In the past couple days my email client has been telling me that it couldn't retrieve my email and asked me to re-enter my password. It has been working fine for however long before 2 days ago, but all of a sudden my password now seems to be bad. Well, not remembering it off the top of my head, I went in and changed the password for my email account and it worked fine for a while, but now it again does not appear to be working. I know that the password is correct because I just changed it.
Sometimes it works and sometimes it doesn't. For example, It hasn't been working for a couple hours now, but I just took the account back online and it is downloading email messages, so obviously my password is now valid.
Any ideas on what could be causing this or what I can do to prevent it in the future?