USG40w - Some SSL VPN users can send byte but do not receive

Timm

Hello,

I configured a SSL VPN on my USG40W with FirmWare 4.33

I can personally connect to the SSL VPN using SecuExtender 4.0.3.0, ping one server and I see, in the Network Traffic Statistics, transmitted: 10Kbyte + Received 240 Byte

Everything works fine for me.

I'm on Windows 7

One of my colleague which is on Windows 10, can also ping the server and everything works fine.

But 2 of my colleague which are on Windows 10, have issue.

They can connect to the SSL VPN (I see their connection on the router), but when they ping the server, the number of byte transmitted increase but the number of byte received stay at 0

Further more, when I ping their IP address from inside the network, the number of byte received increase on their SecuExtender.

I don't understand what is going wrong.

It works for me.

So what can I do to troubleshoot this issue ?

Regards,

Zyxel_Emily

Hi @Timm,

On Windows 10, disable “TAP-Windows Adapter” and enable it.

After SecuExtender is connected, ping one PC in LAN of USG40W. For example, ping 192.168.1.33 continuously.

Check the status of “TAP-Windows Adapter” and see if there are accumulated data for Sent and Received.

As long as the SecuExtender is able to access the internal servers an there are data for sent/received, the tunnel is working.

Besides, the firmware 4.33 is kind of old version. We suggest you upgrade USG40W to the latest version 4.39.

Timm

Hello,

We fixed the issue by disabling other VPN software installed on the PC.

Thanks for your help.