Wireless Access

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Regular Contributor I

205 vs 105 Signal level

I had a customer recently swap out all of his AP-105's with AP-205's.

 

Since then, they have noticed (and I have verified onsite) a noticible 7-8 drop in signal level.  They have AP's in every other classroom. The problem is with the classroom where there isn't an AP. WIth the 105's signal levels in those areas at -56 and with the 205's it's around -63 which is causing some stations to disconnect.

 

AP's are all in the same AP group and I have the power levels as high as they will go.

 

Any help appreciated.

 

 

Re: 205 vs 105 Signal level

How are these mounted ?
Do you have 80 MHz channels on ?
Do you have the lower data rates removed on the SSID ?
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Regular Contributor I

Re: 205 vs 105 Signal level

They are mounted on drop cieling grid in the same locations as what the 105's were.

 

80MHz support for both bands is on. 

 

See attached for data rates. and 802.11a radio profile.

Guru Elite

Re: 205 vs 105 Signal level

Jaasperff,

 

They are not the same access point, so they do not have the same pattern.  What does your ARM profile look like?



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Re: 205 vs 105 Signal level

Your 11a basic rates are set too high and you shoudl consider disabling 80Mhz .

If you guys didn't do a proper channel planning and tested all your devices to make sure they support all the DFS channels (this is required to have a successfull 802.11ac deployment)
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Regular Contributor I

Re: 205 vs 105 Signal level

 

Re: 205 vs 105 Signal level

Please leave the VHT enabled that allows you to support your 802.11n clients
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Moderator

Re: 205 vs 105 Signal level

hi Jaasperff

 

What country code are you running ?

What software version ?

Can you send output of the following commands run against an AP205 and also against any AP105 that you might have

 

show ap allowed-max-EIRP ap-name <apname>

show ap allowed-channels ap-name <apname>

show ap show ap regulatory

show ap active

 

regards

-jeff

 

 

 

 

Guru Elite

Re: 205 vs 105 Signal level

You have modified too many settings.

You need to:

- uncheck handoff assist
- return the basic and transmit rates to defaults on both bands
- uncheck 80 MHz support in your arm profile
- make your min TX power 12 and max TX power 18

Too many things have been changed that will have a significant affect on client performance. Since you changed access points you need to remove those changes.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Regular Contributor I

Re: 205 vs 105 Signal level

I have made the changes you suggest cjoseph.

 

I will check with end customer and let you know if it made a difference and update post most likely tomorrow.

 

THANKS

 

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