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SAJUDIYA
Staff
SAJUDIYA
Staff
October 31, 2024

Technical Tip: SSL VPN/IPsec VPN is connected but received bytes show 0

  • October 31, 2024
  • 0 replies
  • 11088 views
Description This article describes the issue with FortiClient SSL VPN/IPsec VPN when connecting from a Windows 11 device. It connects, but the received bytes show 0 bytes.
Scope FortiGate, Windows 11.
Solution
  1. Try to reset the TCP/IP stack on Windows 11 using the Netshell utility from the command line (run cmd as administrator):

 

Reset-TCPIP-Stack-on-Windows-11.png

 

  1. If it still has the same issue, try to reinstall FortiClient and restart the device.
  2. If that does not work, follow the command below in the command prompt of the Windows 11 device and restart the device:

 

ipconfig /release
ipconfig /flushdns
ipconfig /renew
netsh int ip reset
netsh winsock reset

 

  1. Uninstall Windows 11 KB5026372 or KB2693643 that causes an issue in Windows 11: Troubleshooting Tip: FortiClient user cannot access internal resources after connecting to it successfully
  2.  If it still does not work, try installing Microsoft Visual C++ 2015-2022 Redistributable: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170
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