Windows 10 won't connect to older servers - error 0x80004005
Symptom
You can ping the server from the Windows 10 computer but you cannot browse to it.
Resolution
This can be a permission issue. Make sure that the user name is the exists on both computers. If that doesn't work try the steps below.
This is often an SMB issue. Windows 10 won't communicate in SMB1 by default and enabling it isn't recommended. SMB2 or SMB3 are your only options. In the past we have disabled SMB2 on servers to eliminate indexing issues in Scrap Dragon Classic. Enabling SMB2 on the server may resolve the issue.
See this article from Microsoft on turning SMB on and off.