Slow wireless but fast wired

Hi all, hopefully someone can help.
I have been getting lower speeds on my laptop for a few weeks now. I'm getting 50+mb into the house but only max 15mb to the laptop and my phone. It often drops down to below 10 and sometimes 2!
Ive reset the modem and the infinity box on many occasions which helps get the speed back up to 13-15 when it's dropped to 2mb. I've re-installed the bt software and have power cycled everything with no success.
I only recently tried the wited connection and it gets 50+mb.
I wondered if it was my wireless card which is an atheros and my laptop is an i5 acer so fairly new. I've just ordered a wirless dongle to see if it helps. The current atheros card does not seem to support and 'n' connection.
I've installed and run inssider and the best link score I can get is around 55-65. I have no idea how to understand the inssider graph but guess this is not great.
I would really appreciate some advice. Oh I am considering buying a home hub 4.0 as I am using the 3.0 version.
Many thanks
Steve

Don't keep resetting the modem. This could cause the DLM (Dynamic Line Management) to interpret this as a faulty line and lower your speeds.
Wireless speed will usually be slower than a wired connection. If you are getting the same sort of wireless speed on both your phone and your laptop this would tend to rule out the wireless card on your laptop.
It could be that if you turned off the smart wireless on the home hub and select a fixed channel it would improve.
As you have already downloaded inSSider you need to run it and look for the channel that has the least amount of networks on it. Once you have found this you need to set the homehub to that channel.
See link how to change channel
http://bt.custhelp.com/app/answers/detail/a_id/14094/~/how-do-i-change-the-wireless-channel-on-my-bt...
You may find an improvement on your laptop with a wireless dongle but this won't help your phone connection. Have a good read through the forum about the wireless performance of the HH4 before you decide to buy one. You may be better to buy another make of router.

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Message Edited by scraig8877 on 07-30-2009 12:41 PM
Solved!
Go to Solution.

Do continuos ping ping 192.168.1.1 -t and check how many replies or RTO you will have. If you have replies even just a bit connect your PC to the modem to get internet connection and download the latest firmware and upgrade utility for your Router.
FIRMWARE
1. Go to www.linksys.com/downloads
2. Enter the Model Number of your Router
3. Choose Get Downloads
4. Select the Device Version
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UPGRADE UTILITY
1. Go to www.linksys.com/downloads
2. Enter the Model Numner BEFSR41
3. Choose Get Downloads
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