I have been testing 6.41rc30 and so far it looks good and appears to solve the issue/request wanted/needed.
A huge thanks to Mikrotik for this
At this time, there is a new option/feature in the CLI (not in the Web interface or Winbox).
The new option/feature is "allow-signal-out-of-range=always"
I performed my testing on a single AP covering a small city which also has 16 other redundant APs also covering the same area.
On my test AP, I would often have 50 to 80+ client connections. This same AP would climb to 100+ client connections when all other APs were rebooted.
After the procedure noted below, I was able to drive down the number of client connections to 34 or less if I wanted. The rest of the other clients with weaker connections were then forced to connect to other redundant APs facing the same direction.
Thus - I can now achieve AP load balancing with a huge base of Mikrotik clients into a pool of APs facing the same direction. This better distributes the clients more evenly among multiple APs and now provides better average client throughput because I no longer have one or a few APs saturated with client connections.
What I did:
On my test AP, I first cleared all interface - wireless - access-lists
Then using the CLI I did this:
/interface wireless access-list
then using the CLI I did this:
add allow-signal-out-of-range=always authentication=no comment="Required signal strength to connect" forwarding=no interface=wlan1 signal-range=-120..-57
Note: The important part of the above line is the "-57" at the end. This is the value the AP uses to determine if the client may connect.
This -57 number is the required signal strength to connect. You may want to play with the -57 number in your testing.
This -57 number has nothing to do with the required signal strength to stay connected after rate-shifts.
The new "allow-signal-out-of-range=always" part means never check the signal strength again after the initial connection.
In my testing of this RC , I give it a huge thumbs up
Thank you Mikrotik
I look forward to seeing this in a current release
North Idaho Tom Jones