My Windows 10 - Windows 7 Network Adventure

Edit: What seems to be working lately:
Services:
Function Discovery Provider Host
Function Discovery Resource Publication
(Both set to Automatic (delayed start) and running.
Network Reset may need to be run (bottom of Network Settings page)
May need to turn on SMB 1.0 (type "features" in search)
Recently I have not needed it if all Windows 10 machines

Edit: Basic Things to check:
1. Find the IP address eg. \\192.168.1.123
... Use this in case the PC is not visible.
2. Be sure the User has a password. (No blank passwords)
3. Be sure of the correct User Name (Look in the Users folder)
4. Be sure network discovery and sharing is turned on.
5. Be sure at least one folder is shared.
6. Remember to ping to verify availability.
(Even with two Windows 10 machines networking can be a pain in the butt.)
... On our Windows 7 PCs upgraded to Windows 10 we ignore the Network browser interface.
After connecting through IP we map the drive and pin the link to Quick Access. This applies to outgoing from the 10 upgrades and inbound.
Until further notice 😎😎😎

Edit: Here is a list of things to also try.

Edit: Ok, I'm on 1809 and same issue . . . so, instead of using my actual user name, I tried "Admin". Guess what? What the heck?

This laptop Win 10 Home 1803 (Home came on the laptop and I was too lazy to change)
I can see the Windows 7 PC but get credential request no matter what I change. No user name or password combination will work.

But Win 10 1511 (Run in VB on same PC) Works just fine

It would be reasonable, then, to blame the 1803 PC.
It appears to not be the Win7 machine demanding credentials but the 1803 PC.
(Yes I have tried setting up credentials to no avail.)
(I have done SFC /Scannow)
(I have turned on every Windows Feature / Service I can find searching the problem)
(If you suggest reboot, I will slap you.)

Work in progress . . .

Two more settings to check . . .

This might also work but I have not tried it and don't really know what it does . . .

Here is the text of the above command . . .

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system /v LocalAccountTokenFilterPolicy /t REG_DWORD /d 1 /f

Try these things . . .

1] Check Function Discovery Resource Publication Service

2] Ensure that SMB 1.0 is manually enabled

3) Try Complete Internet Repair Tool (in SyMenu)

Use it to: (These are the commands for manual)

netsh winsock reset

netsh int ip reset

ipconfig /release

ipconfig /renew

ipconfig /flushdns

4) Reset the network