Be careful about the x64 and x32 bit version. Try another computer too if possible. It could be some program is affecting the plugin

So the extender doesn't support special characters, you may need to change the password on your router.

Hi, It's not allowed to update the firmware from EU to US and vice versa. It should be fine to use lower channels, as 5GHz is not crowded as 2.4GHz.

Hi, Do you mean the Fire Stick works for a while then shows no internet? Do you have internet access on other devices with the extender? Is your TV connected to the extender by cable or wifi? What's...

Hi, Is the Deco working as a main router? No double NAT in your network, right? Is the connection type PPPoE or Dynamic IP on the Deco? What port numbers are you using on the Cloud sever?

Hi Andrea, When the connect drops, is the DSL and internet light on? Do you have WAN IP address on the router's Status page? Also better to check this: http://www.tp-link.com/en/faq-547.html