@Llaura With the sim card inserted into the TL-MR6400, try to reboot it and verify whether it works. Besides, you can hard reset it by holding the reset hole for 10s with MR6400 powered on. Still the...

@DanielDK I see, sorry for that; you can return it and get a new one first and test its performance. Any further problem, just be free to let us know. Best regards.

@bayad Hello, nowdays, we use mobile hotspot on Windows 10 itself to boost the wifi signal. Below is the instruction: https://www.tp-link.com/support/faq/2021/ May it help.

@enahssmith What is the kernel version of your computer? As far as I know, there is no official driver for the latest version of linux, therefore we cannot ensure that whether they can work together....

@Gnana What is the operating system of your computer? With it plugged into the USB port, please go to computer management-device manager-network adapter page to verify whether this T2U has been...

@Abel Yes, it should be V1.