Using wap AC with same SSID , I find dual band capable clients using 2,4 or 5 GHz apparently with random behavior.
What’s the reason a device choose a band instead of the other one ?
It would be preferable the 5GHz-AC would be used, and 2,4GHz one left for non-5GHz capable devices, which way can I achieve this ?
Thanks
It’s a client device choice, MikroTik can do nothing about that.
If both SSIDs are good quality signal, most modern devices choose 5GHz for the speed.
If there is some distance (walls), 2GHz signal is better at obstacles, so at one point, the 2GHz signal will be simply stronger than 5GHz. Then the device usually will choose 2GHz because of signal strenght.
normis didn’t mentioned the feature requests for 802.11r/k, Band Steering (e.g. http://forum.mikrotik.com/t/ros7-requests-for-wireless-features/132688/1 of http://forum.mikrotik.com/t/802-11r-k-band-steering/118200/1)
You could blink the 2.4 every so often.
I had a scheduler that would check if my TV ended up on a 2.4 radio. If it did… It kicked it off once per hour. This made it go back to the 5Ghz radio.
In a blind… “Can we force devices to 5 over 2.4.”
The ugly version of, “shutting off the radio every so often”, is enough to make dual band clients move to the 5. 2.4 only devices “just wait” for the radio to come back up.
The other way I dealt with this was to build a caps man system with 2.4 on and turned way down in the center of the install… With multiple 5ghz radios radiating out front he center.
This had the effect of the 5ghz signal “being heard first”. So clients that could use the 5GHZ, did.
Well… that particular scenario is a hotel with single SSID using capsman managing wapACs
I was doing a speed test , no more than 50/60 Mbps downstream (with a 200Mbps capable wan) , I quickly realized my smartphone was using 2,4GHz band and yes, probably due to signal strength, but once moved closer to AP it still stay hooked to 2,4 anyway…
At last … can be 2,4 GHz band considered deprecated with modern wifi devices nowaday ?
I could keep the main SSID for 5GHz band and add a new i.e. “ssid-2_4” for customers complaining about no desired SSID shown (or with older 2.4GHz devices they would only see “ssid-2_4” wifi network).
It wouldn’t be a fair feature but the newer devices are guaranteed to use ac network…
Unless… really a 2.4GHz network works better (in bandwidth) than a 5GHz one with poorer signal
Nope NOT AT ALL… NOT IN THE SLIGHTEST.
care to clarify? why not?
Why we should abandon 2.4GHz?
Should we abandon wirespeed 100Mhz or 10MHz as 1GHz is better?
Or maybe we should drop halfduplex in favor of fullduplex
or Fortran 
Nah, COBOL!
yes, why not? you did not answer, actually
Normis … really?
Why we should abandon 2.4 ? Go on with that. And you deactivate zylions of devices.
What a fun … going to buy chips and cola and waiting for the show.
EDIT:
Ask WISPs if they want to jump into “only 5GHz train”
Reply: NO!
Is the opposite: do not want 5GHz device of the client to interfere with 5GHz CPE…
The question is : does a dual band capable client performs better when it choose to use 2,4 GHz band (i.e. due to lack of 5GHz signal) ?
We know a poor RSSI-S/N on 5GHz leads to a drastic throughput drop.
The problem I experienced is the missed switch-back to 5GHz once signal reach better levels…
Still no answer, Bartosz. Anyone can act shocked, but giving reasonable opinion, that’s hard.
Still no clue what do want to hear/read from me? What is the real question I should answer?
if abandoning 2.4 has sense?
I wrote that you would “kill” zylions of working devices. Frankly speaking it is a stupid idea.
Is 5GHz always better than 2.4? No. Power of signal drops much faster?
Should we abandon 2G, 3G, HSPA, EDGE or LTE as 5G is now cool&trendy? Do you plan such a move?
Do you want to drop 10, 100 as 1000 MHz are better?
Do you plan to drop support for the SFP as SFP+ is better?
Why do you not drop 802.11 b?