since the latest version of SecuritycheckPro 3.1.10 i get blocked. Everytime i have to disable the plugin through phpmyadmin to be able to login. then i add my ip-address to the whitelist and still this doesn't help.
Latest version improve the way the 'session hijack protection' is conducted. Now you can choose if this rule is applied when both ip address and user agent change or only one of them changes (default behaviour). Are there log entries in Securitycheck related to this when you are blocked? If not, can you post a screenshot of Securitycheck Pro logs?