SSL Network Extender (SNX) disconnects randomly after upgrade to R81

Solutions

Disable ability to open several tabs with Mobile Access portal. This brings some inconvenience:
SNX will be disconnected if user opens portal in another tab
SNX connection will remain active if user closes tab with portal or the whole browser
- Go to $CVPNDIR/phpincs on the gateway
- Find and backup file SNXController.php
- Open SNXController.php for editing
- Find line this.getComponent().start(1, "<?= $snx_session_id ?>"); (approx. line number 703)
- Replace the line with this.getComponent().start(1);
- Save file
- Changes are applied immediately.