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AC86U sometimes powers completely off during reboot

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Curious if you're continuously rebooting it (and how? via the GUI? amtm? Command prompt?) or letting it 'rest' in between?

Reboot via GUI every about 5 min or so. Had some longer periods between reboots to test the VPN.
I don't use on this router AiProtection, Adaptive QoS, Traffic Analyzer or Custom Scripts. Don't need any of those.
 
Oops, reboot No.27 with stock ASUS power supply - no lights!

And the power brick is pretty warm to touch... OK, I have to bring some equipment tomorrow to see what exactly is going on here. For the time being I'm plugging back in the 65W power supply.



Please, share your experience with the 2.37A (45W) power supply.
The ac3200 plug diameter did not match so I could not try it. And I am too lazy to do a full reset of my ac86u, sorry.
 
5300 is limited to about 85 Mbps on VPN whereas the 86u can take you up to 220 Mbps.

Yeah and I have a 50/20 plan and I can do whatever I need with the AC5300 including streaming 4 HD cameras and streaming movies over a VPN connection. Thanks. - And it survives a reboot!!
 
Yeah and I have a 50/20 plan and I can do whatever I need with the AC5300 including streaming 4 HD cameras and streaming movies over a VPN connection. Thanks. - And it survives a reboot!!

I was in the same situation as you. I had 50 / 20 but then the provider had an offer to increase 50 to 100 for about 10 USD a month. They then increased 100 to 250 and recently they have bumped 250 to 500/100. Hence if you ask me, the 86u is also not cutting it. I'm actually considering downgrading and saving my 10 bucks so I can match to the router limit of 250. :)
 
I was in the same situation as you. I had 50 / 20 but then the provider had an offer to increase 50 to 100 for about 10 USD a month. They then increased 100 to 250 and recently they have bumped 250 to 500/100. Hence if you ask me, the 86u is also not cutting it. I'm actually considering downgrading and saving my 10 bucks so I can match to the router limit of 250. :)

Have to agree. I'm at 1Gbps up/down but not effectively using anywhere close to that. I may have to downgrade too (soon)! :)
 
Have to agree. I'm at 1Gbps up/down but not effectively using anywhere close to that. I may have to downgrade too (soon)! :)

Unless I hard wire, my wifi on the laptop can't go over 330 Mbps without VPN. It struggles. The only way to see true 500 mbps would be to hardwire and disconnect vpn and it then jumps to 500. I guess time to upgrade laptop as well :)
 
Unless I hard wire, my wifi on the laptop can't go over 330 Mbps without VPN. It struggles. The only way to see true 500 mbps would be to hardwire and disconnect vpn and it then jumps to 500. I guess time to upgrade laptop as well :)

I'm trying to save a little money and you're giving me great reasons to spend even more! :D
 
I'm trying to save a little money and you're giving me great reasons to spend even more! :D

No, I think you and I should save for now. The AX is still in draft and there aren't clients that can use it for now. I've searched but have not found any compatible with my laptop. or else I would have gotten the AX88. Regardless, the CPU needs to be upgraded to achieve higher speeds over VPN. I even searched for ways to mod my router with a better CPU. Too many roadblocks and the best at the moment is to downgrade :) I'm sure the tech will improve.

As for me to top it off the VPN provider has to build a custom protocol for it to work. Native OpenVPN does not work. I wonder when will OpenVPN leverage both the cores.
 
I was in the same situation as you. I had 50 / 20 but then the provider had an offer to increase 50 to 100 for about 10 USD a month. They then increased 100 to 250 and recently they have bumped 250 to 500/100. Hence if you ask me, the 86u is also not cutting it. I'm actually considering downgrading and saving my 10 bucks so I can match to the router limit of 250. :)
Yes unfortunately Im on FTTN 50/20 about 350 metres from the Node. I had 100/40 but my modem syncs at 66/37 with the 100/40 plan. Pretty useless paying the extra for 100/40 since I would be getting nowhere near the download speed for which Im paying. Australia does suck bad for Internet speed but it is what it is. Cheers
 
Words to live by. :)

Quality matters, most electronic products are not mere commodities that can be swapped without consequence. The quality isn't just in the hardware, it is also in what runs within too (even for something as 'primitive' as it can possibly be, depending on the product).

Take nothing for granted. Nothing. Ever. Always question your assumptions and you can't go too far wrong, for too long. :)
In a previous life, flight safety was a concern, and the adage was: never assume: check!. However, that’s far easier said than done: you normally don’t even realise you’re making an assumption. It’s only after an accident or a mistake or error of some sort, that you even realise that you’d subconsciously been making an assumption.

We make assumptions all the time; life might get difficult otherwise. We should at least do a visual check of the tyres before jumping into a car and driving off..... We don’t. “I assumed all 4 tyres were good when I drove off....”

You are so very right when you say always challenge your assumptions. To try and bring them from the subconscious to the conscious, you have to ask yourself what assumptions am I making. But it’s just human nature to slip back into auto-pilot for the routine stuff, where so many inherent assumptions reside.

Being human’s really hard work.
 
My suspicion for this issue is that some service causes this. I normally don't experience this issue that much but the first time was a reboot after turning on or off AiProtection. And with the whole testing of DoT and playing with DNS filtering it occurred more then normally. Mostly when I'm satisfied with a configuration a do a reboot afterwards. That's how I experienced it. Hope this comment pushes you guys a bit in the right direction.
 
It's from an old ACER laptop, HIPRO something. I just found it in my spare parts box. Had to change the plug only to match the ASUS router. It's actually rated 19V 3.43A, 65W. In theory it can hold double the load compared to original power supply.
Hi.
Is it something similar to 28247873_images_5087639328.jpg ?
Is connector equal to 5.5х1.7 mm ?
 
I also don't think it's a power supply issue. My equipment and most customers routers are also on a battery backup UPS too.

My personal RT-AC86U did this issue once or twice, right at the beginning (while I was doing my version of a Nuclear Reset on the brand new router and the rest of my network/clients).

Since the second full reset, I have not seen it since. This is a few months now (since March 2019).

My AC86 is also connected to a battery backup UPS when in production mode but when I have to take it off line to reprogram after a nuclear reset the wall wart is plugged directly in. when the AC86 is having issues it didn't seem to make any difference.
 
How about comparing serial #, hardware versions, batch #. Anything that might create a pattern. Maybe some of them suffer from a bad batch of components, like capacitors of a certain value? Does devices with power bricks with US or European prongs stand out? If no pattern can be found, then it probably boils down to a basic design flaw shared by all rt-ac86u, rt-ac2900 devices.
 
So, reporting back after doing a "nuclear reset" of my 86u using this post - https://www.snbforums.com/threads/major-issues-w-rt-ac86u.56342/page-4#post-495710 from @L&LD

So what i did was:

1 - A dirty flash from 384.12-beta2 to 384.12 stable before anything else.
2 - Turned the router off and pulled out every cable and usb drive for an hour.
3 - Got to step 2 of the guide - WPS NVRAM Erase - this is when i got the first problem! In other words, every time that i did the procedure of step 2 the router would no finish booting even after several minutes of waiting! In other words, I would hold the WPS button, then plug the power cable while the power button was on, then would try holding it for 10, 15 or 30 seconds(many tries with different times on holding the wps button) and i was always getting the same behavior... The router would start powering like it should, the led for lan port 4 would turn on and off right after and then the power led would come on but after a few seconds it would turn off, the router would stay with all lights turned off for one sec or two and then the led for lan port 1 would turn on and start showing activity(blinking, since on port 1 was the only cable connected to the router to my desktop). But the router would never come back online completely, my pc it would not receive a ip from the dhcp and only the led on would be the lan port 1 that would stay on and blinking, the other leds and lights would never come on even after 10 min or more of waiting and the web interface and wireless networks would also not come online!!!!! But if i then turn off the router and turn it back on, it would go to the wizard like it was suppose to do! So, i am very confused if the procedure was successfully or not.
4 - After that, I followed the rest of the guide until step 7 and after the reboot, when i was doing the minimal setup to connect to my isp like the guide says, when i was doing the vlan part(that is required by my isp to connect my pppoe) under lan->iptv, when i clicked APPLY the router reboot like it should to apply the vlan, the problem is that when it did the reboot i got the problem that is the main reason why this thread exists, in other words, router was completely black with all lights turn off! I had to power cycle it, for it to come back!

This problem is so fracking random and annoying!
 
The very idea of a reset is to remove all settings from nvram. You have to turn it off after a reset and turn it back on again, just like you did. You are then presented with a wizard to set it up anew.

I don't understand the point of "plug the power cable while the power button was on"? The safest and most reliable way to turn the router on is to push the power button. While you are trying to insert a live power plug in a device already turned on, you jeopardize that device. From a device that draws more current you can se sparks flying using that procedure.
 
The very idea of a reset is to remove all settings from nvram. You have to turn it off after a reset and turn it back on again, just like you did. You are then presented with a wizard to set it up anew.

I don't understand the point of "plug the power cable while the power button was on"? The safest and most reliable way to turn the router on is to push the power button. While you are trying to insert a live power plug in a device already turned on, you jeopardize that device. From a device that draws more current you can se sparks flying using that procedure.

I've found the nvram erase on the 86u weird, because the guide said that the router would reboot by itself and I've done this procedure of nvram erase on a rt-ac68u and the router rebooted itself after nvram erase with the wps button, while the 86u did not.

About the button being on while you have to plug the cable, then that idk to honest xP
 

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