Asus RT-N16 Manual - Page 7

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Known Issues, Bugs, and Workarounds

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Hardware fix (capacitor) for RT-N16 wireless drop-outs [6]

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UPNP is currently not working for the RT-N16, so for now leave the feature disabled unless you want

a full CPU Load. FIXED with SVN Changeset #13527

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Access Restriction with MAC-Filter doesn't work on Asus RT-N16. FIXED Ticket #1319 (as of

12/18/09)

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On this router the reset button will only bring you to recovery mode. If you wish to restore defaults,

use the Red WPS button while plugging power in. Post By Eko

Rflow data reports only on upload traffic (Ticket #1139). Further discussion in this thread (only

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affects those using/enabling Rflow).

USB hard drives after build 15407: "The devs of dd-wrt have removed the loading of file system

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drivers from the startup of the firmware. They are now loaded on demand with automount. Well, this

presents a problem for those of us with USB HDD that automount doesn't detect. In order to load the

file system drivers at startup you need to add the following to save startup in the commands tab" for

more, see TechInfoDepot DD-WRT Notes

NVRAM K2.6 Limitation

This is included for historical reference. Use the installation instructions above to flash a K3X build.

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The RT-N16 only has 32K of NVRAM on k2.6 builds, and due to CFE limitations, some reported

reboots and resets due to running out of NVRAM. K3X builds have expanded the default nvram

partition via software.

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However, getting K3X to run on this model can be tricky, `erase nvram` can cause a soft brick,

requiring TFTP. redhawk0's procedure is here, also read the RT-N16 Condensed thread starting here

NVRAM Usage Reduction

Using traff (Traffic graph in Status_Internet.asp) or UPnP will cause the NVRAM to fill up quickly,

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causing router functions like ddns to stop functioning. Upon the next reboot the router will reset it self

to firmware defaults. Disable traff and/or UPnP to prevent this, or flush the traff stats occasionally.

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Note on traff: Status -> WAN -> (at the buttom) Data Administration -> button "Delete" flushes the

traff stats. Services -> Services -> WAN Traffic Counter -> ttraff Daemon: Disable -> Apply settings,

will stop the collection of traff data. You may however just choose to reset/delete traff data every

month, and the traff data will not take much room in the NVRAM

Note on UPnP: Access to UPnP settings: NAT/QoS -> UPnP. In newer builds (Spring 2012) UPnP is

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disabled by default.

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Note on monitoring NVRAM usage. In newer builds (spring 2012) NVRAM usage/max is displayed

on the front Web GUI at "Space Usage"

NVRAM Reduction Scripts

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Save the following as a startup script, it will remove initialized variables that are stored in NVRAM

and currently have no value assigned to them (This cleared up nearly 5K of NVRAM in my

experience).

Known Issues, Bugs, and Workarounds

Asus_RT-N16