Not seeing full 2Gb connection from ISP

[buckmurdock42]

 Hi All, I'm new to OPNSense, I got it setup last week and I'm curious as to why I'm not seeing a full 2GB connection when running a speedtest. I havent done anything fancy on my setup just yet, other than setup some shaper rules to help with Bufferbloat which isn't having the huge impact I was hoping. I followed this guide: https://docs.opnsense.org/manual/how-tos/shaper_bufferbloat.html I can fiddle more with that later.

However, my main question is why don't I see anything near 2Gb of speed when running a speedtest. My current setup is as follows:

    Dell Optiplex 5055 Ryzen 7 Pro 1700

    32GB RAM

    512GB SSD

    Intel X540-T2 10GbE Dual Port Adapter

    Zyxel XMG1915-10E 8-port switch (2x10Gb SFP's)

    Cable Internet - 2Gb/100Mb - Arris SurfBoard S34 Modem

I have the 2.5Gb port in the modem connected to the 10Gb WAN port in the Intel card, and then the other 10Gb port LAN port connected to one of the 10Gb SFP's on the Zyxel switch. I know my laptop is only connected with a 1Gb connection, but if I run the speedtest from plugin in OPNsense, it still only comes back with a max of around 900MBps.

If I SSH into the router and run 'ifconfig' I notice that the WAN port is showing 1000baseT full duplex. I set the drop down to 10GbaseT in the OPNsense config and it still just shows 1000baseT. If I'm only getting 1Gbps speed should I just contact my ISP and downgrade from the 2Gb to the 1Gb plan? I was really hoping to get that extra speed since I work from home.

Code Select Expand

ix0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
description: WAN (wan)
options=4803828<VLAN_MTU,JUMBO_MTU,WOL_UCAST,WOL_MCAST,WOL_MAGIC,HWSTATS,MEXTPG>
[Redacted IP and MAC Information]
media: Ethernet 10Gbase-T (1000baseT <full-duplex>)
status: active
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
ix1: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
description: LAN (lan)
options=4803828<VLAN_MTU,JUMBO_MTU,WOL_UCAST,WOL_MCAST,WOL_MAGIC,HWSTATS,MEXTPG>
[Redacted IP and MAC Information]
media: Ethernet autoselect (10Gbase-T <full-duplex>)
status: active
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

[meyergru]

The Intel X540 series can only do 1 or 10 Gbps, and neither 2.5 Gbps nor 5 Gbps. Thus, the common denominator of your WAN port and your modem is 1 Gbps. You will need a 2.5 Gbps-capable card like the X550 or a cheap I226. Do not use any Realtek based NIC.