I'm suddenly running into a problem accessing a Raspberry Pi 3B+ on my LAN from my Windows 10 desktop using Remote Desktop. Up until about a week ago everything had been running fine for well over a year. The Pi is running stretch and has all the latest updates installed via apt-get.
Now when I try to connect from within Windows the Pi generally crashes and reboots.
I'm unclear as to how to go about diagnosing this situation. Suggestions along those lines, as well as ideas as to what the problem may be, would be appreciated.
In exploring the logs I noticed that dnsmasq was complaining about being asked to apply a second IP address to a host that already had one. Researching that I discovered, via ifconfig, that the Pi's wireless interface -- which I thought I had disabled long ago -- was running, and had been assigned an address via dnsmasq.
Disabling the wifi interface by modifying /boot/config.txt eliminated that problem, and >>may<< have eliminated the xrdp crashing problem. So far I've been able to access xrdp from within Windows RDP multiple times without crashing the Pi. Fingers crossed :).