11-26-2019 06:52 AM - edited 07-05-2021 11:21 AM
I need some some help understanding the Cisco Prime map. The AP on the right I think it shows the right colors, the dbm value. Why doesn't the AP on the left have the same strength. Is it something I need to look into AP settings.
11-26-2019 07:02 AM - edited 11-26-2019 07:02 AM
Hi,
Make sure you are looking the correct heatmap (2.4GHz/5GHz). Maybe some of the APs have lower power level or their radios are shut down.
11-26-2019 07:13 AM
11-26-2019 07:28 AM
11-26-2019 07:36 AM
I attached the wrong picture. The AP on the left there is off The AP on the left and on the right are on two different sides of the area. I am looking for -65dbm coverage and lower and I have huge areas not covered. That picture is 2.4GHz where I have left the power set to automatic. If I set it manually to 2 the area will be eventually covered but I don't get the strong dbm areas as I do on the right.
The radios are up, I'm scratching my head as to what is different and its all configured identical. As a matter of fact the power for the AP on the right is automatically set at 4, so its even lower than the AP on the left.
11-26-2019 08:27 AM
11-26-2019 09:14 AM
I understand its all predictive, my concern is that Prime is thinking that this AP is not offering strong signal strength. In theory my office is pretty straightforward, open space with cubicles, so if I see the right signal strength I won't have many problems on site (I do realize a site survey is a sure way to know what coverage I'm having). If Prime thinks this AP only offers this signal strength maybe something is not configured right in the AP itself and that's why Prime is reading it this way.
Cisco TAC thinks my environment is overcrowded and APs are adjusting their power level to really low, and this is causing issues with phones bouncing from AP to AP when they use the 5HGz band.
11-26-2019 10:22 AM
11-26-2019 11:13 AM
Because there are no users on 2.4GHz. Here is the 5GHz map, there are users connected.
I have had good results by manipulating the power level manually, I am trying to find a good combination of AP number and distribution that offers a good coverage, and configuring the power levels as automatic. That is the reason I'm using the Cisco Prime maps, but why are some APs generating normal signal strength and some are not, or why does Prime think that. Anything I should look at in the configs that could cause this map view.
11-26-2019 09:47 PM
11-27-2019 07:02 AM
The tx powers are all the same or similar. After modifying them manually for 2.4GHz, now the map looks right, not the same thing is happening for 5GHz (which is where I'm having problems)
I don't understand how Cisco can have a tool that works so bad, and can't even show me what the map would look like in "ideal" conditions. Now I don't know if I actually have those empty spots, I certainly know I don't need more APs.
12-02-2019 08:13 AM
12-02-2019 09:04 AM
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