There was a solution to the problem, such a solution was suggested by a user from a Russian technical forum. What was done: 1.fasttrack enabled 2.the command is executed: /routing/rule/add routing-mark=main table=main action=lookup After these actions, the download speed of the Internet on wifi devi...

Do you report that ?

Yes, I wrote to the mail with a link to this topic. No response has yet been received. The most important thing for me is that I tested this on 2 different devices (Chateau 12), doing a general reset, and the problem was confirmed.

On firmware 7.0.beta8, I again see a drop in download speed to 30 megabits :(

I am adding information. I downloaded the 7.1beta1 firmware from https://download.mikrotik.com/routeros/7.1beta1/routeros-7.1beta1-arm.npk and downgraded the version via winbox. Nothing changed, the speed continued to remain low. Then I picked up a link from 7.0beta5 , here it is https://download.mi...

Until my problem is solved, tell me how can I downgrade the firmware to 7.0 and where can I get it?
netinstal is not available to me because now there is no computer with a wired interface.

I did a big investigation today! I connected the device to the wired interface, and I saw that the Internet speed over the wire was more than 100 megabits !!! Then I tried to measure the copying speed over the wireless interface within the network in order to understand if the problem is in the wire...

I bought a router to get more LTE speed and more functionality. I use a router in a country house, the operator's tower Megafon-Moscow (Russia) is in line of sight 1 km away from me. I used to use a huawei 525 router, it worked in b7 + b7 and gave out dl 100-200 and ul 30-50 megabits and ping 85-95 ...