Fixed bug - update probe address if it changes between ticks

peer/app.go

@@ -118,7 +118,7 @@ func (a *App) onShutdown() error {
 func (a *App) logNetworkState() {
 	var b strings.Builder
 	fmt.Fprintf(&b, "Network state (self: %s public=%v):\n", a.vpnIP, a.isPublic)
-	fmt.Fprintf(&b, "  Network: %v", a.vpnNet)
+	fmt.Fprintf(&b, "  Network: %v\n", a.vpnNet)
 	fmt.Fprintf(&b, "  IPv4: %v\n", a.selfV4)
 	fmt.Fprintf(&b, "  IPv6: %v\n", a.selfV6)
 

peer/on_tick.go

@@ -42,10 +42,13 @@ func (a *App) onTick() {
 			}
 
 		case StateProbing:
+			if time.Since(p.LastHandshakeTime()) < 2*wginterface.ProbeKeepalive {
 				// Promote probing peers to direct once alive (direct path confirmed
 				// working).
-			if time.Since(p.LastHandshakeTime()) < 2*wginterface.ProbeKeepalive {
 				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: