Enabling "HW Acceleration" breaks the LAN connection (ASUS RT-AC66R)

Alexander Moore

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Jul 1, 2011
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I'm trying to optimize my network as best I can, and while flipping through the options, I eventually came to:

LAN >> Switch Control >> Enable HW Accelerator

That sounded clearly appealing to me, so I tried it. After applying the settings and the router reboot, I could not connect to it via LAN anymore. Connecting an ethernet cable to my computer results in "Limited Connectivity". I had to connect to it wirelessly to revert the setting back to "Disabled" to fix it.

The same issue happens on every computer. Oddly enough though, my XBox 360 can still operate via Ethernet with the HW Accelerator on. I dunno why my XBox would be treated differently than computers.

Anyway, any idea what's going on here? I've found threads that say QoS and so-forth must be disabled, and it is. So what could be the problem? Why does enabling the HW Acceleration break ethernet connections to the router from PCs?

Oh, and bonus question - Would enabling "Jumbo Frames" be helpful in any way? By what I understand, since pretty much the whole internet doesn't use Jumbo Frames, the option can only hurt unless you're on a local network where every computer and router is configured to use the same-size frames. Am I right?

Thanks in advance!

- Alex

PS: Yes, my firmware is up-to-date.
 
Solution
The default is to have the hardware acceleration on so you must have changed a option that now forces it to off. Worst case reset to factory default and start again.

Jumbo frames as you mention only does you good when you have a lan application that can take advantage of it.

The hardware acceleration is only used to increase the speed of nat translation from what I can find. This means it is only going to do anything when you are access the internet.
The default is to have the hardware acceleration on so you must have changed a option that now forces it to off. Worst case reset to factory default and start again.

Jumbo frames as you mention only does you good when you have a lan application that can take advantage of it.

The hardware acceleration is only used to increase the speed of nat translation from what I can find. This means it is only going to do anything when you are access the internet.
 
Solution

Alexander Moore

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Jul 1, 2011
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I did not change the option. It was off to begin with when I went and looked.

Would disabling the network security invalidate this? I disabled the network firewall because it's such a pain to deal with and might speed things up.