Merge branch 'dev'

Might help #7

main.go

@@ -137,7 +137,7 @@ func startPingCheck(tnet *netstack.Net, serverIP string, stopChan chan struct{})
 
 func pingWithRetry(tnet *netstack.Net, dst string) error {
 	const (
-		maxAttempts = 5
+		maxAttempts = 15
 		retryDelay  = 2 * time.Second
 	)
 
@@ -358,7 +358,7 @@ func main() {
 			if err != nil {
 				// Handle complete failure after all retries
 				logger.Warn("Failed to ping %s: %v", wgData.ServerIP, err)
-				logger.Warn("HINT: Do you have UDP port 51280 (or the port in config.yml) open on your Pangolin server?")
+				logger.Warn("HINT: Do you have UDP port 51820 (or the port in config.yml) open on your Pangolin server?")
 			}
 			return
 		}