We have installed 33 x MR33 into our Warehouse. They replaced old Cisco 1240AG AP.
The clients devices are guns, truck terminals and voice terminals.
We are not having latency issues on the guns and voices terminals but only on the truck terminals.
I have disabled load balancing, the MR33, set the mininum bit rates at 11, disabled 802.11ax, enabled dual band operation 2.4 and 5 ghz, disable band steering.
We are still having latency on the truck terminals and 13 x MR33
Do you have any idea how I can fix the latency issue?
The RF devices are supporting 2.4 GHz only.
The latency are on the truck terminals only. Because the locked with a LCK-H (meaning waiting for host response) for at least 4 mn.
The others RF devices are fine.
This is the wireless health :
We are using one SSID for the 33 x MR33 APs.
'separation between band -> do you mean channel?
We have set auto channel. So, all Aps are using channel 11,6,1.
And these 3 channels are theorically not overlapping
We do not set channels manually.
We are using the 2.4 ghz band because the RF client devices are supporting 802.11b and 2.4 Ghz only
If the RF client devices are 802.11b then lower the minimum bitrate as 11Mb is the max for 802.11b. By setting this as the minimum, if they cannot connect at 11Mb they will wait and try again. I'd try 6 to start with but you could simply open it up completely.
If some devices are better than 802.11b and support 5GHz then I'd follow @NolanHerring 's advice and create a separate SSID for them on 5GHz.
Are the terminals inside the forklifts? Do they have an aux port for external antennas? The forklift has thick glass and caging often results in bad RF. Are you able to share the specs or the settings of the terminal?
What power level are the APs are running? I see the APs are installed with not much horizontal separation. At that height, they still see each other and turn their transmit power down to reduce CCI. Maybe you want to follow a zig zag fashion in the future if you can. What is the height of the APs?
Thks for you suggestion.
I already lowwer the birates at 11mb minimun.
We don't have RF devices supporting 5GHz. We have enabled both band
We are not using 5GHz band because we don't have RF devices supporting it. In this case is it better to set the 2.4 GHz only?.
The terminal are inside the forklifts.
The forklift has no thick glass and caging. This is the forklift we have and you can see the terminal
The AP height are installed at 12m from the floor
Power level for all AP is :
@celma972 for the bitrate, I meant if you only have 802.1b devices then set the minimum right down and disable the 5GHz. Though I'm not sure disabling 5GHz matters much.
I'd try only enabling the SSID in some APs as all the powers are low, probably due to overlap. You can do this by creating a tag on one AP, just type a label such as FL and press return, then setup a new SSID that is only advertised selectively when this tag is on the AP. Change a spare forklift radio to this SSID and see how it responds and how much coverage it has as you walk about (avoiding the other forklifts!). Once you have a map and if it works better, enable on another AP at the edge of the coverage by adding the same tag to that one and see how it changes. If it continues to work well then continue until all forklift areas are served.
We have a mix of 802.11b and 802.11g RF devices. So, setting the minimun bit rates down would be 11Mbs.
We are using the same SSID for the 33 x MR33.The radius server is Windows 2016 domain controller.
I will try your suggestion when I will be onsite the next time.
No, that's what the second email is about, if possible just advertise the current SSID from one AP and if it is better then start adding to minimise overlap of coverage.