I own a rackspace cloud server which worked fine. I used WinSCP and Putty to connect to it and manage it. Then I re-sized the instance adding some more memory. Now whenever I try connecting to it through putty it accepts the username but even for the correct password it returns "Access Denied".
There is nothing wrong with my putty settings because I can connect to my other Raskspace Cloud servers. Its not working only for this instance.
I restarted ssh several times, regenerated the keys, reinstalled ssh and openssh-server and so one bu no avail.