c. In the Property field, select Preferred Band. Then from the Value menu, select Prefer 2.4
GHz band. The DFS issue is solved.
• I cannot connect my notebook computer to the wireless display adapter under the Windows
8.1 operating system.
If the Windows 8.1 operating system is not preinstalled but is updated from the Windows 8 operating
system, your operating system might not have the Miracast driver. Contact the Lenovo Support to see if
the problem can be fixed by installing the Miracast driver on your notebook computer.
• I cannot establish a wireless connection between my notebook computer and the wireless display
adapter that has been connected before.
Depending on the operating system on your notebook computer, do the following:
– For Windows 7:
1. Click Control Panel ➙ Devices and Printers. Then remove the wireless display adapter in the
device list.
2. Connect your notebook computer to the wireless display adapter again.
– For Windows 8 and Windows 8.1:
1. Move the pointer to the top-right or bottom-right corner of the screen to display the charms.
2. Click Settings ➙ Change PC settings ➙ PC and devices ➙ Devices. Then remove the wireless
display adapter in the projector list.
3. Connect your notebook computer to the wireless display adapter again.
• The display on the external monitor or projector is either too big or too small.
When the display on the external monitor or projector is either too big or too small, adjust the size of the
display. Start the Intel WiDi program, and then click Settings ➙ Picture and Sound ➙ Ajust cropping.
You can tune the display by selecting the size from 0 (minimum) to 15 (maximum).
• The motion responds slowly on the external monitor or projector.
Start the Intel WiDi program and then click Settings ➙ Current Display Settings. In the Quality vs
Speed box, select Prioritize Speed.
• The display is blurred or the pointer speed is slow on the external monitor or projector.
Because the wireless display adapter requires high bandwidth of the Wi-Fi network, the possible cause of
this problem might be one of the following:
– Your notebook computer is equipped with a single-band Wi-Fi module, which is not suitable for the
wireless display adapter. Connect your notebook computer to the VGA-in connector on the wireless
display adapter with a VGA cable, or change to another notebook computer that supports a dual-band
WiFi network.
– Congestion occurred in the channel that the wireless display adapter occupies in the 2.4-GHz band.
There might be other devices that are using the same channel as the wireless display adapter. You can
use another channel in the 2.4-GHz band or in the 5-GHz band.
• I cannot locate the wireless display adapter in the Wi-Fi network list after I have set my notebook
computer to be connected on the 5-GHz band only.
Ensure that you set your notebook computer to use both the 2.4-GHz band and the 5-GHz band.
• I cannot share some digital media between DLNA devices.
The digital media format cannot be supported by DLNA.
18
ThinkPad Enterprise Wireless Display Adapter User Guide
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