I am based in the UK and have a 5G EE router supplied by EE(BT). This gives me speeds above 180MB download. The router is locked however and I cannot change the DNS, firewall settings or set up anything useful. So I thought to buy the Mikrotik Chateau 5G. I managed to get this working but then noticed that the speeds were slow compared with the EE router. I can only get up to 65MB. If I turn off the 4G network settings on the LTE I get no signal at all. Effectively the 5G settings don't seem to be used. I am getting B1, B3 and N28 bands with the other router and the signal qualities are good/excellent. Do you have any idea why the Chateau is so much slower?

not all chateaus are the same, the 5g modem in the device is actually a 'mini' pcie card, the distributor would of chosen the best card for their region then brought that version of the chateau 5g
If you take a look at the chateaus product page https://mikrotik.com/product/chateau_5g under the support and download tab there is a pdf with all the different modems and what frequencies they support, I would suggest logging into the chateau and checking what model of 5g modem, checking on the pdf to see what frequencies they support then checking to see what is supported in your area.

In Australia the regulatory body for wireless communications (acma) has a google maps style site here that you can look up a location and find out all the details from the cell towers, I would assume there would be government resources like that for you as well

i have the seam issue and my modem model is RM502Q-AE

I am based in the UK and have a 5G EE router supplied by EE(BT). This gives me speeds above 180MB download. The router is locked however and I cannot change the DNS, firewall settings or set up anything useful. So I thought to buy the Mikrotik Chateau 5G. I managed to get this working but then noticed that the speeds were slow compared with the EE router. I can only get up to 65MB. If I turn off the 4G network settings on the LTE I get no signal at all. Effectively the 5G settings don't seem to be used. I am getting B1, B3 and N28 bands with the other router and the signal qualities are good/excellent. Do you have any idea why the Chateau is so much slower?

OK, the 5G EE router is a rebranded Zyxel NR5103: https://service-provider.zyxel.com/emea ... dus/nr5103
In the default configuration, the Chateau 5G is optimised for N78 on the external 5G antennas: https://confusedbird.com/thread-119.html
If you are willing to rewire the 5G antennas, we should be able to optimise your N28 throughput.

My router is ID:D53G-5HacDnD-TC&RG502Q-EA.
I appear to be getting good signals however I never get anything better than 45MB download speeds in the Mikrotik router. If I move the same SIM back into my phone I get a 270MB download speed.
https://pasteboard.co/KAv7w8KRKFCc.png
https://pasteboard.co/qknGaYJA5bEs.png

Do I really need to take the router to pieces and mess around with the antennas???