It can be frustrating when your Samsung device keeps showing an 'incorrect password' message. This issue can occur due to various reasons, such as a typo in the password, network connectivity problems, or software glitches. Here are some steps you can take to fix the problem:

1. Check for Typing Errors: Ensure that you are entering the correct password. Sometimes, a simple typo can lead to the 'incorrect password' error.
2. Reset Network Settings: If the issue persists, try resetting your network settings. This can help resolve any connectivity issues that may be causing the problem.
3. Clear Cache Data: Clearing the cache data on your device can also help in resolving password-related issues.
4. Restart the Device: A simple restart can sometimes resolve software glitches that may be causing the problem.
5. Factory Reset: As a last resort, you can perform a factory reset on your Samsung device. This will erase all data, so make sure to back up your important information before proceeding.

If the problem still persists after trying these steps, you may need to contact Samsung customer support for further assistance.