cannot make a l2tp vpn connection

[Jasperious]

I cannot make a conection to my vpn server.

Phone says connecting and the goes to disconnected.

I tried it several times but it does not work.

My nexus 7 (4.4.2) can connect without problems via wifi and via internet wich is shared through my xperia.

pre shared key and username and password are correct.

Please advice.

Jasper

[Uliwooly]

Is your phone locked to a carrier/network branded? 

[Jasperious]

My Phone is not locked to a carrier/network branded.

My carrier does not block the traffic and i'm using the standard vpn vlient within Android.

[SergioPL1]

What is your server? I've tried with Synology VPN server with no luck either. Finally switched to OpenVPN.

[Jasperious]

Here also synology, openvpn did work on my htc and will probably work on my sony.

But it should just work or be solved in 4.4.4

[Jasperious]

Does anyone know a good VPN client to use l2tp?

On the playstore i only find vpn apps to connect to other coutries i just want to connect to home.

[Rickard · Accepted solution]

We got a test account from SergioPL which helped us find the cause of this issue. It will be fixed in an upcoming software update.

[Rickard]

This has been solved in a software update for Xperia™ Z2, Xperia™ Z2 Tablet, Xperia™ Z3, and Xperia™ Z3 Tablet Compact. For those devices, you can fix the issue by updating your device to the software version 23.4.A.1.200 or later.
For the Xperia™ Z1, you will be able to fix it when the upcoming software version 14.6.A.1.210 is released. For Xperia™ Z3+ and Xperia™ Z5 devices, work is ongoing to include a fix in upcoming software updates.
When you have updated the software, you can add the VPN L2TP IPSec in your device.

To add the virtual private network (VPN) L2TP IPSec

1. From your Home screen, tap the Application screen icon.
2. Find and tap Settings > More… > VPN. You may be prompted to enter password for credential storage before creating a VPN network.
3. Tap the plus icon.
4. To display more options, mark the Show advanced options checkbox.
5. Select the type of VPN to add: “L2TP/IPSec PSK 96bit”.
6. Enter your VPN settings.
7. Tap Save.