SSL TLS Ciphersuites
The redirector is the only part that uses ssl, its response tells the client to use plain tcp in further connections. For Windows 10 this produces a problem as the ciphersuite supported by the game (TLS_RSA_WITH_RC4_128_SHA and TLS_RSA_WITH_RC4_128_MD5) is no longer supported by Windows 10.
Here the available cyphersuites from the game:
Here the choosen ciphersuites by the backend:
