[OBSOLETE] MyQ Lite Door and Lamp Control (for Liftmaster/Chamberlain)

[HalD (Hal)]

Tried different ports on the ZyXEL?

Do you have additional Ethernet router(s) or switches downstream from the ZyXEL. What about other wired Ethernet devices?

FWIW, Google turns up a number of the CIGBU devices on eBay.