This behavior is actually quite normal. This happens when the currently used password is blocked or blacklisted for security reasons. Performing a full virus scan of relevant devices and then choosing a brand new password (never used before) will get this issue fixed.
We are sorry to read that this situation persists recurrently. There are several possibilities and we would need to have access to your file to complete the checks required to provide a solution or or forward the problem to the team responsible. We have sent you a message in private to retrieve your contact information. Our technical support is also available if you prefer to contact us directly: http://www.videotron.com/residential/contact-us.
Hi! On the forum, when you are logged in, you will see a small enveloppe on the left of your name which is on the very top right corner. Clic on this enveloppe to see your private messages.
Have a great evening!