Ethernet and/or WiFi adapter sees available network,
But will not accept tcp/ip address – Will see Network icon in System Tray but will have “Exclamation mark”.

A reset of winsock and/or IP stack, may resolve the problem.
Usually – have success with a reset of winsock, then a restart.

WARNING !!!
This command must be applied at the local machine level.
Applying command on RDS network stack, will result in loss of connection for all users !!! 

1. In the search box on the taskbar, type Command prompt, press and hold (or right-click) Command prompt, and then select Run as administrator > Yes.

Note:- Requires Administrator Credentials

2. At the “Administrative” Command prompt, run the following command.

  • Type netsh winsock reset and press Enter.
  • Restart computer.

 

 

Optional – Full technical Fix:-

At “Administrative” Command prompt, run the following commands in the listed order, and then check to see if that fixes your connection problem:

  • Type netsh winsock reset and press Enter.
  • Type netsh int ip reset and press Enter.
  • Type ipconfig /release and press Enter.
  • Type ipconfig /renew and press Enter.
  • Type ipconfig /flushdns and press Enter.