Safely resetting the Windows network stack

Short answer Capture the current configuration, then reset Winsock, TCP/IP and DNS client state.

When to use it

For a single broken client or after removing VPN/network software.

ipconfig /all > "$env:USERPROFILE\Desktop\network-before.txt"
route print >> "$env:USERPROFILE\Desktop\network-before.txt"

Note

Protect static settings and routes.

netsh winsock reset
netsh int ip reset
ipconfig /flushdns
Restart-Computer

Note

Requires elevation.

Record static IP, DNS, proxy and custom routes before resetting.