MX keeps stopping uploading to website

[beeman]

I installed MX some while ago on a Pi 2 with an Oregon Scientific WMR 928 console. MX would occasionally just stop updating the website and the MX console would not load in Firefox. I could still get to the Pi with PuTTY so I just did a restart.

The WMR 928 was pensioned off in March and was replaced with a Davis Vantage Vue. The problem is still there.

I've attached the end of 2 MX diag files. My version of MX is Cumulus MX 3.0.0 b3035 - yes I know it is quite old

Thanks.

[steve]

The Microsoft system code is throwing an exception when it tries to access the serial port. That's all I can say, I'm afraid. Perhaps there's a problem with your serial/USB adapter. Are you using a powered USB hub?

[beeman]

Hi Steve,

Thanks for your reply. I'm not using a powered hub but I do have one somewhere. I'd worked out the problem was something to do with the USB port but hoped it was something obvious. I think this is a different Pi that the WMR928 was attached to but I may be wrong. It happened again this morning @11:00 I'll swap Pis and the USB cable.

Where in the world are you at present?
Regards
Dave

[steve]

You should try with a powered hub, a pi really needs one for a device which consumes significant power, like a weather station. That said, I'm not sure how much power a Davis stations needs to draw from the USB port, given that it has its own power supply.

At the moment, we are at a caravan park close to Inverewe Gardens in the North-West of Scotland. We're spending Easter here before moving off North again, probably arriving back home in Sanday a week on Monday, after seven months away.

This the view from our van today:

inverewe.jpg

[beeman]

Great view

I have one of these which I put in the line last night. As far as I could tell, no power was coming out of the USB port to feed the console.

I have the USB power meter as one of my other RPis has an RTL-SDR dongle which does consume a lot of power from the USB port.

[beeman]

I put a powered hub in yesterday but it failed again overnight. Do you think there is any point in getting a "better" USB cable or fitting a couple of ferrite chokes?

I have a Pi Zero W on order so I'll do a new installation on that and report back.

[steve]

Yes, I guess anything is worth trying.