Batch - CMD
netsh advfirewall firewall add rule name=SQLPort dir=in protocol=tcp action=allow localport=1433 remoteip=localsubnet profile=DOMAIN
Powershell
New-NetFirewallRule -DisplayName "SQLServer default instance" -Direction Inbound -LocalPort 1433 -Protocol TCP -Action Allow
New-NetFirewallRule -DisplayName "SQLServer Browser service" -Direction Inbound -LocalPort 1434 -Protocol UDP -Action Allow
netsh advfirewall firewall add rule name=SQLPort dir=in protocol=tcp action=allow localport=1433 remoteip=localsubnet profile=DOMAIN