hi all sifu~ i am using E398 with celcom 1 Malaysia. When i direct plug in the dongle to my pc, i can reached 60Mbps download and 15Mbps upload in LTE only. when i plug into the TR3420 and point to the same direction, it is very unstable, max can reach 15Mbps only, but sometime it will become 1Mbps worst need to restart and i have to try my luck whether i can get back to the normal speed.

Now most of the time it have 15Mbps download speed on TR3420, but 0 upload speed when i try to upload something it will just stuck there.

I am forcing my E398 to run 2600 band and LTE only, if not i can only get 0.5Mbps which is very very slow. I play around with:

All version of Rooter
Changing the E398 band around E398(find out that 2600 band and LTE only is the best)
Tried my friend E3276 turn out that it is worst than E398 on both direct plug in to pc and plug in to 3420 that follow the setting according to the first page

now i am very blur which setting should i keep any advise?

thanks in advance