If you receive this error in response to trying to make an SSH connection with a remote.it proxy URL and port, please run the ssh command again with the -v (verbose) option, e.g.
ssh -v -l pi proxy91.yoics.net -p 23568
If you see this message:
debug1: ssh_exchange_identification: Security Violation<br> Please logout and log back in<br>
it means that our server has detected two different source addresses used in this connection request. This can happen if you are behind a proxy server or using a VPN. It can also happen if you are using a mobile device or mobile hotspot for internet connection from the client side.
If you are using the remote.it API, please note that the "host_ip" metadata in the /device/connectd call must be your client's current public IP address, not the device's IP address.