08-08-2013 08:35 PM - edited 07-04-2021 12:37 AM
Hi,
I have a 5508 WLC installed in an area of 1500 sq m. There are LAP which is active in that area. The users are complaining of weak signals in the area.
There is some iron construction going on in that area.
Would like to know whether that affects AP signal strength?
Solved! Go to Solution.
08-09-2013 05:01 AM
You have AP's up? In the cli can you IAS a show advanced 802.11b summary and ski do one for 802.11a
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08-08-2013 08:43 PM
Depends on how dense is the iron works.
Download inSSIDer and check out the wireless signal/propagation for yourself.
08-08-2013 09:10 PM
The site is at remote location. I have asked the local to provide to S/N ratio
Need to know what is the threshold level for s/N ratio
08-08-2013 10:35 PM
This document explains the possible causes of poor signal strength , and troubleshooting measures
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00800948cb.shtml
08-09-2013 04:16 AM
Well... If you have some sort of construction and they have equipment that naught cause interference and it might be blocking signal, then that's your issue. If it started when the construction began, then you have a good idea of why users are complaining. Unless you go out there and test, you will never know.
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08-09-2013 04:35 AM
Could be due to power signal setting? The power the client is getting might be low?
How can i check the power which is allocated to client via some command on WLC
08-09-2013 04:39 AM
Look at the GUI under the wireless tab. On the left side is 802.11bgn or 802.11an. That will show you what power level the ap is using. That's what you need to look at. Again, your troubleshooting something that really requires a site visit. Making changes to something that was working can affect the rf later. Power Level of 1 is the highest power setting for an ap. so you can manually set that if you want.
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08-09-2013 04:50 AM
I cant see the power setting.. I can see noise profile and interference profile etc.
For me to go to the site is not feasible.
08-09-2013 04:53 AM
You can see the power setting for the access points? It's in the GUI.
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08-09-2013 04:58 AM
AP Name | Radio Slot# | Base Radio MAC | Sub Band | Operational Status | Load Profile | Radio Role | Noise Profile | Interference Profile | Coverage Profile | CleanAir Admin Status | CleanAir Oper |
only these ar visible
08-09-2013 05:01 AM
You have AP's up? In the cli can you IAS a show advanced 802.11b summary and ski do one for 802.11a
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08-09-2013 05:18 AM
Thanks got it. The Tx powr is as low as 2 dbm and -1 dbm for some LAP.
Is tht the cause?
08-09-2013 05:20 AM
Yes that is low. You will want to set the min tx power to say 14 dbm.
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08-10-2013 05:45 AM
thanks so much for the help
I wanna ask the power setting we apply to LAP is that same as Tx power or is there some other setting//
Is there any config command to increase or level the Tx power to 14 dbm frm as low as -1 dbm?
08-10-2013 06:31 AM
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