386.10 on AC86U losing all 2.4Ghz devices (seemed to be fixed in 386.9.0)

[bibikalka]

I had to check my Amazon order history earlier to remember when I ordered the router which was November 30, 2017. As I mentioned in a previous post I do have a fan blowing on the back of the router since May 9, 2022 (again checking Amazon order history). At the moment I have no need to upgrade my router as this router is serving my needs quite well. I do have my old AC68U on the ready as a temporary backup solution should the 86U fail and I need to purchase a new router. Current router temperatures in my ~75 degree F (24 C) room are: 2.4 GHz: 48°C - 5 GHz: 54°C - CPU: 68°C

Alright - it makes perfect sense now. It became hot in May 2022, you put a fan on it. Looks like temperatures is a really good parameter to track through time.

 

[heywire]

A quick google search for "asus ac86u thermal pads" reveals several guides, including on this forum.

Unfortunately no videos showing the teardown, but I think the pictures will do (Maybe some of you could make one?). Just make sure to order the correct thermal pad thickness (mentioned in said guides)

This would be the prudent thing to do if you have thermal issues, and gives a long term satisfactory solution. Remember, the AC86U will be relevant for years to come - after its useful life as a main router it will also serve as a perfectly good Aimesh node. (the day Asus drops the support for their AC routers, I'm out)

 

[Tech9]

Unfortunately no videos showing the teardown

The same as RT-AC68U - two screws under the label and plastic clips around the edges.

the day Asus drops the support for their AC routers, I'm out

They started dropping support for some HND models with AX radios already. No more 10-years support.

 

[streetsrule]

how can i check my temperatures?

 

[Tech9]

For stock Asuswrt:

Sign in to the GUI and click the link - http://www.asusrouter.com/ajax_coretmp.asp

 

[streetsrule]

For stock Asuswrt:

Sign in to the GUI and click the link - http://www.asusrouter.com/ajax_coretmp.asp

thanks!

fanctrl_info = ;curr_cpuTemp = "90.044";curr_rxData = fanctrl_info[3];curr_coreTmp_2 = fanctrl_info[1];curr_coreTmp_5 = fanctrl_info[2];

is this high?

 

[Tech9]

I remember this router showing about 75-80C CPU in 25C room. 90C is high whatever the reason is. 100C is the thermal protection threshold.

 

[bibikalka]

thanks!

fanctrl_info = ;curr_cpuTemp = "90.044";curr_rxData = fanctrl_info[3];curr_coreTmp_2 = fanctrl_info[1];curr_coreTmp_5 = fanctrl_info[2];

is this high?

Yes, too high. See this, and posts above and below:

386.10 on AC86U losing all 2.4Ghz devices (seemed to be fixed in 386.9.0)

with 51255 i only sometimes have this issue. i upgraded to 51915 and instantly i got unstable wifi with disconnecting devices. i downgraded again to 51255 which is more stable. i am beginning to suspect that other thing are involve i disabled OFDMA to see if things improve

www.snbforums.com

Somebody had a 70C router switch by itself to 90C router - probably aging. I have a fan on the back of mine, right side where the cpu board is. I drilled out cpu fan holes a bit, stuck in these magnets:

https://www.amazon.com/gp/product/B0BZYPNHBV/?tag=snbforums-20

Router has steel washers taped to it, so the magnets latch onto the washers.