Windows 10: Network not connecting or something

So this is a complex question, mostly about network passwords( and I am a dummy about networks) :

I had a 'professional' (owner of a computer shop) install a network between three computers--two win 10 pro desktops and a win 10pro laptop. The laptop and one of the desktops live in the house. The other desktop lives in a shop building about 50 feet away.

When I try to open the network from the shop computer I get a window that asks for a password. I don't know it. When my wife tried to print to a networked printer from her laptop, the laptop saw the printer but the print job never even initiated. At one point, she accessed netshare (?...some of this is second hand) and got a message that said the password was expired and "no longer valid."

So I guess the fundamental question is whether and how (I have administrative rights) I can recover or reestablish working passwords of each node of the network.

??

:)

 

Losing network connection

Hello Dear, if you have a laptop or a PC with a wireless network adapter, you can see a list of available wireless networks and then connect to one of those networks. The wireless networks will only appear if your PC has a wireless network adapter installed, the adapter is turned on, and the wireless access point is in range.

1. Click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections.

2. In the left pane, under Network Tasks, click View available wireless networks.
In case, If you don't see the network you want to connect to, click Refresh network list. If you see the network but the signal is weak, move the PC closer to the wireless router.

3. Click the network you want to connect to, and then click Connect.

4. If you're connecting to a secure network, type the security key, and then click OK.

I Hope you solve out your query soon.

 

No network connection

Hello Graham,

To resolve your concern about wireless network issues, please click the link below and follow the suggested troubleshooting steps:

• Fix network connection issues in Windows 10

Let us know how it goes.

 

network connectivity

I highly suggest that you try these steps instead:

• 
  Press theWindows
  key + X button on your keyboard.
  
• 
  Go to
  Control Panel.
  
• 
  Select
  Network and Sharing Center.
  
• 
  Click on
  Internet options.
  
• 
  Choose
  Connections
  tab.
  
• 
  Click on
  LAN Settings.
  
• 
  Uncheck
  Use a Proxy server for your LAN.
  
• 
  Click
  Apply, then
  OK.