Linux SSL VPN client error - SSL handshake failed

Hello,

We have recently update our SSL VPN infrastructure and after that I haven't been able to create a VPN tunnel from my laptop. I can successfully login to the web interface but when I try to create a tunnel a "Browser is waiting from status from Network Access Application" popup appears and after a short time it goes back to the popup that allows to download the client RPM or DEB.

I can see these entries in the ~/.F5Networks/vpn.log when I try (always the same entries):

==========================================================================
Kernel version: 1 SMP Debian 4.9.51-1 (2017-09-28)
System: Linux
Release: 4.9.0-4-amd64
Model: x86_64
Node name: robfas-lin
==========================================================================
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   =====================================
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   Location: /opt/f5/vpn/f5vpn
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   Version: 7140.2017.0414.1
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   Locale: C
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   Qt version: 5.7.1
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,   =====================================
2017-10-13,10:56:06:040, 19333,19333,, 0,,,,
2017-10-13,10:56:06:040, 19333,19333,, 48,,,, current log level = 63
2017-10-13,10:56:06:042, 19333,19333,, 48, /Helpers.h, 96, void f5::qt::setupLogs(const std::string&, const std::string&), OpenSSL supported: true. Lib in use: OpenSSL 1.0.2l   25 May 2017. Build: OpenSSL 1.0.2k   26 Jan 2017
2017-10-13,10:56:06:085, 19333,19333,, 48, /LinuxService.h, 45, void f5::qt::DBusInterface::Open(QStringList, QMap), D-Bus Open() method called
2017-10-13,10:56:06:097, 19333,19333,, 48, /HttpNetworkManager.cpp, 211, void f5::qt::HttpNetworkManager::HttpGet(const QUrl&, uint32_t), starting GET request to, https://vpn.paf.com/my.report.na
2017-10-13,10:56:06:200, 19333,19333,, 1, /HttpNetworkManager.cpp, 124, void f5::qt::HttpNetworkManager::error(QNetworkReply::NetworkError), Error occured while processing request(code), 6
2017-10-13,10:56:06:200, 19333,19333,, 1, /HttpNetworkManager.cpp, 271, void f5::qt::HttpNetworkManager::Finished(QNetworkReply*), Finished (code, error), 6, SSL handshake failed
2017-10-13,10:56:06:200, 19333,19333,, 48, /HttpNetworkManager.cpp, 420, void f5::qt::HttpNetworkManager::RequestFinished(), Request finished (err code, HTTP code), 6, 0
2017-10-13,10:56:06:200, 19333,19333,, 1, /HttpNetworkManager.cpp, 424, void f5::qt::HttpNetworkManager::RequestFinished(), Error occured (error code, HTTP code), 6, 0
2017-10-13,10:56:06:201, 19333,19333,, 48, /Session.cpp, 87, void f5::qt::Session::ProfileDownload(), Profile download starting, https://vpn.paf.com/pre/config.php?version=2.0
2017-10-13,10:56:06:201, 19333,19333,, 48, /HttpNetworkManager.cpp, 211, void f5::qt::HttpNetworkManager::HttpGet(const QUrl&, uint32_t), starting GET request to, https://vpn.paf.com/pre/config.php?version=2.0
2017-10-13,10:56:06:298, 19333,19333,, 1, /HttpNetworkManager.cpp, 124, void f5::qt::HttpNetworkManager::error(QNetworkReply::NetworkError), Error occured while processing request(code), 6
2017-10-13,10:56:06:298, 19333,19333,, 1, /HttpNetworkManager.cpp, 271, void f5::qt::HttpNetworkManager::Finished(QNetworkReply*), Finished (code, error), 6, SSL handshake failed
2017-10-13,10:56:06:298, 19333,19333,, 48, /HttpNetworkManager.cpp, 420, void f5::qt::HttpNetworkManager::RequestFinished(), Request finished (err code, HTTP code), 6, 0
2017-10-13,10:56:06:298, 19333,19333,, 1, /HttpNetworkManager.cpp, 424, void f5::qt::HttpNetworkManager::RequestFinished(), Error occured (error code, HTTP code), 6, 0
2017-10-13,10:56:06:298, 19333,19333,, 48, /Session.cpp, 59, void f5::qt::Session::ProfileDownloadFailed(QString), Profile download failed, Network error
2017-10-13,10:56:06:298, 19333,19333,, 48, /SessionManager.cpp, 222, void f5::qt::SessionManager::SessionError(QString), ----Session 46112466 ends----. Error occured: Network error
2017-10-13,10:56:06:298, 19333,19333,, 48, /SessionManager.cpp, 214, void f5::qt::SessionManager::CheckSessions(), No live sessions, quitting application....

I'm running on Debian Stretch 64 bit. I tried everything I could think about without success (and at the same time I can login successfully from an Android Tablet). Any tip on what I could try?

Could this be related to this bug: ID382396 [Linux CLI] Certificate verification doesn't work for some Linux distributions?

Thanks in advance!