Good Morning.
I am new to the forum and I am not very expert in these issues, I hope you can help me with this problem that I am presenting and can give me some idea of what it might be.
I have a small network here in my city that has 145 clients and in these two months I’ve had a lot of slowdown between clients, where the internet sometimes goes and comes back in some clients, it’s also very slow for several times in the day, for this same problem more than 10 clients have left and I have many complaints from others. I am scared 
.
I usually use LIteBeam M5 and Nanoloco M5 for clients and the APs I use are rocket M5 and I have several PowerBeam 400 M5s for some clients.
Check all the links of the clients, make changes in frequencies, among other things and I have not had any results.
I use the Mikrotik rb1100ahx4 with a main switch where the APs are connected ubiquiti edgepoint switch ep-s16
It should be noted that the speed problems began when installing the edgepoint switch ep-s16 switch.
I need to know if these teams have any configuration in combination to work effectively.
I also want to emphasize that the Mikrotik did not have security until recently since I installed it, maybe it is possible that someone has entered and I have modified some value to hurt me.
I hope in God that you can assist me in this case.
Thank you so much.