Prerequisites for Troubleshooting
Activate and deactivate airplane mode on the streaming device.Turn off the Chromecast, router, and TV. Unplug their power cables, wait for a minute, then reconnect the cables and turn the devices back on.Update the firmware for the TV, device, router, and Chromecast.
1. Uninstall Chromecast App updates on the TV
If the recent Chromecast app update does not apply correctly to the previous installation on the TV, the app will not function. In this case, uninstalling the app’s updates should resolve the issue.
2. Try Another Network or Hotspot from a Device
If native incompatibility exists between your network (corporate or university) and Chromecast (built-in or external), it can cause casting issues on the TV. To diagnose this problem, temporarily try a different network. If you’re using a hotspot, it’s advisable to utilize a separate device for this purpose, so one serves as a hotspot while the other acts as a host.
3. Solutions for iPhone Casting Issues
If you’re using an iOS device, consider these solutions:
Enable Local Network Access for the App
iPhone restricts apps’ access to the local network until manually enabled. If the app on your iPhone can’t communicate with the TV on the local network, you may encounter Chromecast issues. To solve this problem, enable Local Network Access for the app in question.
Disable Private Address on the Phone
Your iPhone uses a software-based MAC address to shield its actual MAC address, preventing potential Wi-Fi tracking. However, this feature, designed for public networks, can cause compatibility issues with Chromecast or TVs on your home network. You can fix this by disabling the private Mac address on the phone.
4. Fixes for Browser-Based Casting Devices
Enable ‘Cast Devices on All IP Addresses’ (Only on Chrome)
If your router doesn’t comply with the IP schemes outlined in RFC1918/RFC4193, Chrome cannot communicate with the TV via Chromecast. However, enabling the “Cast Devices on All IP Addresses” in Chrome’s Flags settings resolves this issue.
Reset the Browser’s Experimental Features to the Defaults
Most browsers have experimental features which, due to their testing nature, could disrupt streaming content from the browser to the TV via Chromecast. Resetting these features to default may resolve the issue. To reset Chrome’s Flags to their defaults:
5. Fix for Android as a Casting Device
If the app’s data becomes invalid, the casting app cannot communicate with the TV on the local network. Furthermore, Google Play Services manages many background operations, including network communications, on Android. If this app’s data becomes damaged, it could also lead to issues. To solve this issue, clear the storage for the problematic app and Google Play Services.
6. Fix for Windows as a Casting Device
Windows PCs handle private and public network connections differently. To communicate with devices, like TVs, on the local network, the network connection type on the PC needs to be set to private. If your PC’s connection type is set to public, it blocks local network communications, making the TV inaccessible via Chromecast. To fix this, switch the PC’s network connection type to private.
7. Reinstall the Problematic App
If the latest update has disrupted the core modules of the active app, you won’t be able to use Chromecast on your TV. To remedy this, reinstall the troublesome app on your phone. To reinstall the Google Home app on an Android phone:
8. Edit Router Configurations
Many router configurations can prevent Chromecast from working with your TV. Modifying these configurations as discussed below should solve the issue. For each setting, log into the management portal of your router in a web browser or app.
Disable AP Isolation in the Router’s Settings
In some routers, this setting may be called Privacy Separator or Communication between Wi-Fi Devices, and you will need to disable these settings. To disable AP Isolation on a TP-Link router:
Disable the Smart or Auto Connect Feature of the Router
Disable Internet Group Management Protocol
Disable Airtime Fairness in the Router Settings
Disable Router’s MU-MIMO
To turn off MU-MIMO on an Asus router:
Disable WMM in the Router’s Settings
To disable WMM on a Netgear router:
Disable Beamforming in the Router Settings
Here’s how to turn off beamforming on a Netgear router.
Disable the Guest Network of the Router
To disable Guest Wi-Fi on a TP-Link dual-band router:
Enable UPnP in the Router Settings
To do so on a TP-Link router:
Enable the 2.4GHz Band and Disable 5GHz Band on the Router
To do this on a Virgin Media router: If the problem was cleared with 2.4GHz but you need to use 5GHz for other devices that may require a faster Internet connection, split the SSIDs of both bands, and enable the 5GHz band.
Disable the IPv6 Feature of the Router
To disable IPv6 for a TP-Link router;
Disable Guest Mode on the Chromecast
You may need to either connect the devices to the Chromecast Wi-Fi or use another network like the phone’s hotspot to disable Guest Mode on the device.
Enable the Zero Configuration of the Router
To enable Zero Configuration on an Xfinity router: If the issue persists, reset Chromecast, TV, and router to factory defaults. Verify if the problem is solved. If this does not work, reset the casting device to its default settings. If this fails in rectifying the problem, contact Google support for assistance.
