Published by strongSwan Project on Aug 5, 2024

Report an issue with strongSwan VPN Client.
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Why should I report an Issue with strongSwan VPN Client?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of strongSwan Project to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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strongSwan VPN Client Customer Insights

1. Perfectly connects to my server, but the traffic still goes outside this tunnel.It would be really great if strongswan supports TCP encapsulation other then UDP as only a fallback when UDP ports are blocked, since most already blocked UDP port 500 and 4500I used an old version of strongSwan for years, it was a custom version from my VPN provider.

2. UPD: The battery consumption increases after automatic reconnection to the server and decreases after the forced stop and restart of the application.I always use strong swan in order to connect to Ikev2 protocol with either Nord or Surfshark.

3. Fortunately I found 2 apps that are 100% regristration free, 100% ad free, provides one touch connection to multiple VPNs all over the globe, & doesn't cost you a dime.

4. It was good, especially with battery life and network changes, but lacked many features offered with OpenVPN like excluding apps, so I used OpenVPN instead.

5. This is much more stable and lighter.I was hoping it would provide L2TP options which have been removed in the new versions of Android's embedded client, but it does not.

6. Perfect for people with limited bandwidth like me.This is a great app to use on mobile phones, it ensures a seamless speedy connection.

7. But I've recently upgraded to the latest version of strongSwan and it's so much better now, with Always-On support and Split Tunneling for apps it has everything I need.

8. Thanks to the whole team!A good application that I use all the time, but after a few hours of use, it starts to consume a lot of battery power.

9. I don't see any benefit on using this app instead the VPN client that already comes with Android... in fact it seems to be a mere interface????Doesn't work for me.

10. I recently learned that IKEv2 was a very robust protocol over mobile networks and switching network on the fly.

11. Handles network switches almost perfectly, speeds and ping are slightly better then using the regular app.

Steps to Troubleshoot & Fix strongSwan VPN Client Issues

1. Fix strongSwan VPN Client Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart strongSwan VPN Client: Restarting the app will resolve most errors.
  2. Update the strongSwan VPN Client App. Here is how:
    1. On Android goto PlayStore » Search for "strongSwan VPN Client" » Open strongSwan VPN Client » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for strongSwan VPN Client » click "UPDATE".
  3. Clear strongSwan VPN Client app cache: Clearing cached data will force your app to retrieve the latest data directly from strongSwan VPN Client servers.
    1. On Android, goto Settings » Apps » Select "strongSwan VPN Client" » click Storage » click "Clear Cache".
  4. Check strongSwan VPN Client app permissions. If any of these permissions required to use your device's features are disenabled, strongSwan VPN Client might not work.
  5. Uninstall and reinstall strongSwan VPN Client. If nothing else has worked, completely uninstall strongSwan VPN Client then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing strongSwan VPN Client not working


2. Fix strongSwan VPN Client Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make strongSwan VPN Client be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to strongSwan VPN Client not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, strongSwan VPN Client may not be able to connect to the Internet when running in the background.

Reported Issues