It's so disappointing that it isn't fixed even in the latest 7.7 stable version. I wonder whether Mikrotik knows it or they simply don't want to fix it.

No.

For this both drivers would have to be active at the same time and this is not supported (yet).

Well, this is not good news. But still thanks for your reply!

According to the documentation ( https://help.mikrotik.com/docs/display/ROS/WifiWave2#WifiWave2-Compatibility ), the 2.4GHz interface of the RB4011iGS+5HacQ2HnD will be unusable after installing the wifiwave2 package. I understand this is due to the chip not supporting it. However, is it possible to...