Q: iCloud signing issue

I'm wondering if this is just me but went I use apple services genius bar, iTunes store, app store, or iCloud that require the sign in, the system routinely will tell me that the password is incorrect even though it is spell correct and store in the keychain.  After the three try it makes me reset the password.  I do this but now this locks out my other 2 devices which now require me to go to those devices and re login with a new password.  Now those devices trigger a message to the first device a message that they are login to the cloud.  This is 25 minutes of red tape that happen every time I directly use the services.  Does the password have a egg timer to make users reset after 20 days?