Hello,

I have this Netzwork:


DSL 1 WAN DSL 2 WAN
Mikrotik 1 Mikrotik 2
LAN Uplink LAN Uplink
WLAN Uplink WLAN Uplink
|---------------------------------------------------------|
WLAN 1 WLAN 2 WLAN 3 WLAN 4


DSL 1 should be the primary WAN out for LAN 1.
DSL 1 should be the backup WAN out for LAN 2 if the DSL 2 link goes down.
DSL 2 should be the primary WAN out for LAN 2.
DSL 2 should be the backup WAN out for LAN 1 if the DSL 1 link goes down.

LAN 1 and LAN 2 should primary connect over the WLAN.

Is this a way?
PPTP over DSL 1 and DSL 2 and a PCC for WAN.
LAN 1 to LAN 2 with MPLS / OSPF and WAN Backup route.