I have bought router MR600 only for the Carrier Aggregation feature.I am facing same issue. I have checked with airtel and Jio.It is router problem. In router, manual network band selection is not working. But auto band selection is working ..it depends on ISP provider criteria. Airtel CAT band-3,40 . Dear TP link, Please update once fix available for manual network band selection in 4G+ Cat6 AC1200 Wireless Dual Band Gigabit Router Archer MR600(Version 2) Issue firmware: Archer_MR600v2_1.3.0_0.9.1_[210208-rel61056]_up_boot_Release_2021-02-08_17.06.35.bin

@JJoseph 

 

Hi, MR600 v2 has already supported the band selection feature, you can find it on the web GUI Advanced >Network >Internet page, when you choose the band, it will search for the available bands, choose one that is labeled with your ISP.

 

If you still cannot find the option to choose the band manually, please show us the screenshot on the Network page, we can confirm.

 

Thank you for your prompt reply. @TP-Link: Please inform your software development team to do compatibility testing in multiple browser(IE,Chrome,Firfox etc) and inform the end user to use http://192.168.1.1/ in compatibility browser. My issue regarding lock specific LTE bands in MR600v2 is resolved. It was software -browser compatibility issue. I am sharing solution as workaround for other customer of MR600v2 router .It may be helpful for them. Solution: Please use Firefox browser(89.0.2,Firefox Release, June 23, 2021) to access http://192.168.1.1/ and please select network band by double-click check box by mouse. Then band will added successfully to configuration of router. Note for Indian customer: Jio: Band 3,5 & 40– Jio enabled Carrier aggregation in their All Bandwidths, Airtel: 1,3,5,8,40– Airtel Enabled Carrier Aggregation in Band 3, 40 only, Vodafone Idea: 1,3,8,40,41– Vodafone Idea enabled carrier aggregation in their 20mhz network. Regards, Joseph

@JJoseph 

 

Thanks for your detailed testing. Actually the engineers should perform lots of tests before releasing a new official firmware, so no worries about that. While we do appreciate your guide and suggestions for others, which may help a lot.

@Kevin_Z 

 

Kindly provide Archer MR600 V1 latest beta firmware for band selection.

@Rjsh 

 

Hi, you can find it on the original post in this thread.

 

Archer MR600(EU)_V1:

https://static.tp-link.com/2020/202012/20201207/Archer_MR600v1_1.1.0_0.9.1_[201204-rel66940]_up_boot_2020-12-04_19.05.35.zip

Note: Please note that not all combinations of the 4G bands are supported in 4G+ mode. Only when the router and the SIM card support the same combinations of 4G band in 4G+ mode, the bands might be aggregated successfully.

I have commented here my positive experience about MR6400.

Unfortunately I have to change my "review". It's probably not about the new beta firmware but I have recently faced serious issues in the local network in which one ISP of two is this modem, providing internet in a condo for dozens of flats and even more devices connected.

It seems that MR6400 can't handle more than a couple of devices loading webpages simultaneously. I would like to know how many sessions it can handle because it just happened that even if the bandwidth would be suficient, the webpages couldn't be loaded when higher number than one or two devices try to go to the internet.

I remember when I unboxed the product and started to test it, still without the planned environment, just connecting two computers to separate LAN ports and started speedtest simultanously, the ping time shown in the test jumped up to hundreds if not thousands of milliseconds!

Is it the weakness of the device?

Is MR100 stronger? Is MR600 stronger? Could any of these handle dozens of connected devices?

Oh, one important detail: the wifi has remained off, I didn't want to weaken the performance with it. And when integrated in the local network, there was only one LAN port used, connecting the MR6400 into the R605's WAN port.

I tried dynamic and static IP. I tried limiting sessions into whatever low possible (even 80) per device.
I tried bandwidth control. I even lowered the bandwitdh parametres radically in the R605, regarding to the MR6400. E. g.: while the real bandwidth would be around 50 down, 25 up, I tried setting just 1Mbit or even less, so the R605 would direct most demand to the other WAN port with stronger microwave net. Nothing has worked.

I'm sad. I really liked this modem but this way it's not usable, perhaps in the winter when just a couple of users are in the condo.

 

Why doesn't TP-Link advertise it as a home router with very limited hardware capacity to only one or two devices?

Sorry for the bad review.

Hi @Arion 

 

Why doesn't TP-Link advertise it as a home router with very limited hardware capacity to only one or two devices?

 

This could NOT be the design or advertisement, let me know if you find this advertisement in the official website.

 

We will try to make the issue clearer, you have the MR6400 connected to the ER605 VPN router, am I right? While I guess that is correct that the MR6400 is designed to be a home router, it may be not suitable for a business environment if you want to connect lots of devices in the network.

 

You can do a simple test by connecting the client devices directly to the MR6400 either with LAN or wireless, to confirm if you can access the internet properly. If yes, I guess you will need to review the settings on the ER605 for some basic settings, you may try to reset it to factory defaults first, connect it to the LAN of the MR6400, then check if the internet will work automatically, check if you can access internet on the devices that connected to the ER605.

@Kevin_Z 

Thanks for the reply.

I don't want to go off-topic here, so just briefly:

MR6400 works if I connect one device or if I connect even more devices via R605. It just can't handle more than a few. (how many exactly, I don't know.) I tested with the latest official and the beta firmware, as well. No difference.

As I said above, I tried configuring the R605 with bandwidth control, session limit (even to as low as 80). I tried defining the bandwidth of the 4G modem to a very low value to lower the demand from the R605. I checked the Session list, there wasn't any devices surpassing 150. Still it made the network unstable. And in the problematic time, 4G signal was at 75% and speedtest (connecting a single device only) showed up to 50Mbps download and 20-25MB upload. In the same time, the other ISP (microwave) with 80M/10M alone handles the demand just fine, at least so far.

 

If MR6400 is not suitable for business environment, which 4G modem of TP-Link product line is? Is the MR600 more capable for higher demand?

I didn't use the wifi or VPN in this configuration.

And as I also said, connecting only two PCs via the LAN ports of MR6400 and starting speedtest simultaneously made the modem struggle to handle it, producing ultrahigh (500-1000 times the normal) ping. That makes me suspect something.

I kind of regret I didn't choose MR600 (or Huawei B818) instead but nobody has published a comparison test on the internet about which of these can handle what amount of demand.

@Arion 

 

We'd better discuss this via email, or via PM, as you said we'd better not go off the topic.