Any user with Huawei B618 here that has tested the VoLTE function? E5186 has no VoLTE donno why everywhere advertised so, wasted my money to buy 3 units. If B618 can support then i have to replace the 3 units again. Using 3x Infinity 150, all in E5186, can't make call otherwise the internet dropped to 3G.

My case is completely opposite. MR200 and E5186 tested same location same sim card, E5186 outperform MR200 by 25%.
MR200 wireless is ridiculously poor, ping to router with any device nearby (hp, laptop etc) also can get request time out. Switched to other channel improved little bit but still far from satisfactory. 2.4G & 5G same. I have 3x MR200 v1 at 3 different locations, same case. Now all thrown at corner and replaced with 3x E5186.

TPLink has very good UI and setting options. Huawei has the worse setting option in the world could be, but good in signal capturing.