Migration from 2.5.x to OpenVpn 2.6.4 error

[Markco]

Hello,

I migrated from version 2.54 to 2.64 and I have a connection error:

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Compression or compression stub framing is not allowed since data-channel offloading is enabled.
OPTIONS ERROR: server pushed compression settings that are not allowed and will result in a non-working connection. See also allow-compression in the manual.
ERROR: Failed to apply push options
Failed to open tun/tap interface

How to fix the problem

Thanks

Marco

Sorry, I use a French/English online translator

[Fadim]

The error you're facing seems to be related to the compression settings being pushed by the server, which aren't compatible with your client settings. It's a known issue that's been tightened up in more recent OpenVPN versions to avoid misconfigurations.

The fix involves adjusting your client's OpenVPN configuration file. Please add the following two lines to your configuration file:

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comp-lzo yes
allow-compression yes

This should solve the issue and get your VPN connection working again.

[Markco]

thanks very much.
work fine now