Author Topic: CWOP: DNS lookup failed.  (Read 439 times)

xairbusdriver

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CWOP: DNS lookup failed.
« on: July 22, 2017, 10:08:48 PM »
Saw another "Error 1000" 'too many files to upload' report from WC this morning. Looking at Cosole I found several problems with CWOP. Specifically:
Code: [Select]
[size=8pt]7/22/17 8:22:11.098 AM WeatherCat[515]: CWOP: Starting connection...
7/22/17 8:22:11.125 AM WeatherCat[515]: CWOP: Trying to connect to cwop.aprs.net.
...
7/22/17 8:22:41.234 AM WeatherCat[515]: CWOP: DNS lookup failed. Host cwop.aprs.net is not known.
7/22/17 8:22:41.262 AM WeatherCat[515]: CWOP: Trying to connect to first.aprs.net.
7/22/17 8:23:11.377 AM WeatherCat[515]: CWOP: DNS lookup failed. Host first.aprs.net is not known.
7/22/17 8:23:11.405 AM WeatherCat[515]: CWOP: Trying to connect to second.aprs.net.
...
7/22/17 8:23:41.515 AM WeatherCat[515]: CWOP: DNS lookup failed. Host second.aprs.net is not known.
7/22/17 8:23:41.546 AM WeatherCat[515]: CWOP: Trying to connect to third.aprs.net.
...
7/22/17 8:24:11.658 AM WeatherCat[515]: CWOP: DNS lookup failed. Host third.aprs.net is not known.
7/22/17 8:24:11.687 AM WeatherCat[515]: CWOP: Trying to connect to fourth.aprs.net.
...
7/22/17 8:24:41.809 AM WeatherCat[515]: CWOP: DNS lookup failed. Host fourth.aprs.net is not known.
7/22/17 8:24:41.841 AM WeatherCat[515]: CWOP:  ***FAILED***
7/22/17 8:24:41.870 AM WeatherCat[515]: CWOP: Next transmission in 30 seconds.
...[/size]
I didn't even know there were four different aprs nets!

Is this CWOP failure to respond more common than I would think/want?

While these failures were ~8 minutes before the FTP Overload error, could they have been part of the problem? Console seems to be less user-friendly in macOS 10.12 Sierra, but Ill go back and see if I can find a more specific cause for today's over-load problem. I do know it is not the converted video files I've tested lately. ;)

elagache

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DNS server problem (Re: CWOP: DNS lookup failed.)
« Reply #1 on: July 23, 2017, 11:27:50 PM »
Dear X-Air and WeatherCat troubleshooters,

Saw another "Error 1000" 'too many files to upload' report from WC this morning. Looking at Cosole I found several problems with CWOP. Specifically:
Code: [Select]
7/22/17 8:22:11.098 AM WeatherCat[515]: CWOP: Starting connection...
7/22/17 8:22:11.125 AM WeatherCat[515]: CWOP: Trying to connect to cwop.aprs.net.
...
7/22/17 8:22:41.234 AM WeatherCat[515]: CWOP: DNS lookup failed. Host cwop.aprs.net is not known.

Is this CWOP failure to respond more common than I would think/want?

Yes, something is wrong and most likely the trouble is with your ISP's domain name server.  Normally your ISP is supposed to provide DNS service and clearly it wasn't working properly.  I had similar trouble with Comcast and finally gave up on them and purchased an independent service from OpenDNS:

https://www.opendns.com/

Hopefully you won't have to do that, but I can report that our setup is much more reliable with OpenDNS than it ever was with Comcast.

Cheers, Edouard