topic (resolved) layer 3 adoption problem in Access Points - Indoor and Outdoor https://community.ruckuswireless.com/t5/Access-Points-Indoor-and-Outdoor/resolved-layer-3-adoption-problem/m-p/28846#M8083 We have one ZD1200 with one R710 at central. Works with wlangroups and apgroups. We have a tun OpenVPN connection to our 2nd site. Routing works, I can see the r500, which should be an Root-AP for another r500. Mesh is global on. But it seems that the mesh APs at 2nd site get no config. I turned tun vpn to tap and it seems that the APs get their config.<BR alt="" name="" rel="" target="" title="" type="" value="" /><BR alt="" name="" rel="" target="" title="" type="" value="" />A'm I right that I need tap (layer2) vpn rather than tun (layer3) vpn to config the remote AP's? Can I then turn tap to tun because this is the recommended vpn? thank you for clarification.<BR /><BR />Solution: Set MTU to a lower&nbsp; value like 1300 at ZD and AP. Config could not get througt the tunnel. Tue, 27 Aug 2019 12:56:12 GMT matthias_lorenz 2019-08-27T12:56:12Z (resolved) layer 3 adoption problem https://community.ruckuswireless.com/t5/Access-Points-Indoor-and-Outdoor/resolved-layer-3-adoption-problem/m-p/28846#M8083 We have one ZD1200 with one R710 at central. Works with wlangroups and apgroups. We have a tun OpenVPN connection to our 2nd site. Routing works, I can see the r500, which should be an Root-AP for another r500. Mesh is global on. But it seems that the mesh APs at 2nd site get no config. I turned tun vpn to tap and it seems that the APs get their config.<BR alt="" name="" rel="" target="" title="" type="" value="" /><BR alt="" name="" rel="" target="" title="" type="" value="" />A'm I right that I need tap (layer2) vpn rather than tun (layer3) vpn to config the remote AP's? Can I then turn tap to tun because this is the recommended vpn? thank you for clarification.<BR /><BR />Solution: Set MTU to a lower&nbsp; value like 1300 at ZD and AP. Config could not get througt the tunnel. Tue, 27 Aug 2019 12:56:12 GMT https://community.ruckuswireless.com/t5/Access-Points-Indoor-and-Outdoor/resolved-layer-3-adoption-problem/m-p/28846#M8083 matthias_lorenz 2019-08-27T12:56:12Z