Model : TL-MR3420

Hardware Version : Not Clear

Firmware Version : 3.16.9 Build 160517 Rel.58708n

ISP : OI

Region : EU


Model : TL-MR3220


Hardware Version : V3


Firmware Version : 3.16.9 Build 160517 Rel.58708n


Hardware Version : MR3420 v3 00000000


Hello Support Community,


I purchased TL-MR3420 3G/4G Router yesterday.


I am facing a following issue:


I have attached 3G device and WAN with router using WAN Preferred Mode but it is not working properly. WAN should be given priority but It shows 0.0.0.0 most of time and always connected to 3G.


Are there any specific conditions on which this quick switch from 3G to WAN and WAN to 3G is done?


For example, WAN responds late to Router...
Even if WAN responds late, once router gain access to WAN, it should be switched to WAN.


Please guide me or I have to claim WARRANTY.


Please respond me as soon as possible.