Fixed bug - update probe address if it changes between ticks

peer/on_tick.go

@@ -42,10 +42,13 @@ func (a *App) onTick() {
 			}
 
 		case StateProbing:
-			// Promote probing peers to direct once alive (direct path confirmed
-			// working).
 			if time.Since(p.LastHandshakeTime()) < 2*wginterface.ProbeKeepalive {
+				// Promote probing peers to direct once alive (direct path confirmed
+				// working).
 				a.devPromote(p)
+			} else if ep := p.PreferredEndpoint(); ep.IsValid() && ep != p.WGEndpoint() {
+				// Update the probe address if it's changed.
+				a.devAddProbe(p, ep)
 			}
 
 		case StateDirect: