Hello, it is suggested to update the firmware first:download link: https://www.tp-link.com/en/download/Archer-C9_V2.html#Firmware How to update it : https://www.tp-link.com/en/faq-1065.html Besides,...

Hello, what is the current firmware of the C50? It is suggested to connect your computer to the front-device by pass the TP-Link router to test the network connection first. For the unstable...

Hello, for your information, the TL-WR1200L is sold in mainland of China, that is why it is written in Chinese. As an international tech support, we are not familiar with this product, it is...

Hello, for the speed issue, it is suggested to do further troubleshooting as the below instruction first: https://www.tp-link.com/en/faq-2170.html Besides, we recommend you to use speedtest.net to...

Hi, we are sorry that we do not understand your quetsion due to the languagae barrier, would you please re-send the details of the current issue in English and then we can continue to help you?

First, you can restart the router and try to use the default and custom username and password to login; If does not work, you may change another web browser or device and give it a shot. Otherwise,...