AC87U 5G Overheat?

[smileyface]

Hi
I bought a ac87u and flashed Merlin right after I tested it.
I'm currently have no AC wifi device yet, but I'm getting a new laptop.
I used macbook pro (wifi n) to copy 30GB file from Synology 412+ over 5G wifi. Speed was great, It could get 35-38MBps.
However, during file transfer (abt. 5min), it disconnect and hang. I had reboot it to start again. but there was no problem when I plug in a usb fan.
I'm in the UK and temperature is about 10-15c. When it hang the temperature of 5G is 62C and CPU is 76C
anyone have this issue?

 

[DanielCoffey]

Those temps sound about right for me. With my 87U at idle here in Edinburgh (22C ambient) I see 44C, 70C, 78C for the 2.4GHz, 5Ghz and CPU sensors.

My 87U is flat on the desk rather than wall mounted but you could try elevating it a little. When I had my previous N66U I stood it on 4 little blocks to raise it 1cm from the desk for airflow.

 

[hank81]

Those temps are inside the usual limits for RT-AC87U. I doubt they have anything to do.
¿Does it happen always/frequently or just happened one time?