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If the transmitter and receiver still no connection, please follow the
below step for pairing.
1) Power on the transmitter.
2) Power on the receiver till it’s on the main screen.
3) Press the receiver’s reset button and hold for 5 seconds till the
LED is flashing fast.
4) Wait around 30 seconds, the transmitter and receiver will be
paired automatically.
Q2. No or bad connection between the transmitter and receiver.
1) Move the HD transmitter and/or the receiver from the
immediate vicinity of the connected HDMI sources and Wi-Fi
equipment. These may affect the range.
2) Slightly adjusting the position of the transmitter and/or receiver
may already help.
3) Too much distance or obstacle between transmitter and
receiver. Try using shorter distances.
4) Disconnect the power adapters from the wall socket and
reconnect them to reboot the 4K Wireless HDMI KVM Extender
Set.
Q3. I do have picture, but no (or bad) sound.
The 4K Wireless HDMI KVM Extender Set supports up to 2CH PCM
stereo.
Check the audio setting in the settings menu of the connected
HDMI® source and manually set it to 2CH PCM stereo when the
automatic setting does not work.