Hello Peter,
In order to access rally1.rallydev.com (Agile Central) you need a user created by your Subscription Administrator. I have checked your user account in CA Agile Central and was unable to locate it associated with any active subscription. If you would like to be added to your company's CA Agile Central Subscription please get in touch with your organization's internal CA Agile Central Administrators or internal IT department. I hope that helps.
Kind Regards,
Piotr