slow speed WAN-LAN RB750G

hello.

I need help. I have 2 750G and they have the same problem. The speed between WAN-LAN port about 30Mbit max.
I tried different traffic: some user tried to download p2p files. Same speed. Then i Try to connect only 1 user and download film on local net (PC-switch-WAN750G-LAN-PC) (WAN-static IP, LAN - DHCP server) - same speed. 30Mbit sec MAX. If i connect PC-switch-PC - I have 70-80 Mbit.

Hi,
I’ve had the same problem with different routerboards.
I don’t know if your problem is like mine, the informations that you gave to us are really few.
Anyway, i’ve solved my issue decreasing the MTU on the Lan interface.
I suggest to don’t go under the size of 1300 byte.

look at this table you can download from http://www.routerboard.com/pdf/routerboard_performance_tests.pdf
rb750g.png