Ensure you turned off ALL features on the 655 in this mode, SPI, WISH, ALL Filters, WPS, and items like that.
I some cases when assigning addresses to this router, it will not how up on the host routers connected status list. I notice this one a few of these routers. SO you'll just have to know its there and working and write down the IP address. Again, this router isn't really meant to be an AP and wasn't designed as such so some features or functionality maybe unusable in this mode where an actual built DAP model AP does have these features and functions.