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ASUS RT68U high CPU on both Core 1 and Core 2 on 3.0.0.4.386.xx

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geeyc5113

New Around Here
Hi, I not sure i am the only one having this issue or some of you facing the same issue. After I upgraded my standalone RT68U to any 3.0.0.4.386.xxx, when I download or upload any files, i.e movie from or to my local Synology cloud, I noticed that my wifi connection will be drops. And those access from external to my synology cloud will be disconnected. Upon further checking, I notice whenever I download /upload movie, my RT68U both core 1 and core 2 utilization will shoot up to 100% which causing my wifi drop and external access disconnected.

I have tried many suggestion from the forum, my issue still not fixed. At the end, I have to downgrade my RT68U back to 3.0.0.384.81049, the issue gone.

Would like to check if any latest version fix the issue? As at the moment, I dare not to upgrade due to this issue.
 
It may take a while for the router to settle in after an upgrade. Going from a 384.x to 386.x a full reset and manually configure is recommended.
You need to do this for the security fixes. The 384.x versions are not safe to run these days!
 
It may take a while for the router to settle in after an upgrade. Going from a 384.x to 386.x a full reset and manually configure is recommended. You need to do this for the security fixes. The 384.x versions are not safe to run these days!

Yes. I know i have to upgrade. But it was a nightmare. I dont think the router need to take so long to settle down. Previously i was having the issue for almost 1 month whenever i download or upload. The cpu is ok if i just perform normal web surfing. The router became unstable whenever i download or upload. Until i downgrade it back to 384.

I can only upgrade it if the issue has been addressed.
 
You have restored factory settings after updating ?
 
qt
No. Is it a MUST?
No. But you should factory reset and configure manually. Not recommended to use a restore file on an upgrade. Yes it is a bit of work. But your router should run like new. The AC68U is a very good router! I have an AC66U_B1 which is the same hardware as the AC68U and it runs well on the 386.x Asus code base.
 

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