Here you are - this is the beta firmware I got from TP: http://www.mediafire.com/?7ext47lfabg9dse Please note that you use it on your own risk. It works for me (at least the missing gateway problem...

A nice guy from TP-LINK Technologies sent me beta firmware - I confirm, now the AP is working and gateway can be set manually.

Indeed, in this case AP gets gateway address over DHCP, but still don't get DNS address (why AP itself should know DNS? oh, for instance to have the traceroute in "diagnostic tools" work properly......

Just bought TL-WA901ND and... the same problerm! There is no "gateway" (and DNS) field in the network settings. How it is ever possible? Without this, the AP is obviously not working (no Internet...