I am using pfSense 2.0.1. I used speedtest.net to do bandwidth tests. I have 2 Mbit/s leased line connection.
Without pfSense I was able to measure 2 Mbit/s download/upload rate but when my machine was behind the
pfSense I was able to measure only 1.84 Mbit/s download/upload rate.
During the tests there were no any machines on the LAN. I tested with other speedtest sites. The results were
the same. The machine what the pfSense runs on is powerfull. CPU utilization is 0% regarding the dashboard.
Does anyone have any suggestions?
Maybe check either mtu or interface duplex / autoneg etc..
I have already checked the full duplex/half duplex settings. what mtu do you suggest?
It actually depends on the type of connection
but if there's pppoe in the path you could try 1492 or 1454 cf : http://www.mynetwatchman.com/kb/adsl/pppoemtu.htm
there is no pppoe in the path. the router ends a synchron leased line and the pfSense
connected to the router's lan interface. I really do not know what the problem can be.