I am SSHed into the Pi using PuTTY on a Windows computer. Everything works fine as expected but if I don't do anything on the Pi for roughly 5-10 minutes and then come back to it there is some weird delay (of about 5-10 seconds) before the SSH window becomes responsive again. This means for those 5-10 seconds, it does not take any inputs from my keyboard or selects the previous command if I push the up arrow on my keyboard.
I don't think this issue is an SSH problem necessarily. The same symptoms above seem to happen when I send a POST request to a webserver running on the Pi.
I have tried:
- Disabling power management on the network card.
- Disabling Bluetooth (Don't need it anyway, disabled to save power.)
- And everything that came up online regarding possible similar issues (although nothing worked)
- Seeing if it is overheating. Its not.
The Pi is running Stretch Raspbian (Linux raspberrypi 4.14.34+ #1110)
I'll attach the log file (var/log/messages) but I can't seem to find anything obvious in it: https://pastebin.com/YfUV9aF0