SecuExtender randomly disconnecting from USG310

Fender

At my client office they are using the SecuExtender VPN Client (SSL_VPN_Client_4.0.4.0) but getting randomly diconnected without any reason. I let them use a wired connection from home and a ping logger tool (ping 8.8.8.8 -t) to be sure it is not the home provider causing disconnect issues. There is no packet loss, so the VPN itself is disconnecting without a user action.

From the SecuExtenderHelper.log file this is hapening before the disconnect:

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Request(102): REMOVE 3943147712/1023840441 14 3474892992 29927616

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Remove Routing

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Remove prioritize routing

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Succeed to delete prioritize route to x.x.x.x

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Get netsh path = powershell

[ 2022/08/17 11:13:30 ][SecuExtender Helper] Set-NetIPInterface -InterfaceAlias "Ethernet 3" -InterfaceMetric 30

[ 2022/08/17 11:13:30 ][SecuExtender Helper] ZyShellExecute start.

[ 2022/08/17 11:13:32 ][SecuExtender Helper] ZyShellExecute WaitForSingleObject() result = 0

[ 2022/08/17 11:13:32 ][SecuExtender Helper] GetExitCodeProcess

[ 2022/08/17 11:13:32 ][SecuExtender Helper] lpszFile = powershell, lpszParam = Set-NetIPInterface -InterfaceAlias "Ethernet 3" -InterfaceMetric 30, dwExitCode = 1, dwError = 0

[ 2022/08/17 11:13:32 ][SecuExtender Helper] Failed to read from client(2): 109, 0

[ 2022/08/17 11:13:32 ][SecuExtender Helper] Start to Disconnect pipe...

[ 2022/08/17 11:13:32 ][SecuExtender Helper] Shutting down a pipe connection instance...

[ 2022/08/17 11:13:32 ][SecuExtender Helper] ==============================

This issue is already playing for several months, the zywall is also using the latest firmware: V4.72(AAAB.0)

PeterUK

Update the firmware listed here
ZLD V4.72 WK28 Firmware release — Zyxel Community

PeterUK

Update the firmware listed here
ZLD V4.72 WK28 Firmware release — Zyxel Community

Fender

Thanks, I will try that first.

Fender

After the firmware update the VPN is now stable.