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    RT-AC87U - WiFi not fully disabled?

    Got a good deal on a AC87U so upgraded from a AC66U. Installed 380.68_4 right away and got to work getting it set up. Since I have a Ubiquiti AP, I have no need for the wifi on this router. In Wireless -> professional, disabled both the 2.4 and 5 Ghz bands. great done.... except maybe not...
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    RT-AC66U - stuck on 380.65_2

    Upgrade to 380.68 fails. arg! noticed the following in the messages. possibly all caused by dying hardware? Jul 31 17:00:14 kernel: NAND device: Manufacturer ID: 0x92, Chip ID: 0xf1 (Zentel NAND 128MiB 3,3V 8-bit) Jul 31 17:00:14 kernel: Bad block table found at page 65408, version 0x01 Jul...
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    RT-AC66U - stuck on 380.65_2

    Darn. Ok tried the following this time. lets see if a normal upgrade will work with the next release... nvram-save-r24a - nvram-save.sh factory reset upgrade to 380.67 (worked!) factory reset nvram-save-r24a - nvram-restore.sh
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    RT-AC66U - stuck on 380.65_2

    through debug logging, is there a way to identify which config setting(s) are causing the problem during an upgrade?
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    RT-AC66U - stuck on 380.65_2

    A month later, another release (RT-AC66U_380.67_0), and I'm having the same problem again. How do I troubleshoot exactly why the updates are not getting correctly installed? I really dont want to have to reset for every update; thats ridiculous.
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    RT-AC66U - stuck on 380.65_2

    Fixed. Backup settings / JFFS restore Factory Defaults Upgrade to 380.66_4 Restore settings -- lots of various settings were not correctly restored and needed to be reconfigured. Restore JFFS.
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    RT-AC66U - stuck on 380.65_2

    HW Ver: A2
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    RT-AC66U - stuck on 380.65_2

    Since the post states I'm already on 380.65_2, whats the point of even mentioning the very old fw? Anyways, since neither of those ideas apply, what else can be tried?
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    RT-AC66U - stuck on 380.65_2

    No usb devices connection. router is already on 380.65_2... why would I want to downgrade to 378.55 to then upgrade??
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    RT-AC66U - stuck on 380.65_2

    Long time merlin user and upgrades in the past have not been a problem. For some reason, unable to update to the latest 380.66_4. no errors displayed on the screen or in the system log after the update. Ideas?
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    Web CPU usage doesnt match TOP

    Interesting. Just the act of having the router web interface open on the home page which shows the cpu usage causes the download speed to drop by ~40 Mbit/s. the drop in the graph shows when I had the page open and then closed. Yes, this time the cpu usage did show near 100% too.
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    Web CPU usage doesnt match TOP

    Doh, completely missed the sirq! No apps or servers I'm aware of. AiCloud - all disabled usb apps - none installed Would that be somehow related to QoS? There must be a command/tool to dig into the sirq detail?
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    Web CPU usage doesnt match TOP

    Recently Comcast upgraded me to their 105 Mbps tier. Downloading from multiple sources can often max out the router it appears. QoS is configured for 120 / 10 mbps (because when QoS is disabled thats what the comcast speedtest reliably shows). Tonight I noticed was only downloading around...
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