because the protocol error, please try connecting to the remote computer again

https://portal.stradsolutions.com/index.php?rp=/knowledgebase/103/BECAUSE-OF-PROTOCOL-ERROR-THIS-SESSION-WILL-BE-DISCONNECTED.-PLEASE-TRY-CONNECTING-TO-THE-REMOTE-COMPUTER-AGAIN..html

https://support.huaweicloud.com/intl/en-us/ecs_faq/ecs_faq_0537.html

Because of a protocol error this session will be disconnected