You must have typed password incorrectly and that is why login error has appeared.
You may have forgotten the password and thus you cannot login.
The final possibility is that your account has been hacked. After hacking account, users must have changed your login credentials.
For all these possibilities, there are some definite troubleshooting measures. Here are the troubleshooting steps for you at a glance.
In this case, you can consider following the things that are given below.
At first, you should check password. Make sure that you enter it correctly.
Now, check CAPS LOCK of your keyboard. It should be turned off to avoid capitalization errors.
Certain key of your keyboard may have been damaged. This could also lead to the error.
If you have lost access due to hacking or forgetting password, you can easily regain access to your account by follow the tips below.
At first, you need to go to account recovery page of Quicken.
At account recovery page, you shall get option for entering your personal details. You can enter all the personal details as required.
Now, hit next to move on to the next page. At this page, you shall get a lot of options. You should choose an option as directed. For example, you may choose account recovery by email or through phone.
Follow further recovery instructions on screen carefully and then end the process of account recovery with seamlessness.
In this way, you can gain access to your account once again. If the issue happens due to hacking, you need to go for account recovery by answering security questions. Around 8-10 security questions shall be asked and users must answer them properly to regain access of their Quicken account.
If all these things do not help, problem with Quicken login could be quite critical as well as unusual. To deal with the critical errors, you need to pick up phone and Quicken tech Support toll free number +1-800-627-6047. Talk to customer support centre and get the best suggestions from the professional executives.