@MABMED Hi, Same post, please reach to https://community.tp-link.com/en/home/forum/topic/224274

@MABMED Good day. Did you try to update the firmware of V2 to V3? If yes, it is not acceptable, you could only update from an older version of V3 to the latest version of V3, which means on the same...

@Lulederrick Good day. Did you have the same issue? Have you ever checked whether there is any obvious broken part inside the sim card slot? By the way, did you use the sim card holder and label to...

@nardegavazni Good day. For the TL-MR6400 V2, it did not have QoS, only bandwidth control. And for more details, please have a look at this link: https://www.tp-link.com/support/faq/1683/ Thank you...

@bimiza @heartbeat Good day. Thanks for sharing and it worth a shot. And there is another firmware and you could have a try for V1 only: Archer MR200(EU)_V1_160905...

@bimiza @clarjo Good day. If possible, please try to update the following firmware: Archer MR200(EU)_V1_160905 https://static.tp-link.com/Archer_MR200(EU)_V1_160905_1476936302791w.zip Thank you very...