A. 1. Check your internet connection: Ensure you have a stable internet connection. Try switching between Wi-Fi and mobile data. 2. Reset your password: If you are having trouble signing in, try resetting your password by tapping on 'Forgot Password?' on the sign-in screen and following the instructions sent to your email.

B. 3. Clear app data: Go to Settings > Apps > Hotels.com > Storage > Clear Data. This will reset the app and may resolve sign-in issues.