@TP-Link my unit had a lot of bug. impossible to aggregate 2 band (maybe work togheter for few minutes), choose manual, (3-20 for me in italy), then save and reboot but always restart with one of this band (random, 1 times 20, another 3 and only 2 times, of 40 test togheter to return 1 only in few mionutes). i've tried to update firmware and i found another bug (in picture), system tell me taht i need new firmware but don't start to update this and in italian and english website of tp-ling my firmware was last

Its manual band selection is not working properly in in mr600 V2.in one thousand time we can select a band or we can say big problem in band selection.Net speed is slower than normal mobile.Totally waste of money.

I am using MR600 V2 with jio sim in India. B3 + B5 is working. B40 + B40 is also working, which is good. B3/B5 + B40 is not working. For that case only giving priority to B40 and it is working as B40 + B40. If the B40 is down or poor signal then your internet will be die. This is not operater issue, this is router issue. Also when file is uploading carrier Aggregation is not working. Support team please inform to the developer to look into those bugs.

@SR1646 

No, if your bands mode is automatic or you select only B40 or you select two bands including B40 then it will work automatically. How you know that B40 + B40 is working or not? First open tplink admin then go to Advanced tab then open speed test from your mobile then click on go button after that again click on tplink admin advanced tab to reload the data. Remember it will show only when Speed test is showing download graph, when file is uploading it will not work means carrier Aggregation is not working. This is also a bug. You can try other bands to check that your internet speed is increasing or not, because you mention that your speed is slower than mobile.

@Sukhchain hello dear, manual selection of band is moved to advance network section. You can select multiple bands. Pls find screenshot.

  @amaxgraph 

Update MR600 V.2 Firmware to the Latest Version: 1.5.0 0.9.1 v0001.0 Build 210914 Rel.59719n (available in Global-English Website)

After firmware update, also update ISP File to the Latest Version: 21082501  (available in Global-English Website)