MySQL Only one usage of each socket address (protocol/network address/port) is normal...

If a software that you use a MySQL database gives the error "Only one usage of each socket address (protocol/network address/port) is normally permitted", applying the following settings on your server will be the solution.

1. You need to add a registry key to your Windows machine. To do this, first open your registry editor with the regedit command.

2. Go to the HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters path. 

3. Add the 4 keys below as DWORDs.

                TcpTimedWaitDelay
                 REG_DWORD: 0000001e (hex)

                MaxUserPort
                REG_DWORD: 0000fffe (hex)

                TcpNumConnections
                REG_DWORD: 00fffffe (hex)

                TcpMaxDataRetransmissions
                REG_DWORD: 00000005 (hex)

At the end reboot your server.