Belkin F9L1106 User Manual page 30

"Advanced" tab and select the rate property. Wireless client cards are usually set
to automatically adjust the wireless transmit rate for you, but doing so can cause
periodic disconnects when the wireless signal is too weak; as a rule, slower
transmission rates are more stable. Experiment with different connection rates
until you find the best one for your environment; note that all available
transmission rates should be acceptable for browsing the Internet. For more
assistance, see your wireless card's literature. If issues persist even at close
range, please contact Belkin Technical Support.
The Adapter does not perform or connection is unstable when computer
has a second built-in wireless network card (such as a mini PCI or
Intel® Centrino™).
This condition occurs if your computer has a built-in wireless card while your
Belkin AC Wi-Fi Dual-Band USB Adapter is also active. This happens because
Windows must now handle two active wireless connections.
You must disable the built-in wireless card from your computer under "Network
Adapters" in the Device Manager.
The Adapter does not perform or connection is slow when computer has a
built-in wired Ethernet card.
This condition occurs if your computer has an active Ethernet card while your
Adapter is also active. This happens because Windows must now handle two
active network connections. You must disable the Ethernet card from your
computer under "Network Adapters" in the Device Manager.
What's the difference between 802.11n and 802.11ac?
Currently there are three commonly used wireless networking standards, which
transmit data at very different maximum speeds. Each is based on the
designation for certifying network standards. The most common wireless
networking standard, 802.11n, can transmit information up to 450Mbps; 802.11a
also supports up to 54Mbps, but in the 5GHz frequency; and 802.11ac draft
specification can connect at up to 1.3Gbps (3x3, 256 QAM). See the following
chart for more detailed information.