802.11n Wireless USB Adapter

Q4. I can’t find any wireless access point / wireless device in Network tab.

Click Rescan for few more times and see if you can find any wireless access point or wireless device.

Please move closer to any known wireless access point.

Ad-hoc function must be enabled for the wireless device you wish to establish a direct wireless link.

Please adjust the position of ZEW2540P (you may have to move your computer if you’re using a notebook computer) and click Rescan button for few more times. If you can find the wireless access point or wireless device you want to connect by doing this, try to move closer to the place where the wireless access point or wireless device is located.

Q5. Nothing happens when I click Launch config utilities

Please make sure ZEW2540P is inserted into your computer’s USB port. If the Ralink configuration utility’s icon is black, ZEW2540P is not detected by your computer.

Reboot the computer and try again.

Remove ZEW2540P and insert it into another USB port.

Remove the driver and re-install.

Q6. I can not establish connection with a certain wireless access point

Click Connect for few more times.

If the SSID of access point you wish to connect is hidden (nothing displayed in SSID field in Network tab), you have to input correct SSID of the access point you wish to connect.

You have to input correct passphrase / security key to connect an access point with encryption.

The access point you wish to connect only allows network cards with specific MAC address to establish connection. Please go to About tab and write the value of Phy_Addess down, then present this value to the owner of access point to add the MAC address of your ZEW2540P to owner’s access point’s list.

Q7. The network is slow / having problem when transferring large files

Move closer to the place where access point is located.

Enable Wireless Protection in Advanced tab.

Try a lower TX Rate in Advanced tab.

Disable Tx Burst in Advanced tab.

Enable WMM in WMM tab if you need to use multimedia / telephony related applications.

Disable WMM – Power Save Enable in WMM tab.

There could be too much people using the same radio channel. Ask the owner of the access point to change the channel number.