Hi MT,

since ROS 6.28 my non-Windows devices cannot connect with OpenVPN to my MT router anymore. The problem is that in ROS 6.28 the OpenVPN service sends the new option "topology=p2p" to the client.
This option is not supported on non-Windows devices, see https://community.openvpn.net/openvpn/wiki/Topology
When i downgrade to ROS 6.27, all is working fine.

Is this a Bug in v6.28 or by design and if the last, how can i change "topology" option to "subnet" ?

Thx!

eMuell

Hello, this is my first post over there.

And I had a same issue right now.
I use Android OpenVPN client connect to my router (which is RB2011UiAS)

After updated to 6.28, my phone (HTC One M8) can't connect VPN and gave me this message: Does anyone had same issue? Or any solutions?

I have this problem too.

After upgrading to RoS 6.28 on my RB2011 (where Open VPN server is located) if I try to connect with an android client ("OpenVPN Connect" on a Samsung Galaxy SM-G7102 running Android 4.3) I get the following:-

"Tun interface setup failed:
option_error: only topology 'subnet'
and 'net30' supported"

Have not tried any Windows devices as clients, but I have used another Mikrotik router and it's client does connect OK.

I too have downgraded to RoS 6.27 and all is working once more. RoS 6.27 was working fine anyway, but it will be good if this can be fixed.

I've wrote to MT support and got the answer that they will fix the issue in one of the future versions of ROS.

I ran into the same problem. Couldn't solve it at first. Then figured out, that all I needed to do, was set the Netmask in the OVPN Server settings to 30 or 31 instead of 32. Works like a charm then. This is in 6.34.3.

/M