Problem with Access Point: WLAN1 under WLAN2?

Hi, I have WLAN1 as AP, frequency 5180, SSID “Pluto”, WLAN2 as WDS Station, frequency 5210, SSID “Pluto”.
When I enabled WLAN1 I lost the connection between WLAN2 and another Access Point.
I was thinking WLAN2 antenna has passed under WLAN1 antenna.
Is it possible?
If so, how can I “split” the two connections, maybe avoiding changing SSID?
Thanks.

Make sure that WLAN2 does not connect to WLAN1.
If there is no reason to use Pluto on the access-point, then you can select different SSID.
It is worth to use snooper and check channels load on the wireless network, probably you are using overloaded frequency.