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The speed you can get with a wireless connection is normally lower than the one you get with an Ethernet one. This can be even lower depending on the type of Wireless network, and the environmental conditions.
We would like to mention that the Intel® PRO/Wireless 3945ABG Network Connection has reached end of support so the options available for this adapter are very limited.
Here are some actions that can help you improve your wireless connectivity:
- Make sure you are using the latest driver for your wireless adapter, Version: 15.3.1 from 11/2012:
- Apply the configuration from the following advisory (some settings may not be available in legacy adapters): Recommended Settings for 802.11n Connectivity
- Disable Bluetooth* in you PC. This is normally done with a switch in the chassis of the PC, or with a keyboard combination.
- Check the Power options of you laptop, in the Advanced Settings for your Power Plan, then make sure that the Wireless Adapter is set to work at "Maximum Performance" when plugged in and on battery.
Thank you very much for your detail reply.
I'll try some of the actions you suggested me and I'll keep you posted of the outcome.
I've taken all the actions you recommended regarding the wireless adapter issue ( driver, s/w update - settings ) and finally I see no change
on the speed. The result remain 50% lower than the ethernet connection.
I would like to hear your opinion based on your knowledge regarding an external wireless usb connection which bybass the existing adapter of the
laptop? Do you believe that could be a solution ?
Keep in mind that the Intel® PRO/Wireless 3945ABG Network Connection is a legacy adapter that operates in 802.11a/b/g, with a maximum data rate of 54 Mbps. However, this is theoretical and is normally lower due to network overhead, wireless interference, access point configuration, etc.
You may try using a different Wireless channel and check if this helps, this is done in the access point so you may check with the AP manufacturer for more details.
Using a different Wireless Adapter could be an option, especially if your network is 802.11n, or 802.11ac. Since the 3945 is limited to abg connections.
Thank you very much for your support.
We are glad to help. Feel free to let us know if you require any further assistance.