Nuclear option for stubborn network issues - flushes DNS, resets Winsock, and restarts adapters.

Flush DNS Cache

Clear-DnsClientCache
ipconfig /flushdns

Reset Winsock and IP Stack

netsh winsock reset
netsh int ip reset

Requires reboot to fully apply.

Restart All Network Adapters

Get-NetAdapter | Restart-NetAdapter

Or target a specific adapter:

Restart-NetAdapter -Name "Ethernet"

Release and Renew DHCP

ipconfig /release
ipconfig /renew

Full Nuclear Reset (All-in-One)

Clear-DnsClientCache
netsh winsock reset
netsh int ip reset
Get-NetAdapter | Restart-NetAdapter

Reboot after running.

Verify

Test-NetConnection -ComputerName google.com

Expected output: TcpTestSucceeded : True

Techworks Blog