Hey,

Since the last firmware upgrade, I have a problem with my wifi router. 
I have like 10+ devices in my house like smartphones, tablets, and smart home devices. 

After the upgrade, I saw that some of the devices got disconnected from the network for a period of time. For example

HP wifi printer not able to connect to wifi, only if I restart the router, but it will lose the connection in an hour or so and not able to connect again until I restart the router.

The same issue applies to other devices as well, such as android smartphones or smart devices in my house. 

Before the upgrade, all of these devices are worked just fine. 

I also tried to factory reset the router and use it with default settings. I had the same issue. :( 

When I tried to downgrade the firmware I saw this in the note:

"2. This FW has added some new features, it cannot be downgraded to former release once upgraded to this one."

Has anyone seen issues like this? 

If so, do you have any idea how to solve the problem?

Thanks,