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Can Speed on an Intel 4965AGN wireless adapter be increased?

by jstefkovich / May 9, 2008 7:06 AM PDT

Intel 4965AGN miniPCI adapter in a Dell Inspiron 1520 running Vista connecting to a Linksys WRT300N wireless router. Consistenly connects at 130 Mbps. Desktop with a Linksys WUSB600n usb wireless adapter within 2 ft of the laptop connects to the same router at 270 Mbps. The lates drivers for the router and all adapters are loaded. Can the Intel 4965AGN adapter support speeds higher than 130 Mbps? If so, suggestions for configuration adjustments would be appreciated.

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(NT) All wireless NICs are not created equal. Nope.
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Intel 4965AGN Speed Boost - Get The Latest Drivers
by ajtrek / May 9, 2008 3:38 PM PDT

I have a Dell XPS M1330 laptop with Intel(R) Wireless WiFi Link 4965AGN with driver update of 1/17/2008 and Linksys WRT600N router. My speed is 270 Mbps. Access your router?s admin via the internet by typing its IP address in your browser and try the settings below. Be sure to record your current settings before making changes. Good Luck!

? Automatic Configuration ? DHCP
? MTU ? Auto
? DHCP Server - Enabled

Basic Wireless Settings
? Network Mode ? N
? Auto ? for all other parameters
? Enable ? SSID Broadcast


? Network Mode ? Mixed (if you have other products on your network that operate at 2.4GHz b/g)
? Auto ? for all other parameters
? Enable ? SSID Broadcast

Wireless Security
? WPA2 Personal (preferred)
? Encryption ? AES
? Key Renewal ? 3600 sec

? WPA Personal (alternative)
? Encryption ? TKIP
? Key Renewal ? 3600 sec

Wireless MAC Filter
? Disabled

Advanced Wireless Settings
? AP Isolation ? Disabled
? Frame Burst ? Enabled
? Authentication Type - Auto
? Basic Rate - Default
? Transmission Rate - Auto
? N Transmission Rate - Auto
? Transmission Power - High
? C TS Protection Mode ? Auto
? Beacon Interval ? 100
? DTIM Interval ? 3
? Fragmentation Threshold ? 2346
? RTS Threshold ? 2347

? SPI Firewall ? Enabled
? Internet Filters ?Check -Filter Anonymous Internet Request
? Leave all other boxes unchecked

? Web Access ? HTTP and Enabled
? Remote Access ? Disabled
? UPnP ? Enabled
? Allow Users to Configure ? Enabled
? Allow Users to disable Internet Access - Disabled

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Still Doesn't Connect At a Faster Speed
by jstefkovich / May 9, 2008 11:37 PM PDT

The wireless router is set as you have indicated. Could the problem be in the way the Intel 4965AGN adapter is configured. I don't seem to be able to access Intel Prowireless tools to configure the adapter and windows Vista is managing the adapter. Other suggestions?

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Intel (R) Wireless WiFi Link 4965AGN ? Management
by ajtrek / May 10, 2008 1:39 AM PDT

OK ? Try This?

Click > Start > Control Panel > System and Maintenance > Device Manager

Click plus sign (+) next to Network Adapters

Right Click >Intel (R) Wireless WiFi Link 4965AGN

Click > Properties > Advanced Tab

Select each parameter in the ?Properties" window (one at a time) and set the ?Value? as follows:
? 802.11n channel width @ Auto
? 802.11n mode @ Enabled
? Ad Hoc channel 802.11 b/g @ 11
? Ad Hoc power management @ Disabled
? Ad Hoc QoS mode @ WMM Enabled
? Fat channel intolerant @ Disabled
? Mixed mode Protection @ CTS to self Enabled
? Roaming Aggressiveness @ 3. Medium
? Throughput Enhancement @ Disabled
? Transmit Power @ Highest
? Wireless Mode @ 6. 802.11 a/b/g

Select Driver Tab determine that the date is 1/17/2008 and Version , if not update the driver.

Select Power Management tab and ?Uncheck? all boxes.

Click > OK

Click minus sign (-) next to Network Adapters

Exit Device Manger > Close all applications > Restart your computer

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No Change in Speed
by jstefkovich / May 10, 2008 3:26 AM PDT

Thank you. The driver updated to a one dated 3/14/08. I configured the setting as you recommended. Only the AdHoc QoS mode and the Throughput Enhancement were needed to be changed. All others were the same. After the driver update and the configuration changes, the connect speed was much more variable and usually less than 130 Mbps. I rolled back the driver to the 9/14/07 version and the connection speed is much more stable at 130 Mbps. Bottom line - no change yet.

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Your combo
by samkh / May 10, 2008 2:13 AM PDT

doesn't go faster than 130. WRT600N gets to 270 using the A band. Also Linksys APs don't have "Connect with Centrino" branding, so there's no certification they will work at highest speeds with Centrino NICs.

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by gsinelli / May 23, 2008 12:31 PM PDT

I am having the same problem as you. Did you ever get to the speeds of 270? If so how?

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Problem Solved
by jstefkovich / May 23, 2008 6:52 PM PDT
In reply to: speed

The problem is solved. Installed a Dell 1505 wireless mini PCI card. Initially, the 1505 had the same problem not connecting at more than 130 Mbps. However, after playing with the settings for the card (using the 40 Mhz frequency), the adapter connects at between 216 and 270 consistently throughout the entire house.

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