If you're seeing no-video on your Roku, the steps below walk you through the most common fixes.
If you have sound but no picture, the video stream is likely being blocked by a security setting or an ad-blocker. Disable any browser extensions and check that your HDMI cable is fully seated. For mobile devices, try toggling your Wi-Fi off and back on.
TS Toolkit Link: /apperror/no-video/
Clear system cache: from the Home screen press Home 5 times, then Up, Rewind twice, Fast-forward twice. The Roku clears its cache and restarts.
Clear app data: highlight the channel, press Star (*) > Remove channel, then re-add it from the Channel Store.
1. Press Home button.
2. Highlight the channel (app).
3. Press Star (*) > Remove channel.
1. Press Home button.
2. Select Streaming Channels.
3. Search and Add channel.
Apps on Roku update automatically. To force: Home → Settings → System → System update → Check Now.
1.Press the Home button home on the Roku remote.
2. Scroll up or down and select Settings.
3.Select System.
4.Select Remove Channel (app).
4.Select System update.
5.Select Check Now to check for updates
1.Press the power putton on the remote to the device off.
2. Wait 10 seconds, press power button to turn the device on.Unplug Roku TV or Roku device from the power source.
1.Unplug modem from wall.
2.Wait 1 full minute.
3.Plug modem into wall, wait a few minutes for modem to reconnect to the internet.
1.From the Home screen go down to settings.
2. Go to System
3.Go to Power.
3.Go to System Restart.
4.Click OK on Restart.
5.The Roku then take about 15 seconds to restart.
D Help Site: https://help.disneyplus.com/article/disneyplus-streaming-issues
H Help Site: https://help.hulu.com/article/hulu-trouble-watching-on-site
Still stuck? Open the full interactive toolkit to track every step: