Hello @Manuela26 

We have an instruction that might help, please give it a try and let me know if it helps, thank you.

What should I do if I fail to configure Tapo Camera?

If the set-up failed at the last  step after you put in Wi-Fi password , you could also try some suggestions here:

• Make sure the camera is close to the router and Tapo app is up-to-date on your phone.
• Verify the Wi-Fi password by forgetting your Wi-Fi network on cell phone :  

Go to Settings-> WiFi on your phone, Tap (or Long press  the router's WiFi name  ->Forget / Delete the network 
Please reconnect to your router WiFi it will ask for a password, will it accept your router password?

• Check  if main router has Advanced settings like  Access control/ parental control etc. that may block the camera
• If router wireless security type is on WPA3, try to use WPA/WPA2-PSK
• Change Router DNS to 8.8.8.8 
• (to help exclude issue)You may try to connect camera to a mobile Hotspot or different Wi-Fi 

If the issue persists, can you help confirm some details here:

• Model of router:
• Does camera connect to router directly or through extender? 
• Model of your phone and its IOS / Android version:
• Led Status on Camera after set up
• May I have a photo of error on APP?  

Thank you