so i did few tests, please bare with me. (let me explain in short my network)
i got VDSL connection atm, this VDSL modem is connected to the wan port. the WAN IP i setup is 10.0.0.8/24 and the modem IP is 10.0.0.138.
the LAN is setup for 192.168.0.1.
here's some pictures:
ok so before i tried what u both suggested i took a pc and set it up with 192.168.2.2 , and in the router i just made address on the WAN (see in the picture , the disable rule) and then i used IPERF to test and i got 640Mbit.
then to see if its the PCI card that is limiting i changed it to be the LAN and i used BTEST to test with it, and i got the same results only 640Mbit (i was using LAN to LAN test).
then i did with BTEST to my PCI-E card and i got 970Mbit.
so from that i understood that the PCI is limiting.
then i read what both of u wrote , to test with BTEST to the WAN IP, well it work but it uses the LAN only. which means i got 950Mbit, while it should be 640.
here u can see it uses only the LAN, while i wrote the WAN ip:
so i did what u guys said and i doesnt work, but maybe i did something wrong?
and thank you for trying to help me out