RT-AC86U LAN speed limit at 200mbps (Runner & Flow cache enabled)

[rafabhmg]

Firmware: 384.14_2
Model: RT-AC86U

Issues:
LAN speed is limit at 200mbps, but my WiFi speed can go up to 100% at 500mbps.
There's no NAT Acceleration setting, but HW acceleration shows:
Runner: Enabled - Flow Cache: Enabled

QoS Settings:
QoS Type: **Adaptive**
Queue Discipline: **sfq**

LAN-Switch Control:
Jumbo Frame: **Disable**
Spanning Tree Protocol: **Disable**

Im with the same problem as you. Wifi getting 240Mbps and using cable 96Mbps.
I`ve printed the status page and found this:

But I haven't found the right place to switch Lan ports to Gigabit.

 

[Treadler]

Im with the same problem as you. Wifi getting 240Mbps and using cable 96Mbps.
I`ve printed the status page and found this:
View attachment 27979
But I haven't found the right place to switch Lan ports to Gigabit.

Ensure you are using cat5e, (or higher) cables.

 

[isr25]

Im with the same problem as you. Wifi getting 240Mbps and using cable 96Mbps.
I`ve printed the status page and found this:
View attachment 27979
But I haven't found the right place to switch Lan ports to Gigabit.

The ethernet port is automatically negotiated speed. The ethernet LAN port on your computer or the cable itself might be limited to 100Mbps

 

[rafabhmg]

Ensure you are using cat5e, (or higher) cables.

Before updating the RTAC86U firmware my ISP speed was 120Mbps (AND LAN speed also). But yesterday I upgraded my plan to 240Mbps and also proceeded with a firmware upgrade. The lan speed decresead to 94Mbps and wifi turned to 240. And I’m confident thats a firmware problem. Any idea?

 

[Treadler]

Before updating the RTAC86U firmware my ISP speed was 120Mbps (AND LAN speed also). But yesterday I upgraded my plan to 240Mbps and also proceeded with a firmware upgrade. The lan speed decresead to 94Mbps and wifi turned to 240. And I’m confident thats a firmware problem. Any idea?

To be expected, if either your cables, or Ethernet LAN ports, are telling the router they are only good for 100mbps.
Cat5 cables for example, will force a 100mbps limit.

 

[rafabhmg]

To be expected, if either your cables, or Ethernet LAN ports, are telling the router they are only good for 100mbps.
Cat5 cables for example, will force a 100mbps limit.

My cables are cat5e :/

 

[Treadler]

My cables are cat5e :/

Great!
The ports connecting to your router are your next place to look.
Are they set to 100mbps? Are they set to ‘Auto’? Or not....?

 

[ColinTaylor]

Im with the same problem as you. Wifi getting 240Mbps and using cable 96Mbps.

Your problem is completely different than the one previously discussed in this thread (which was caused by a bad laptop USB to Ethernet adapter).

But I haven't found the right place to switch Lan ports to Gigabit.

There's nothing in the firmware to change. The speed is auto-negotiated by the hardware. Try completely powering off the router rather than just rebooting it.