question

Brent Batas (Lisk) avatar image
Brent Batas (Lisk) asked

SSL23_GET_SERVER_HELLO:unknown protocol

One of my players receives this error when trying to play the game (and the game is trying to connect to PlayFab):

PlayFabError(ServiceUnavailable, error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol, 400 BadRequest)

The game seems to work for most other players.

Can someone explain why this issue is happening and how to fix it?

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brendan avatar image
brendan answered

That is an odd one - here are a couple of the more common causes:

1. The wrong port is being used for the SSL call, somehow.

2. The ISP's DNS is missing the hostname, and the ISP is attempting to redirect you (by watching for the failed lookup and intercepting it) to a results page to offer other URLs.

In general, the best thing is for them to try the game from a different location, and on a different machine, if possible. Then, once they have a good internet connection, they can try their machine there, to see if it's something bizarre in the local settings that's causing the issue.

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