@MR.S I have already tried that. The only wizard that starts after that is "Set Upgrade Rule" wizard, please see the picture below. "Next" is grayed out. And no target version.

I have a problem with updating firmware of the connected devices (access points, switches) via OC300 controller. I receive a notification, that a firmware upgrade is available, that I should go to...

@MR.S Thank You! Your solution helped me.

I use the router ER7206 V1 with a hardware controller OC300 V1. After upgrade to firmware version 1.4 from the previous firmware version 1.3 everything operates normally. The only problem I faced was...

@MR.S That would be OK, but unfortunately I do not have a backup ofthe previous firmware. I can make a backup of a present firmware but I am afraid it will not be possible to apply it to downgraded...

I want to downgrade my controller to a previous reliable version. I understand that right now everything is being done to correct the July 2023 version. But when downgrading I will have to apply all...