So hello everyone.
Got an issue with my rooter :
I can't enable Guest Network, everytime i hit "enable" it refreshes the page and put it to the original state (disabled) and i can't change any option of it.
Can't change also Wireless Settings, i can have acces to those options, change them but when i hit "save" nothing happens, and when i refresh the page, there's no option changing too.
Thanks for your incoming help.
(PS : I don't know where do i get to know my hardware version)