DS212 SLOW with two routers

[Ephesian]

I am getting slow speeds on my DS212 (43MBps read and write, expecting 110 read, 54 write). Have tried disabling indexing and all packages; not much help. Data is below; suggestions?

Network setup:

DS212 (and laptop) connected to WRT310N V2 router (DD-WRT, gigabit, Wireless N, configured as switch). WRT310N V2 router connected to ActionTec MI424WR-GEN3I router (Fios, DHCP server, manual port forwarding).

(Do I understand correctly that since the laptop and NAS are on the same "switch" that the other router isn't engaged when they communicate?...)

Speeds:

As measured with Intel NASPT



As expected from Intel NASPT (from this article)



As measured with NAS performance tester 1.4:

Average (W): 43.89 MB/sec
Average (R): 43.62 MB/sec