Recently for OpenVPN 2.6.11 server responses containing non-printable characters (including new lines) have been rejected by OpenVPN.

I have to connect to a Watchguard VPN server, which appears to add a newline to the AUTH_FAILED challenge response message. Our IT team have configured the message, but did not add the newline character. This must be being added by Watchguard.

AUTH_FAILED,CRV1:R,E:292:dXhhYzAwOQ==:Please enter the code from your authenticator
[newline]

I notice that the new line characters were explicitly rejected by the recent update. I expect this is deliberate and Watchguard will need to change, but thought i would flag it here in case newlines can be permitted.

• OS: Arch Linux
• OpenVPN version: 2.6.11