Chromecast is able to connect to the Wi-Fi but cannot get internet

Here are some steps to troubleshoot this issue

1. Make sure your Catlink Scooper Pro is within the range of your Wi-Fi router.
2. Double-check that you are entering the correct Wi-Fi network name (SSID) and password during the setup process.
3. Restart your Catlink Scooper Pro and your Wi-Fi router to refresh the connections.
4. Ensure that your Wi-Fi router is using a 2.4GHz band, as some devices might not be compatible with 5GHz networks.
5. Check if there are any firmware updates available for the Catlink Scooper Pro that could potentially resolve the connectivity issue.
6. If possible, try setting up the device using a different smartphone or tablet to rule out any compatibility issues with the app.

If the problem persists after trying these steps, you might want to reach out to the manufacturer's customer support for further assistance with the specific device setup. They should be able to provide you with more detailed guidance and troubleshooting steps tailored to your device and app version.

Wi-Fi let's you connect devices Hassle-free without worrying about the wires and cables but sometimes Wi-Fi doesn't work and you need the prints in that case here's how to connect iPhone to HP printer without Wi-Fi. You would require a USB Cable for this and install the iPhone HP Printer app. Use the printer setup assistant to connect the printer to the Wi-Fi and then you can disconnect the USB cable. The printer should remain connected to the Wi-Fi. This would ensure that your devices have the internet without Wi-Fi. https://connectmyprinter.com/how-can-i-print-from-iphone-to-hp-printer/

Read the following Troubleshooting Step here: How to Solve the Alexa Won't Connect to Wi-Fi:

Step1: Check the internet connection is working, and the internet must be high speed.
Step2: Wireless router is not faulty and connects to the Alexa device.
Step3: Use the Same network on Alexa or Wi-fi router.
Step4: Alexa device must be placed on the Wireless range or near the router
Step5: Alexa device is not the mute condition otherwise Alexa shows Offline or creates the Alexa offline issues.
Step6: If any need then you can factory reset the Alexa device
Step7: Needs to check the Alexa App updated with the latest version.

If still there Alexa is not Working problem, or Alexa won't connect to the Wi-Fi issues, then contact our expert.

if your tv have mirroring... To set up screen mirroring on your Smart TV, press the Input button, and choose Screen Mirroring on the display of your TV. An HDTV is not not normally set up for screenmirroring out of the box. You will need an AllShare Cast Wireless Hub as a bridge to connect your HDTV to yourphone.

You probably need to connect to your new wireless router.

Open the Alexa app.
In the Alexa app, open the left navigation panel and then select Settings.
Select your device and then select Update Wi-Fi. If you're adding a new device to your account, select Set up a new device instead.
On your Echo device, press and hold the Action button for five seconds. The light ring changes to orange, and your mobile device connects to your Echo device. A list of available Wi-Fi networks appear in the app.
Note: The Alexa app may ask you to manually connect your device to your Echo device through your Wi-Fi settings.
Select your Wi-Fi network and enter the network password (if required). If you don't see your Wi-Fi network, scroll down and select Add a Network (for hidden networks) or Rescan.
Optional - Save your Wi-Fi password to Amazon: Any Wi-Fi passwords saved during setup automatically appear when you connect a new Alexa device to the same Wi-Fi network. The password is also remembered if you switch between saved Wi-Fi networks. For more information, go to Saving Your Wi-Fi Passwords to Amazon FAQs.
Optional - Connect to a public network: Enter any required information if you are connecting to a public network that requires a web browser to sign in, like a school or hotel. The information could be a pre-shared password, room number, or just a button to accept conditions for using the network. This information cannot be saved to Amazon. Contact the network owner for more information.
Select Connect. After your device connects to your Wi-Fi network, a confirmation message appears in the app.

There could be a choice, depending on the make and model of TV and tablet.

http://www.pcadvisor.co.uk/how-to/google-android/how-connect-android-tv-3533870/

Then again, with the right combination you may be able to connect by wi-fi. It is also pssible to connect via a Chromecast dongle. This is a wi-fi to HDMI device which plugs into a non-wi-fi TV.

http://www.google.com.au/intl/en_au/chrome/devices/chromecast/
.

Wi-Fi Protected Setup Button
If you have client devices, such as wireless adapters, that
support Wi-Fi Protected Setup, then you can
use Wi-Fi Protected Setup to automatically
configure wireless security for your wireless
network(s).

To use Wi-Fi Protected Setup, run the Setup
Wizard, or refer to the “Wireless > Basic Wireless
Settings” section of “Chapter 3: Advanced
Configuration".

Wi-Fi Protected Setup LED (Blue/Amber) It
lights up blue when wireless security is
enabled. The LED flashes blue for two
minutes during Wi-Fi Protected Setup.
The LED lights up amber if there is an error
during the Wi‑Fi Protected Setup process. Make
sure the client device supports Wi‑Fi Protected
Setup. Wait until the LED is off, and then try again.
The LED flashes amber when a Wi‑Fi Protected
Setup session is active, and a second session
begins. The Router supports one session at a
time. Wait until the LED is off before starting the
next Wi-Fi Protected Setup session.