I have 4 DAP-1522's bridging to a WNDR3700v2. Any device plugged into any of the 1522's can access the internet and can access shared drives etc. on any other device plugged into any 1522. I can access the WNDR3700 admin website from a device connected to a 1522.
However, no device plugged into a 1522 can access a device plugged into the 3700's ethernet switch. Likewise, the devices plugged into the 3700 cannot access devices plugged into 1522s.
Devices plugged into the 3700's switch can access the internet and can access each other.
I have changed network cables, power cycled all devices (PCs, bridges, routers, etc) at least once. I am running latest firmware on 1522's and 3700. In short, I've tried just about all the basic stuff.
It almost appears that the 3700's switch is acting as an isolated network. I would say that were true, except that I can access the router admin page from anywhere (any 1522 and directly connected to the 3700).
All devices are within the 10.0.0.x address range with a subnet mask of 255.255.255.0. Again, I have no problems accessing the internet. Just the problem of devices plugged into a 1522 communicating with devices plugged into the 3700 and vice versa.