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DSpero
Posts: 7
Registered: ‎12-07-2008
Location: North Georgia
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Wifi Link 5300 only shows 54Mbps on 5Ghz

Using a T500 with its Intel wireless card Wifi Link 5300, XP Pro SP3, and Netgear router N900 (WNDR4500). Configured router to use WPA2-AES. Intranet transfers to my Netgear ReadyNAS (Duo v2) are slow. Using a lan wired connection the transfer rate is about 38Mbps and the wireless rate is 15Mbps on either 2.4Ghz or 5Ghz. (transfer test used Totu Softs Lan Speed Test) Interesting the Windows tray icon for wireless connections show "Speed: 54Mbps" for both.

 

Should the 54Mpbs be showing at a higher rate?

Should the transfer rates be higher?

 

Any guidance will be much appreciated.

tanujhanda
Posts: 955
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

To connect the 802.11n wireless LAN AP with full line rate performance:


Configure your system to Advanced Encryption Standard (AES) encryption using Access Connections (or other wireless utilities). AES is supported by all secure authentication schemes such as WPA/WPA2.


Make sure your 802.11n AP is configured to AES encryption for 11n mode. Check with your 802.11n AP manufacturer for specific instructions on how to configure AES-based security.

 

 

Best Regards,

Tanuj


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DSpero
Posts: 7
Registered: ‎12-07-2008
Location: North Georgia
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

Thanks for the reply.

 

To confirm, I have already configured to WPA2-PSK (AES) and the wireless manager (wzc) just showing 54Mbps connection. The Netgear WNDR4500 is also at WPA2-PSK (AES) with throughput set at 450Mbps on both 2.4GHz and 5GHz.

 

What else needs to be changed to get a faster transfer rate?

billbolton
Posts: 1,841
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Registered: ‎12-02-2007
Location: Sydney, Australia - Best Address on Earth
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz


DSpero wrote:

 

Should the transfer rates be higher?

 


Yes, they should.

 

You seem to have the appropriate WiFi kit and configuration setting to be getting 3 x 3 bonded channel throughput on 802.11n, on the 5GHz WiFi band (up to 450Mbps) .... so I'm puzzled about where the problem might be.


As a first step, can you please delete the WiFi card driver and reinstall the current version from the Lenovo web site (http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS015011). 

 

Once you have it installed, go into the WiFi device driver and look at the power management tab.... make sure that the option to allow the system to power manage the card  IS DISABLED, but that all other settings are on defaults.

 

Then go into Access Connections and go to the Wireless Settings tab on the profile you are using to connect to your router. Make sure that under the Advanced Configuration Settings option,  the Power Save mode is set to Maximum Performance  (not Maximum Power Savings).... then select OK.

 

Plese post on how that impacts your throughput!?!

 

Cheers,

 

Bill

 

 


 

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I don't work for Lenovo
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DSpero
Posts: 7
Registered: ‎12-07-2008
Location: North Georgia
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

Still no success for a faster rate. Did what you outlined and here's the results:

 

LAN Speed Test Results (03-08-2012 at 23:04:36)
Computer Name: T500
IP Address : 192.168.1.107
Folder : \\Nas-a0-49-ce\media\Videos


                                      ---Writing---                                    ---Reading---
Packet length :           20,000,000                                    20,000,000
Time to complete:     7.0981264                                     6.4328327
Bytes per second:     2,817,645                                      3,109,050
Bits per second :       22,541,160                                    24,872,400
                                      -------------                                        -------------
Mbps:                          22.5411600                                   24.8724000

 

Properties on the Intel Wifi Link 5300 AGN are:

802.11n Channel Width (2.4GHz)                    default (20MHz)

802.11n Channel Width (5GHz)                        default (auto)

802.11n Mode                                                       default (enabled)

Ad Hoc Channel                                                   value (802.11a)

Ad Hoc QoS Mode                                                default (WMM enabled)

Fat Channel Intolerant                                         default (50%)

Mixed mode protection                                       default (CTS-to-self enabled)

Power Management                                            100%

Roaming Aggressiveness                                 default (50%)

Transmit Power                                                    default (100%)

Wireless Mode                                                      default (802.11a, 802.11b, 802.11g)

Driver version/date                                                14.3.0.6 / 10/27/2011

Allow computer to turn off to save power          unchecked

 

Can the internal adapter be replaced with another model?

 

My wife's laptop uses an Arthos AR9285 (bgn) adapter with Win7 and sees 65Mbps connection and transfer rates of 45Mbps.

Broadband 3G
JDay
Posts: 999
Registered: ‎01-06-2011
Location: Sacramento, CA
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

[ Edited ]
"Wireless Mode                                                      default (802.11a, 802.11b, 802.11g)"
802.11n is missing from that. Are you sure you're connecting to the 5Ghz AP?

 EDIT: Nevermind, checked mine and it says the same thing.

billbolton
Posts: 1,841
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Registered: ‎12-02-2007
Location: Sydney, Australia - Best Address on Earth
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

[ Edited ]

DSpero wrote:

Still no success for a faster rate. Did what you outlined and here's the results:

 

LAN Speed Test Results (03-08-2012 at 23:04:36)


First off...... you need to disconnect your thinking about the WIfI RAW LINK SPEED performance from speed testing against your NAS.

 

Once you have determined what is happening on the WiFi link, ONLY THEN you can start looking at your NAS speed performance over the WiFi link

 

Are you absolutely certain that you have 802.11n enabled for WiFi on your router for 5GHz band, and that you are connecting to the WiFi SIDD for the 5GHz band on that router (if you have used the same SIDD for 2.4GHz and 5GHz, bands, you should change the SIDDs so they are different from on another)?

 

Cheers,

 

Bill

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I don't work for Lenovo
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DSpero
Posts: 7
Registered: ‎12-07-2008
Location: North Georgia
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

_______________________________________________________________

BillBolton wrote:

First off...... you need to disconnect your thinking about the WIfI RAW LINK SPEED performance from speed testing against your NAS.

_______________________________________________________________

 

Yeah, I understand your point ... just wondering what real life expectation would be reasonable.

 

_______________________________________________________________

BillBolton wrote:

 Are you absolutely certain that you have 802.11n enabled for WiFi on your router for 5GHz band, and that you are connecting to the WiFi SIDD for the 5GHz band on that router ...

_______________________________________________________________

 

The short answer is "Yes". SSID for 5GHz is designated as ssid-5G. Its rate is set to 450Mbps (for the 2.4G also). The wireless management software (wzc) sees both the 2.4GHz (ssid) and the 5GHz (ssid-5G), but shows a connection speed of 54Mbps.

I am planning on upgrading from the current XP Pro SP3 to Win7 Pro to see if that makes a difference. I will have to do a clean install and I've begun to map out the steps (haven't found any step-by-step guidance from Lenovo ... have you?). Probably not a bad thing to clean out some of the extraneous overhead the computer has from 2.5 years additions and deletions.

Would like any other suggestions you have ... put me through the paces. I'm ready for it. Thanks for the time and thoughts.

billbolton
Posts: 1,841
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz


DSpero wrote:

 

put me through the paces. I'm ready for it.


Well, if you are only getting 54mbps, then it seems highly likely that you are running only on a single 20Mhz WiFi channel (though with 802,11n in a 20MHz channel you should be able to get ~130Mbps) , so the first thing to troubleshoot would be to work out why that is happening.

 

I walked away from XP long ago, so nowadays I'm not in a good position to advise you what to do with client-side WiFi issues for that environment.  If you get to a Win 7 OS WiFi clinet-side environment and are still having the issue, then there may be some more things we discuss then.

 

Cheers,

 

Bill

 

 

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I don't work for Lenovo
billbolton
Posts: 1,841
Topics: 68
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Registered: ‎12-02-2007
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Re: Wifi Link 5300 only shows 54Mbps on 5Ghz

[ Edited ]

DSpero wrote:

 

Yeah, I understand your point ... just wondering what real life expectation would be reasonable.

 


This what I get using 802.11n on the 5GHz WiFi band, on a ThinkPad T400 (SSD and running Win 7 Ultimate x64) with an Intel 5300 card, connecting to a Linksys e4200 router, which has a Gigabit Ethernet connection to my home "server" (7200rpm SATA HDDs and running Win 7 Ultimate x64)....

 

Computer Name: ThinkPad-T400  
IP Address: 192.168.1.145  
MAC Address: 00-00-00-00-00-00  
Folder or Server IP: G:\Temp  
Number of Test Packets (1-100): 10  
  Writing Reading
Packet length (Bytes): 1,000,000 × 10 1,000,000 × 10
Avg time / packet: 0.0901227 0.0630945
Time to complete: 0.9012271 0.6309447
Bytes per second: 11,095,982 15,849,250
Bits per second: 88,767,856 126,794,000
MBps (Mega-Bytes) 11.095982 15.84925
Status: Finished  
Date: 03-11-2012 at 17:58:19  

 

 

Cheers,

 

Bill

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I don't work for Lenovo