Rate limit for clients on ASUS RT-N56U

Question

System administration

There is an RT-N56U with this firmware: code.google.com/p/rt-n56u/ I
installed uMurmur (Mumble-server), it's very convenient, it's an ideal choice for just a few people, it works great and does not load the system. But this is not without problems, apparently, the router software sets a low priority in speed for itself, so if I download something through this access point, then the speed rests on the ceiling and nothing remains under Murmur. It is impossible to talk in it at this moment. And this is all despite the fact that the provider provides honest 100/100Mbit/s, and uMurmur requires nothing at all (48*n Kbit/s, where n is the number of clients). So, the router works under a slightly castrated Linux, but SSH access, as well as the package manager (full-fledged opkg), are present.
Googled it, couldn't find anything about it. What are the possible solutions? Ideally, let's say, the speed limit for clients is up to 90mbit, it will not do the weather.
Thank you very much in advance!

Answer 1

There is no way to see this particular firmware, but if there is QoS, then you can try to configure a guaranteed channel for uMurmur through it.

Answer 2

Alternatively, if you have access to the firmware itself, configure QoS with handles, here is an example asterisk-support.ru/question/14672/qos-v-linukse/