Hello, Can M7650 connect to Internet again if you reboot it? You should check whether the card conforms the standard, maybe you can have a test with another SIM card. You can login M7650's management...

Hello~ I think this problem may happen if the power is off when it write flash. Did you remove the battery during the upgrade? You could try to reset your M7350, there is a reset button under the...

Hello, If you disable the DHCP, you need assign IP for your clients, it won't affect the DNS. If you want to use it as an AP or RE, it cannot be used that way. it have no ethernet port, you cannot...

You can try to change the MTU

This problem may happen if you power off the MiFi when it is flashing. It is beyond repair. Maybe you could contact your dealer for a replacement if it is within the warranty.

Refer to troubleshooting guides here. http://www.tp-link.com/en/faq-794.html http://www.tp-link.com/en/faq-795.html