@darant Its been a long time we are eagerly waiting for the 40A+40A CA support on MR600 and there is no such feedback or timelines for the 40A+40A supported firmware.

As we have already given sufficient proof that 40A+40A is working great on the other mobile phone devices but still we cannot see any progress after several discussions here.

It looks that TP-Link will unable to provide the firmware for this MR-600 V1 router to support 40A+40A CA combinations because the internal detachable PCIe CAt-6 LTE modem must support the same 40A+40A combination first which may require hardware design changes and due to this issue TP-Link is facing difficulties to provide 40A+40A support on this MR600-V1 router.

As per my knowledge and past experiences with other brands of PCIe and M.2 CAT6 LTE modems, additional carrier aggregation band supports require re-design of the physical CAT-6 modem along with revised software/firmware support. For example, I am facing a similar carrier aggregation issue with my M.2 LTE modem on my Dell laptop which is Sierra Wireless Airprime EM7455 LTE CAT-6 modem module where Dell Technical Support told me that it is not possible to add additional CA support combination bands on EM7455 modem through firmware updates which require hardware redesigns on EM7455 modem to support the additional 40A+40A CA.

Finally, I would like to say that I am not fully sure that TP-Link can make a beta firmware to support 40A+40A on our existing MR600 V1 routers. But TP-Link must say something about the roadmap/timelines if TP-Link is going to provide the same support through the revised firmware or not.

Also, my kind request to TP-Link to provide full CA band combination support information must be made available on the TP-Link website under product technical specification, so that before purchase this costly MR600v1 router, we can make sure that our requirement of CA support will be fulfilled.

Looking for a possitive response from TP-Link support.   

@darant that's why I was flagging up that V2 of this router was now available and asking if anyone knew wether it supported selecting bands as V1 with the beta firmware. TP-Link stated it would be.

@ishanjain28 thanks for that info. Great.

@Albut @ishanjain28 Thank you very much for notifying about version 2, I am very disappointed now to see that TP-Link is just released a new version 2 of the MR600 router with mentioning 40A+40A CA support in the specification sheet.

The version 1 specification sheet is useless and does not have any CA band combination support technical specifications.

@TP-Link support, Pls Advice what to do now with our existing version 1 of the costly MR600 router for 40A+40A CA support? Awaiting your positive valuable answer.

Hey @Rajiv.R

Are you sure Tp link v2 has 40A-40A CA support? They just mention 40+40 in their PDF. So maybe it's 40c-40c?

Here is the PDF, https://static.tp-link.com/2020/202009/20200907/Archer%20MR600(EU)2.0_datasheet.pdf

Tagging @Sunshine since they work are part of tp link customer care.

Hi @ishanjain28 

Thanks for your query about 40+40 CA combinations, In general as per my knowledge which I saw on the various portals/websites, the manufacturer of the Device/Phones/LTE Modems are mentioning in a standard format like the above you shown the screenshot as 40+40 which is by default considered as A, In case of C, they are mentioning it like 40C.

I would say, If it is 40C, then C must be mentioned with the band number. 

@Sunshine Can you please clarify if I am wrong about the MR600 V2 specification which is mentioned on TP-Link website under the specification in the PDF file as 40+40 and it is 40A+40A not 40C.

does latest firmware have option to choose band? if not il stick with beta

@Abhi093 @AkashDev 

My LPDA antennas were delivered a few days ago. But I was out of station, so did not set them up yet. I'm trying to setup the antennas now. I'm looking for your expert advise on how to mount and measure the improvements. Hope you can give some guidance.

I'm located in a rural area and the nearest airtel tower is located <1Km with a clear line of sight from the terrace. Both jio and Airtel towers are located in the same area. On net monster and other apps, I've observed that Airtel signals come from 3 different towers. Two other towers are located in different directions, and they are 5-6 kms away. I've not observed 4g+ when connected to the nearest tower. Nearest tower is almost always connected on band-3(1800) and the average speeds from the terrace are 30 Mbps DL and 25 Mbps UL. This is my current setup.

I've setup the 12dbi LPDA antennas today. After connecting them to the router I've observed improvement in rsrp, but rsrq and SNR have gone down. I've gotten 10 mtr lmr400 cables ( thought I don't need 10 mtrs really) to connect the antennas to router.  My suspicion is the mounting of antennas is incorrect.  I haven't gotten the 90 degree perfectly, I'm going to retry this tomorrow. 

My queries are about the antenna setup. Which portion of the antenna should face the tower? In my current setup, xyz area is facing the tower. Is this the right way to arrange the antenna. 

Another question is, shall I mount the antennas on the same pole or two different poles? If I've to mount them on different poles, what should be the right way to setup each antenna? 

Your guidance is highly appreciated. Thank you.

I've attached the signal strength values in the current setup.