1) Make sure you have the latest version of iOS or Android installed on your mobile device.

- For Android, it is usually under Settings – System/About Phone – Software Update.

- For iOS, it is under Settings – General – Software Update.

2) Make sure the CAST app is up to date.

- CAST app can be updated via Apple App Store or Google Play Store.

3) Make sure your device is connected to the same wireless network as your Chromecast.

- Chromecast needs to be on the same Wi-Fi network in order to connect.

Specifically for Chromecast viewing

Make sure the Chromecast's name does not contain any special characters.

- Special characters in the Chromecast name (like emojis or apostrophes) will prevent it from being seen by the CAST app.

- To resolve this issue, launch the Chromecast app on your casting device, select the Chromecast name, and remove any special characters.

- After changing the name of your Chromecast, restart the CAST app and look for the Cast icon when playing a TV show or movie. 

4) To minimize the jerky stream. When you are casting from your mobile device to a smart TV, it is best to deselect or turn off the Auto-motion function on your Samsung TV, or a similar setting on your smart TV. 

5) Do note that smart TVs have a resolution upscale feature when you stream directly through your CAST app on your smart TV, or AirPlay/Chromecasting onto a larger smart TV screen. With that, there will always be a lower quality pixel resolution when you compare a large screen versus your mobile screen stream.

1) Firstly, check your connection speed

- If you're watching CAST from your desktop or laptop you can check your internet connection speed at http://speed-portal.singnet.com.sg/SG/1G. 

If the issues persist:

a) Restart your computer

- Shut your computer down completely and restart it.

- Try CAST again.

or 

b) Restart your home network

- Turn off your computer.

- Unplug your modem and/or wireless router from power for 30 seconds.

- Plug in your modem and/or wireless router and wait until the indicator lights are back to its normal state.

- Turn your computer back on and try CAST again.

2) Improve your Wi-Fi signal

- Move your router to a new location to improve signal strength. You'll usually see better reception throughout your home if the router is in a central location.

- Move wireless devices such as cordless phones or microwave ovens away from your router. Wireless interference from these devices can create issues when you try to connect over Wi-Fi.

- Elevate your router off the floor. A router on top of a bookshelf or desk will give you better reception than a router placed behind or under furniture.

3) To achieve the most optimal viewing experience, we recommend accessing the live stream on Cast.Sg through your desktop or PC/Mac, with a LAN cable connection. 

Depending on your local broadband connection, your download speed of the live stream is dependent on your wireless/Wi-Fi settings, your router streaming speeds and the broadband service speeds you have with your broadband supplier.

1) Firstly, check your connection speed

- If you're watching CAST from your mobile or tablet, you can check your internet connection speed by googling “Network Speed Test”. 

If the issues persist:

a) Restart your device

- Turn your mobile device completely off.

-  Turn your mobile device back on and try CAST again.

or

b) Restart your network

- Turn off your mobile data on your mobile device.

- Turn on your mobile data and try CAST again.

2) Try a different internet connection

- If possible, connect your mobile device to a different internet access point to rule out any potential network configuration problems.