Hi Hamidou,
Thanks for reaching out to the Community. I am really sorry that you are having issues with your Chromecast device connecting to Wifi. I'd be happy to help you. Let’s check it out.
It's not clear from your post the specific issues you're experiencing with your device, so I'm limited in the additional troubleshooting I can provide you. If you can share with me more details about the issue, that would be very helpful. I'd also appreciate it if you can let me know any troubleshooting that you have already followed.
Before we get started with any steps, let me ask you some important questions:
- Which model of Chromecast device do you have?
- When did the issue first start?
- What troubleshooting, if any, have you tried?
You can review this article to check the Chromecast specifications to tell which device you have. In addition you can check the following guides to Change the Wi-Fi network of Chromecast or Chromecast Audio or to Troubleshoot Chromecast connection.
Please keep me posted.
Best regards,
Mario
