Troubleshooting Guide for SSLVPN Connection Issues
Learn how to troubleshoot common SSLVPN connection problems such as difficulties connecting to remote computers, network access device errors, conflicts with other programs, and issues with user privileges or certificates. Find solutions to resolve these issues and ensure a stable VPN connection.
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Troubleshoot Guide 2 This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. You might need to change the network settings for this connection. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen cf) Refer to 6p for how to reinstall the file through F5Wininfo.exe.
Troubleshoot Guide 3 Problems due to conflicts with other programs in the user s PC environment. The problem can be resolved by deleting the conflicting program. Conflicts with Toolbar, Vaccine, company security programs. Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Problems due to conflicts with other programs in the User s PC environment. Symptoms - After VPN connection, tunnel is created and immediately disconnected - The session could not be connected. VPN connection unavailable after message output - Re-authenticate after user authentication Solutions - Stop the real-time detection function of the vaccine - Delete anti-virus program and reboot PC
Troubleshoot Guide 4 Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Same as solution This computer can t connect to the remote computer.
Troubleshoot Guide 5 VPN connection program is not installed well Occurs when the VPN access program is installed but not installed normally. Delete the program throught the F5 uninstall program(F5wininfo.exe) and reinstall it. Main Page USAGE GUIDE click F5 click Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Windows service related to VPN connection is stopped Windows Service items required by VPN users 1) Telephony 2) Remote Access Connection Manager 3) Remote Access Auto Connection Manager Information on solutions for each item (continue)
Troubleshoot Guide 6 VPN connection program is not installed well Delete and reinstall through F5Wininfo.exe Tool (you can check after unpacking zip file) Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen [ f5wininfo.exe run screen ] [ Remove through Yes Click ] [ Tools >> Remove Components ]
Troubleshoot Guide 7 Windows service related to VPN connection is stopped (1/4) Diagnose and repair system files - Enter cmd Contents - Right-click on [Command Prompt] and click Run as administrator This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen - Enter SFC /SCANNOW - After checking whether there is a problem with the system file, repair proceeds for repairable items - Check the result message when the verification is complete [ Enter SFC /SCANNOW ] [ cmd Run as administrator ]
Troubleshoot Guide 8 Windows service related to VPN connection is stopped (2/4) Service Verification Contents 1) [Start] - Right-click on [This PC] - click Manage This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 2) Double-click [Service and Applications] Double-click [Service]
Troubleshoot Guide 9 Windows service related to VPN connection is stopped (3/4) Service Verification Contents 3) Right-click on [Telephony] and click [Properties] This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 4) [General] click Service status s [Start] - click [OK] 5) The same applies to [Remote Access Connection Manager], [Remote Access Auto Connection Manager] [ Remote Access Auto Connection Manager | Remote Access Connection Manager | Telephony service start ]
Troubleshoot Guide 10 Windows service related to VPN connection is stopped(4/4) Service Verification Contents 3) Right-click on [Telephony] and click [Properties] This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 4) [General] click Service status s [Start] - click [OK] 5) The same applies to [Remote Access Connection Manager], [Remote Access Auto Connection Manager] [ Remote Access Auto Connection Manager | Remote Access Connection Manager | Telephony service start ]
Troubleshoot Guide 11 Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Same as solution Network Access Connection Device was not found.
Troubleshoot Guide 12 - Active X Compatibility problem (Internet Explorer 10, 11) Contents Internet Explorer> [Manage add-ons] Change all functions starting with F5 Networks to ActiveX [Enabled] This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen If the same symptom occurs even though ActiveX starting with F5 Networks is [Enabled], it is recommended to reinstall Internet Explorer and install a different version of Internet Explorer.
Troubleshoot Guide 13 If this error message occurs, the problem is caused by the Contents wrong configuration of the protocol of the computer's network driver. This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Possible causes are problems on the Windows system, conflicts between VPN S/Ws, Windows OS is the Home version
Troubleshoot Guide 14 How to fix error (1/3) TCP/IP Protocol reset Contents 1) Right-click on [Command Prompt] and click Run as administrator This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 2) Enter netsh int ip reset restlog.txt 3) Retry SSL VPN connection after PC reboot [ Enter netsh int ip reset restlog.txt ] [ cmd Run as administrator ]
Troubleshoot Guide 15 How to fix error (2/3) RAS Dial reset Contents 1) Right-click on [Command Prompt] and click Run as administrator This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 2) Enter rasdial ipwork /disconnect 3) Retry SSL VPN connection after PC reboot [ Enter rasdial ipwork /disconnect' ] [ cmd Run as administrator ]
Troubleshoot Guide 16 How to fix error (3/3) Reinstall Network Adapter Contents 1) In [This PC], Right-click on [Properties], click [Device Manager] 2) Delete 4 Network Adapter and reinstall in network adapters This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen
Troubleshoot Guide 17 For Windows users, after checking the warning message caused by User account control , an issue occurs because ActiveX is not installed Contents or run This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Change the User account Control settings - [Control Panel] [User accounts] [Change User Account Control settings] Change account type
Troubleshoot Guide 18 Windows 7 Edge Client installation problem - Failed when installing Edge Client without Internet connection in Windows 7 BIG-IP Edge Client Setup Wizard ended prematurely. Client Not Installed Successfully After connecting to the Internet, the installation succeeds when installing problem Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen Windows version update is required due to issues occurring in Windows 10 version 1803 Update Link: https://www.microsoft.com/ko-kr/software-download/windows10ISO Windows 10 RS5(1809) problem - In Windows RS5 version, when connecting to SSL VPN, external Internet access is not possible. - This is a Windows RS5 bug, and the issue will be resolved through a Windows OS update in the future. There is no separate workaround, Windows update required Download Link: https://www.microsoft.com/ko-kr/software-download/windows10ISO
Troubleshoot Guide 19 9. Session has ended" Problem When logging in, you can connect more smoothly if you press the login button or enter once and wait. Contents This computer can t connect to the remote computer. The modem (or other connecting device) has reported an error. Network Access Connection Device was not found. Modem not present. Redirect is repeated and connection is not possible A connection to the remote computer could not be established. User Account Privileges OS Problem "Session has ended" issue Certificate Problem Session is continuously disconnected when connecting to the web screen 10. Certificate Problem Reinstall the VPN program after installing this file. http://media.kaspersky.com/utilities/CorporateUtilities/rootsupd. zip 11. Session is continuously disconnected when connecting to the web screen After installing the client program (BIG-IP Edge Client), connect to the client program rather than the web.
