
Enable insecure guest logins via local group policy:
- Computer Configuration -> Administrative templates -> Network -> Lanman Workstation > Enable insecure guest logins - enable
SMB protocol enable / disable
If there have been migrations from one domain to another domain file shares may be accessed on old DNS records that have been re-pointed. The Hostnames will then not match the new servers that the connections are pointing to. To fix this you can disable strict name checking.
https://4sysops.com/archives/disable-strict-name-checking-with-powershell/
Or change/add the following reg key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
DWORD name: DisableStrictNameChecking
DWORD value: 1