You may see one of the following Useragents connect to your stream whenever you've logged into the MyRadioStream user area:
HTTP client connection accepted. User-Agent: `ADMIN LOGIN FROM XX.XX.XX.XX http://mixstre.am/zGFn'
HTTP client connection accepted. User-Agent: `ADMIN STOP FROM XX.XX.XX.XX http://mixstre.am/zGFn'
HTTP client connection accepted. User-Agent: `ADMIN RESTART FROM XX.XX.XX.XX http://mixstre.am/zGFn'
HTTP client connection accepted. User-Agent: `ADMIN FORCE RESTART FROM XX.XX.XX.XX http://mixstre.am/zGFn'
This is nothing to worry about, it's part of our system.
Whenever you log in, a quick check is made to ensure that your server has been restarted since the upgrade and is therefore operating correctly, this is logged as ADMIN LOGIN. If a restart is still required then you'll see a message in the user area to remind you that you need to restart your server to complete the upgrade. An entry is also added each time you stop or restart the server (ADMIN STOP and ADMIN RESTART).
Do not ban any of the IPs in these lines as it may result in either banning yourself from your own server or prevent the control panel from accessing your server for certain functions.