That certainly hasn't been easy for you ― let’s check this out. Was it working before with your Chromecast with Google TV?
Reboot your WiFi router and Chromecast. Restarting the phone also helps. If needed be, use a different HDMI port and see what happens to the link between your phone and your Chromecast. Reinstall the voice remote. Also, this link will give you more information and troubleshooting. Follow it up with this guide.
If you’re having trouble getting the virtual remote to work properly, make sure that you have the most recent versions of the following apps:
Keep me posted.
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