Topology: 1 master node + 2 mesh nodes
Mode: Router
Environment: Home with multiple IoT devices, cameras, and persistent clients

For several days now, coinciding with high ambient temperatures, the Deco system has been experiencing frequent Wi-Fi client disconnections, general instability, and temporary loss of connectivity, without the device ever fully restarting.

This problem is neither isolated nor new: I have previously used Deco E4 and Deco X20, and the pattern is the same (actually, I had more significant problems before; now, I only have the one related, I suppose, to the temperature and the multiple disconnections).

The Deco XE75, despite having a much greater theoretical capacity, exhibits exactly the same symptoms under load.

The master node logs repeatedly show messages like:
tmpsvr: Error: memfree less than 10000 KB

Following this event, the following are observed:
* Massive disconnections of Wi-Fi clients (AP-STA-DISCONNECTED)
* Band steering/roaming system failures
* Internal process errors (CGI read error, tmp_trans_relay)
* Repeated disconnections of the same client (not random devices)
There is no complete reboot of the equipment, but rather a degraded system state.

I also wouldn't like a periodic reboot (I have a lot of IoT management technology implemented, which requires a stable LAN). 90% of the devices are "fixed," and I've set roaming to "no" for them. In general, I'm trying to manage all my devices on the local network (I have a dedicated home assistant), but I still have many whose firmware I haven't been able to reflash. I'm not saying the problem is solely with the decoder. It just struck me as odd that these problems would occur on a day with a feels-like temperature of 37 degrees Celsius. The nodes are positioned high up, as recommended for better signal distribution. But I understand that this complicates things.
Just in case chatgpt's analysis of the logs is incorrect, I'm attaching the logs from all three nodes.

Perhaps the problem isn't the heat. I understand that TP-Link can't prevent it from getting hot. But perhaps something can be done (I've tried many things due to disconnections, and I've seen some improvements, but the issue of running out of RAM, considering I have a small number of systems compared to the maximum supported by the XE75, worries me).

Thanks for any help!