I had a lot of trouble getting the ER605 to work with 2 WAN's - in load balancing mode or in failover mode. My trouble was that I had double NAT mode on both WAN's circuits as it wasn't easy/possible...

@Wizz - The EAP225 seems to work well. It does all the things that the WA1201 promised. I have now bought a 2nd EAP225, the WiFi covers about 200 m2 of open indoor space and my customer seems happy....

Hi Wizz, I was assured by tp-link tech support that the TL-WA1201definitely does multi-SSID, multi-VLAN with no problems. I spent 10's of hours on this. Configure, factory resets, re-configure,...

@ploppy - Hi, a very similar problem here - 7 years later - on a brand new TL-WA1201 With multi-ssid, multi-vlan connecting to a tp-link TL-R605 managed by an OC200... Clients get the correct IP...