thank you very much for your response.
Of course I have checked it on the router and on the device too.
After upgrade when entering passowrd, it responses that it is an invalid password.
I know that after upgrade I sould use default password. opendoor
I can check out on the device that i should not have to enter with password.
There is only a blank page after it.
so I woudl lik some help 🙂 thank you!