User's Manual

CHAPTER 7
TROUBLESHOOTING
59 smarttech.com/kb/171164
Issue Solutions
The video is choppy or the audio
isn’t in sync with the video.
l If your network is slow or congested, Screen Share is affected. Contact your
administrator.
l The Wi-Fi signal could be weak. Contact your administrator.
l Your device could be connected to a different access point than your display,
which can increase latency. Turn Airplane mode on and then off on your
computer to try to connecting to a closer access point.
l Sharing videos or playing video games with frequent screen updates requires
more network bandwidth. Try reducing the video quality to improve
performance.
See Evaluating the impact of Screen Share on your network data usage on
page34.
l Make sure the antenna is attached to the iQ appliance.
l Reduce your display’s resolution to 1920 × 1080 or lower.
l Make sure the operating system on your computer is up to date.
l If you’re using AirParrot, make sure AirParrot is up to date.
l If you’re using Chrome, the browser is version 52 or later and is up to date.
l If you’ve restarted your display and still don’t see the display’s name in the list of
devices, wait several minutes and then try to connect to the display again.
Which version of Chrome browser
supports Screen Share?
Chrome browser version 52 or later
The screen is not responding to
touch or you’re unable to write or
draw with the pens.
Touch interactions are not supported while using Screen Share.
Advanced troubleshooting for Screen Share
Issue Solutions
Mobile devices and computers can’t find
the display.
l School networks often block a number of network ports.
Ask the administrator to allow
o
TCPports 7000, 8008, 8009, 47000, 7100, 49228, 50259
o
UDP ports 62572 and 54780
o
If using Google Cast, UDP port 1900
o
If using Windows computer or a Mac computer, UDP port 5353.
See To allow mobile devices and computers to use AirPlay and Google Cast
to use the Screen Share app on page32 for more information.
l The display’s casting ID may not have propagated yet through the network
or may be cached on the network when it’s not actually available.
Wait several minutes and attempt to connect again.
l You’re using Miracast or an unsupported wireless screen casting method.
See the SMARTBoard 7000 series interactive displays user’s guide
(
smarttech.com/kb/171163).