topic Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead. in Aerohive Migrated Content

No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

lchisholm — Wed, 05 Sep 2018 02:12:39 GMT

No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

lchisholm — Wed, 05 Sep 2018 02:13:05 GMT

Does anyone know how to fix this so I can use predictive heatmaps for this location?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

bruce_stahlin — Wed, 05 Sep 2018 04:28:44 GMT

Are you using cloud or on-prem, classic or NG?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

lchisholm — Thu, 06 Sep 2018 21:48:39 GMT

On Prem. 8.2r1

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Mon, 01 Oct 2018 20:09:13 GMT

If you open your Radio Profile, can you see what settings you have for the background scans? The APs would need to be able to complete background scans to report this information to the HiveManager, and if we have background scans set to not run when we have active clients on the network, then then could explain why we aren't see any results in your Maps when you check them.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Thu, 11 Jul 2019 06:54:44 GMT

I am having same issue. Radio Profile with " Enable background scanning" and " Enable background scanning when there are clients connected" are ticked.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Thu, 11 Jul 2019 20:01:17 GMT

I'd like to see how many background scans are actually getting through, could you send tech data from an AP so I can check this for you?

These guides review how to get tech data, either via the HiveManager GUI or the CLI of the AP:

HiveManager NG-https://thehivecommunity.aerohive.com/s/article/How-to-download-tech-data-in-HiveManager

Device CLI-https://thehivecommunity.aerohive.com/s/article/Collecting-Tech-Data-via-CLI

If you'd like to email the tech data directly to me, my email is communityhelp@aerohive.com.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Fri, 12 Jul 2019 03:06:28 GMT

I have got tech data. how to send it to you?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Fri, 12 Jul 2019 03:07:39 GMT

the file is attached.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Fri, 12 Jul 2019 03:13:53 GMT

Thank you for that tech data. I'm seeing this message a lot in the buffered log: Skip bg-scan since power-save client associated. Also, out of the 547 background scans requested since the last reboot of this device, only 25 have gone through. I'd recommend enabling background scans while clients are in power saving mode if possible.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Fri, 12 Jul 2019 03:28:08 GMT

I have enabled "background scans while clients are in power saving mode".

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Fri, 12 Jul 2019 05:03:54 GMT

It still doesn't get the heat map. also when doing this, I get No RSSI measurements in the range between -40 and -90 dBm are available for TWL132-SW03.

Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

Why it happens to Aerohive network switches?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Fri, 12 Jul 2019 19:14:29 GMT

Switches won't provide heat maps as they don't broadcast a signal. Could you send me new tech data so I can make sure background scans are getting through more consistently now?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Mon, 15 Jul 2019 05:58:31 GMT

here it is.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Mon, 15 Jul 2019 17:22:21 GMT

Thank you for that tech data, we are getting significantly more background scans through now. If you have APs still not showing their heat map, I would recommend opening a case with your VAD to troubleshoot further. Remember that switches will not give a heat map reading at all, as they do not broadcast signal.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Tue, 16 Jul 2019 07:08:25 GMT

Thanks. Will do.

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Tue, 16 Jul 2019 10:18:54 GMT

the command show acsp neighbour. can you please explain to me what the output meanings? thanks

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Tue, 16 Jul 2019 19:38:43 GMT

Absolutely, this guide goes in to detail on how to read that output, it's the first command discussed in this guide: https://thehivecommunity.aerohive.com/s/article/Radio-Frequency-Interference-NG

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

alden_xu — Wed, 17 Jul 2019 03:27:56 GMT

thanks for the link very helpful. what does "Interference utilization=25%" mean? is it very bad?

Re: No RSSI measurements in the range between -50 and -80 dBm are available for AP1, AP3, AP5. Please try increasing the RSSI range for calibration in global settings for maps, or clear "Calibrate heat maps" to use predictive heat maps instead.

samantha_lynn — Wed, 17 Jul 2019 03:59:21 GMT

That's not great, it means that 25% of the APs utilization is taken up dealing with interference rather than passing traffic as normal. Likely you'd see at least minor slow downs in your wireless speed, and some more sensitive or isolated clients may have frequent disconnections, thinking the signal is gone when it is in fact just weak or delayed.