I have provided below what the Bank asked me to give you the following information, since they have helped with several options as you can see in order to fix. They said they have had other users who also have avast with these problems. I must tell you, I have another computer which also has avast, but it has Windows XP, Explorer 9, and has no problems. The issue is I believe with Windows7 and Avast.
“I am using an enhanced cookie with my bank’s Multi Factor Authentication (MFA). Their website is powered by Intuit and is going to be the new standard with MFAs. Intuit has heard there are issues with AVAST and using this new cookie. I am using Explorer 9 on Windows 7. I am selecting the option to leave a cookie on my computer to identify me to the website not go through the extra security. I believe that your software is taking off these cookies because I am able to get through only once without the extra security then it starts to ask again on my second attempt. I have added the institution to my exception list on Internet Explorer 9 all ready. What do you suggest?”
Avast doesn’t delet cookies, are you running any cleaners such as CCleaner as this will remove the cookie everytime it’s run or maybe your browser is set to remove cookies when it’s closed ???
Depending on how your bank handles Multi Factor Authentication, visiting it’s site with a different browser(or computer) may cause the site to invalidate the “special cookie”. Recently, while in the process of moving my financial information over to a new computer I was always getting asked the challenge question even though I’d asked the site to remember me (it always had before on the older computer). When I quit accessing the site from the old computer, I no longer got the challenge question when logging in. The other financial sites I use never had that issue at all.
Another site will send an email with a validation key (a set of random numbers) to your registered email address in it’s attempt to assure that you are in fact the owner of the account. While logged on, you must download the email and cut-n-paste into the form on the site. You are warned not to close the form window or the process must start over. Again, not using a second computer/browser ends that challenge and the site accepts the normal log-in.