WPA2 broken when adding wl0.1 to new bridge

[bigben]

Hello,

I bought a RT-N66U. I flashed Merlin's latest sdk5 release (3.0.0.4_374.35_4-sdk5) because I like it better than sdk6.

Now I created a new bridge (br1) containing my newly created vlan5 and wl0.1 (guests 2.4ghz). This breaks the guests wpa2 authentication, clients cannot connect.

This should fix it:

nvram set lan1_ifnames="vlan5 wl0.1"
nvram set lan1_ifname="br1"
killall eapd
eapd

But it doesn't...