016-781 is no connection of any kind to the server.
017-714 is an unsupported encryption on the server.
Since you don't mention anything about what server you are attempting to use, I can't make much in the way of suggestions, and since you don't list what you updated the firmware to I can't know if you are on the latest, which is pretty much a requirement to get past the 017-714 fault if the server is using SHA-2 (Gmail and Office365 for sure use it)