user Connection speed

[kiran]

Hi,

I have 1252 LAP connected to WiSM's, 802.11n enabled in the network,

Broadcasted 2 SSID's HR and ADMIN
HR with no authentication and unsecured .... ADMIN with WEP enabled,

when user connect to HR SSID, he gets connected at 72Mbps speed,
but the problem is when user connects to ADMIN SSID, user gets connected at 54Mbps always,

can some one tell me the reason for the same.

[Surendra BG · Accepted solution]

Hi Kiran,

802.11 N speeds has some criteria.. they are..

The WLAN should be..

1>> Open auth with no security and Encryption + all MCS rates enabled + WMM enabled.

2>> WPA 2 - AES encryption + all MCS rates enabled + WMM enabled.

Since your second WLAN is using WEP, the N speeds are not expected!!

lemme know if this answered your question..

Regards
Surendra
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[kiran]

Thanks Surendra for fast response,

so you mean to say WEP will not support 'N' ... ok thanks...

so if I configure WPA2 with AES encryption it should connect at 72Mbps right ? I will try and let you know.

[Surendra BG]

Hi Kiran,

yes you are right.. if you configure the WLAN for WPA2 AES(TKIP disabled) as encryption with all MCS rates enabled.. you will get the N speeds..

Just FYI.. If you are running N over G radio, then expected speeds will be max 144 Mbps.. and N over A radio will be 300 Mbps..

Lemme know if you face any issue!!

lemme know if this answered your question..

Regards
Surendra
====
Please dont forget to rate the posts which answered your question and mark it as answered or was helpfull

[Surendra BG]

Hi Kiran,

802.11 N speeds has some criteria.. they are..

The WLAN should be..

1>> Open auth with no security and Encryption + all MCS rates enabled + WMM enabled.

OR

2>> WPA 2 - AES encryption + all MCS rates enabled + WMM enabled.

Since your second WLAN is using WEP, the N speeds are not expected!!

lemme know if this answered your question..

Regards
Surendra
====
Please dont forget to rate the posts which answered your question and mark it as answered or was helpfull

[Federico Ziliotto · Accepted solution]

Hi Kiran,

802.11n can be enabled only with one of the following security configuration:

1. Open (no authentication/encryption).
2. WPA2 AES (and possibly no other methods, so to force clients to use WPA2 AES only).

If your SSID is configured for WEP, 802.11n will not be enabled:
http://www.cisco.com/en/US/solutions/collateral/ns340/ns394/ns348/ns767/white_paper_80211n_design_and_deployment_guidelines.html

Regards,

Fede

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[kiran]

Thanks Fede for providing me with supporting document,

would you please mention which whitepaper to refer for the same ?

[Federico Ziliotto]

Hi Kiran,

Unfortunately that link was updated and the previous content I was referring to has been removed. Apologies for the imprecision.
Please refer to the following for configuring and troubleshooting 802.11n on Unified Wireless:
http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080a3443f.shtml#topic10

Regards,

Fede

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[sacha2011]

Hi Federico

unfortunately the link you gave is broken. Any other hint ?

Many thx

Sacha