AC66 Ethernet LAN Speed <= 100mbps

[Dilvish]

I just connected a USB 3 HDD to my AC66 in preparation for setting up network backup and sharing. I did a couple of backup tests and then downloaded LAN_Speed_Test(Lite). During my testing, I couldn't get over 100 mbps according to both the PC stats and confirmed on the router's traffic monitor.

My PC reports a 1 Gbps link and I'm using cat 5e between the PC and router. I'm running Merlin's 376.49_5 firmware.

Is there a known wired LAN performance problem?

If not, why is the wired ethernet so slow?

 

[L&LD]

The problem is not the LAN, it is the USB HDD you're using.

To get closer to LAN speeds, use a NAS with LAN connections.

 

[Dilvish]

The problem is not the LAN, it is the USB HDD you're using.

To get closer to LAN speeds, use a NAS with LAN connections.

While I'd love to get a NAS, I haven't found a decent one I can afford right now.

I don't understand how my USB HDD could be the bottleneck. It's a USB 3 enclosure. I understand the AC66 router only has USB 2 connectors, so it will be limited by USB 2's max speed, but that is 480 mbps.

Do you mean the AC66 router/firmware can't feed data to its' USB ports over ~100 mbps?

 

[L&LD]

It is a limitation of the cpu power available on consumer routers. That is why a NAS is recommended, which can more easily saturate the LAN depending on the hardware it has.

 

[RMerlin]

Broadcom's USB controller isn't exactly a top performer. It will rely heavily on the CPU.