If you have not received the welcome message with an activation link, request the welcome email again. Please also check for it in your bulk/spam mailbox as some spam filters might mistakenly classify the message.
Make sure you type in the correct username and password. Your username is case insensitive while the password is case sensitive.
Make sure cookies and JavaScript are supported and enabled in your browser.
If none of these work, please try to sign in using another computer or contact us. In your message, please provide us with as much information about your situation as possible (error message, browser/OS, screenshot if possible) so we can quickly identify and solve the problem.
Troubleshooting 
