diff --git a/common/src/main/scala/net/psforever/packet/control/ControlSyncResp.scala b/common/src/main/scala/net/psforever/packet/control/ControlSyncResp.scala
index 7ade14ad2..9df2cf263 100644
--- a/common/src/main/scala/net/psforever/packet/control/ControlSyncResp.scala
+++ b/common/src/main/scala/net/psforever/packet/control/ControlSyncResp.scala
@@ -5,7 +5,7 @@ import net.psforever.packet.{ControlPacketOpcode, Marshallable, PlanetSideContro
 import scodec.Codec
 import scodec.codecs._
 
-final case class ControlSyncResp(timeDiff : Int, unk : Long,
+final case class ControlSyncResp(timeDiff : Int, serverTick : Long,
                              field1 : Long, field2 : Long, field3 : Long, field4 : Long)
   extends PlanetSideControlPacket {
   type Packet = ControlSyncResp
@@ -16,7 +16,7 @@ final case class ControlSyncResp(timeDiff : Int, unk : Long,
 object ControlSyncResp extends Marshallable[ControlSyncResp] {
   implicit val codec : Codec[ControlSyncResp] = (
       ("time_diff" | uint16) ::
-      ("unk" | uint32) ::
+      ("server_tick" | uint32) ::
       ("field1" | int64) ::
       ("field2" | int64) ::
       ("field3" | int64) ::
diff --git a/pslogin/src/main/scala/LoginSessionActor.scala b/pslogin/src/main/scala/LoginSessionActor.scala
index 1d9ff0c2e..9fa291c66 100644
--- a/pslogin/src/main/scala/LoginSessionActor.scala
+++ b/pslogin/src/main/scala/LoginSessionActor.scala
@@ -68,6 +68,11 @@ class LoginSessionActor extends Actor with MDCContextAware {
           case Successful(v) =>
             handlePkt(v)
         }
+      case sync @ ControlSync(diff, unk, f1, f2, f3, f4, fa, fb) =>
+        log.debug(s"SYNC: ${sync}")
+        val serverTick = Math.abs(System.nanoTime().toInt) // limit the size to prevent encoding error
+        sendResponse(PacketCoding.CreateControlPacket(ControlSyncResp(diff, serverTick,
+          fa, fb, fb, fa)))
       case MultiPacket(packets) =>
         packets.foreach { pkt =>
           PacketCoding.DecodePacket(pkt) match {