802.11n usb wireless lan card slow download speed fix?

Answer 1

Any number of things may be causing a slow data transfer.

• If your router is handling multiple wireless connections, then you are only getting a portion of the available wireless bandwidth.
• If there are any other wireless routers/networks nearby, they may be using the same channel as your network, interfering with your bandwidth and forcing retries.
• Nearby electrical appliances may be generating interference causing your network to perform retries and slowing down your network. This could be a microwave, cordless or cell phone or fluorescent light fixtures.
• There could be congestion from multiple other data transfers taking up available bandwidth.
• There could be a problem with your internet modem, router , lan card, or the software driving them. Try rebooting them and see if it helps.
• There could be a problem with your ISP (Internet Service Provider) or their connection to your house.

Things to try:

• Try using a wired connection. If a wired connection works better than the problem is related to the wireless networking. If the wired connection still has a slow transfer, the problem may be in your router, modem or isp connection. reboot your router and/or modem to see if it clears the problem before calling your ISP.
• There are free utilities available to see who else is doing wifi and on what channels. If other networks are using the same channel as your network, change the channel setting on your router to an unused channel.
• There are web sites to measure transmission speed. See if it gets faster by moving your computer closer to the wireless router. If it does, than you may be getting interference locally.