Buyer Beware: "WAN was exceptionally disconnected."
Like many others (on Amazon, Asus' site, etc.), I am experiencing the "WAN was exceptionally disconnected." It is a shame because the router is awesome when it actually works.
My question is: has anyone found a fix?
Background:
The Router loses its DNS lease, causing the Router to disconnect itself from the Cable Modem. Looking at the router's log shows a line that says "WAN was exceptionally disconnected." Based on my known experiences and others' comments, the disconnect occurs when the router is experiencing heavy load (e.g. downloading large files for a period greater than 10 minutes). For me, I lose the DNS lease around the 30-35 minute marker.
The problem dates back to when the Router was first released. Thus far (June 18th, 2012),
NO firmware (Asus or Custom) fixes the problem.
Two Potential Workarounds
Here are a few workarounds that I have read about, though I have NOT tried it myself.
1. Connect a junk $20 router between the Cable Modem and the Asus RT-n56u. Disable DHCP on the $20 router and set the rt-n56u into "Access Point Mode."
2. In the firmware page, dumb down the transmission rate to 10mbit. However, this option is not good enough for me since you're paralyzing the router.
Not an Isolated Problem
After paying $130 for this well-regarded, high-end prosumer router, I was expecting my situation to be isolated. I was dead wrong. There are many, many, many user threads out there talking about the same issue. Yet, Asus does not acknowledge that there is a problem.
Amazon Review 1 (Be sure to read the Comments below the Review)
Amazon Review 2 (Again, there are 5 pages of Comments below the Review. Page 5 has a vague response from an Asus tech, but at least the tech somewhat acknowledges the issue.)
Discussion on Google (Discussion is nested under the Custom Firmware maker's Google page)
Asus' Support Community Forum 1
Asus' Support Community Forum 2 (
HUGE thread about intermittent disconnects that was started by an Asus Moderator - note that the thread was closed)
Asus Support Community Forum 3
Asus Support Community Forum 4
Asus Support Community Forum 5