SecuExtender randomly disconnecting from USG310

Fender
Fender Posts: 24  Freshman Member
First Comment Friend Collector Seventh Anniversary
in Security
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)

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