Epson L3156 wifi problem

[hubidubi]

Hi,

I have a wifi settings problem. I changed my router and I need to set wifi again. According to the documentation it should be fairly easy using WPS button on the router. Unfortunately the printer does not connect to the router. Two network leds blinks alternatively then they start to blink together which means error. I was able to set up other devices with this WPS settings before. Is there another option to setup the wifi for the printer?

Thanks