Hi Gordon,
I will help you with your concern.
Please disable AVG from the system tray and check if you are able use Chromecast.
Refer the article to disable AVG: https://support.avg.com/SupportArticleView?urlname=Disable-AVG-Antivirus
How do I configure AVG to allow Chromecast to BT router/TV
Hi Gordon,
I will help you with your concern.
Please disable AVG from the system tray and check if you are able use Chromecast.
Refer the article to disable AVG: https://support.avg.com/SupportArticleView?urlname=Disable-AVG-Antivirus