Why is my Linux box dropping network connection?

Question

I am trying to send an email in the background at a specific time everyday in flask. The app hangs just about when I add a job, and I think I am having an issue with threading. The config looks like this

jobstores = {
    'default': SQLAlchemyJobStore(url='path_to_my_db')
        }
executors = {
    'default': ThreadPoolExecutor(5),
    'processpool': ProcessPoolExecutor(3)
        }
job_defaults = {
    'coalesce': False,
    'max_instances': 3
        }
scheduler = BackgroundScheduler(jobstores=jobstores, executors=executors, job_defaults=job_defaults, timezone=utc)
scheduler.start()

then am adding my job

def send_reports():
     msg = Message("Microphone testing 1, 2",
     recipients=["[email protected]"])
     mail.send(msg)
scheduler.add_job(send_reports, 'cron', hour=8, minute=23)

If i comment out scheduler.add_job line the app runs normally

In the virtual host I have the lines

WSGIDaemonProcess www.mycomapny.com processes=2 threads=5
WSGIScriptAlias / /var/www/html/myapp.wsgi

Will appreciate your assistance

Solution

Following Oldskool's comment, I changed the WiFi channel on the router, and WiFi on the Pi's been running for weeks now. I can only assume that's fixed it for some reason. There's only one other network in my area, and it had a really weak signal, so not sure why changing the channel would make a difference.

Comments

[Oldskool]

Seems like this is a common Pi problem: raspberrypi.org/phpBB3/viewtopic.php?t=13169&p=151044 .. one of the tips mentioned there, to change your Wifi channel, might be worth a try.