Long story short: I have 6 Mikrotik devices, replacing 6 TP-links. After switching to Mikrotiks, the latency of Wifi clients is somewhere between 20 to 3000 ms with over 10% packet loss.
My devices are just transparent bridges, none of them use routing, dhcp or any other services.
The router is a linux server with DHCP and routing between multiple vlans.
Each of these 6 Mikrotik routers have 3 virtual AP’s on 2 different vlans.
Each of the virtual AP’s uses different authentication mechanism: one of them uses radius with active directory, one of them uses WPA passphrase, and the last one uses WPA, but we have a script changing the password every week that works.
I have usually between 10 and 25 clients connected.
Distance between each of the routers is not more than 30 meters, indoors, within walls.
I am not using cap’s man to setup the routers ( but i am open to suggestions )
If you need more info, I would be more than happy to provide them.
I need urgent help with my setup, since I have already about 6 months of bad wifi and my office clients can’t work with this wifi setup.
I would recommend switching to HAP AC for access points, CRS is a low powered device meant for switching, not access points. Your latency problems are likely due to interference in the crowded 2.4 GHz band since the CRS109-8G-1S-2HnD-IN doesn’t have a 5 GHz radio, or excessive CPU usage. A frequency usage / spectral scan or looking at resource usage can confirm the issue.
I will try this solution since I am thinking that many of the clients will connect to 5Ghz, because many devices have support for 5Ghz nowadays.
But I am still having some things that are not so clear.
Indeed, the 2.4Ghz band is very crowded, but why TP-LINK devices ( the cheap ones ) are working without any issues ? The band is not the same ?
Also, I need to mention that my devices are not doing any routing. They just take the clients and transport them via multiple vlans on LAN to our main Router which is not a miktorik device.
I have tested and there is no latency on the LAN part of the network.
As @R1CH above told you, do frequency usage scan and see/compare on which frequency are your Mikrotiks compared to other networks(even frequency between same Mikrotik APs close to each other is better to move to different channels.), you may try setting some other free channel.
Also you may try turning Adaptive Noise Immunity from advanced tab on wireless settings, set it to AP and CLIENT mode, it may help if you have some kind of environmental interference.
This helped me once for one client.
