lumia 550 unlock error

WP8 Unlock Started
Connecting to server…
Connected
Authenticating…
Authenticated
Checking Client version…
Client version is valid
Processing Step #1
Processing Step #2
Processing Step #3
Processing Step #4
Disconnected
Need SDAuth to finish …
Started
Connecting to SX4 server…
Connection faled: Socket Error # 10060
Connection timed out.
SX4 Disconnected
SX4 Failed, will retry Auth again …
Started
Connecting to SX4 server…
Connection faled: Socket Error # 10060
Connection timed out.
SX4 Disconnected
SDAuth not done! Try make SX4 after 1-2 minute and make "Unlock" again!
Error! Check previous error message for more info!(PLS HELP)