@MeninGate OK

@MeninGate As I told you, router ned access to controller on port 443. router is probably not adopted in vpn tunnel but on wan interface, so you have to port nat from wan to controller on lan. do...

@ObiWanKenobi I wote for upgrade, :-)

@MeninGate router ned access to controller management port, deafult is 443 on hardware controller or 8043 on software controller. whitout this access upgrade will fail and to be sure add this port...

@Fae thank you

@DarLynn do you connected switch to that port? then you will get hartbeat error and disconnect. you have to connect your computer to this port