I am suddenly unable to log into my connect manager from the admin panel. Although I can log in to this site, just not through my store any more. I changed the password to see if that was the problem and it hasn't made any difference.
I tried to access via firefox and safari and both the same result.
Does anyone know how to overcome this please?
I'm having the same issue.
I had this same problem. There may be corruption in your magento connect config file.
To fix it, delete or rename the file "[install path]/downloader/connect.cfg"
The file will be recreated after you successfully log in again.