@Yoyo1204 I see, thanks for your reply. I would like to follow up your case via email cause this device might be faulty. We can give you a specific answer via email later. Good day.

@Musab12345 Could you please provide more information? Is it the first you set it up? What is the current led status of the extender? Try to hard reset it by holding the reset hole for 1s with the...

@Daregt Please reset the 850RE first; how to reset: With the extender powered on, use a pin to press the RESET button for 1 second. The extender will reboot. Then please watch the setup video or...

@easyfriend4 Thanks for your updates, glad to hear that you figured it out. Good day.

@devanirnf Please provide more specific symptoms of the connection problems, like the unstable connection or slow speed. What is the led status of the Archer C9 when the connection problem happened?...

@Stevorama Hello, sorry for the trouble caused here. You can tell us the current problem and then we can do some troubleshooting and try to fix it. Best regards.