Max retries exceeded with url error

[jathri]

Started getting this error yesterday:
HTTPConnectionPool(host='denod.cz', port=80): Max retries exceeded with url: /praha/ (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000231BEFB9180>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed'))

v0.41.1

Click to recheck and only few watched urls of this site are checked, the rest are giving this error. Urls can be loaded ok in browser though. See https://changedetection.io/share/9-Iq_r8lEdca. Is this some server issue (do not use docker)?

All urls are checked.

Windows 10 64
Firefox 112.0.2 (64-bit)

[jathri]

Is there any way to enable more verbose logging to see what server do with watched url?
There is only this if I understand it correctly:
Processing UUID 522eebae-54e2-4307-897e-c8b36de1380b Priority 1 URL http://denod.cz/praha/
Since it works normally in Firefox, is it possible that url does not have enough time to load? And how to increase timeout then?

[jathri]

#1326
This may help too...

[jathri]

It seems like "Errno 11001 getaddrinfo failed" is related (at least in some cases) to internet connection problems. Like device out of wired network or changedetection server trying to perform check too soon during system boot (normal or after hibernation). Could some internet connection check be implemented?
Changedetection also seems to have troubles to recover item after Recheck button is pressed. It is not able to overcome this error even after several attempts over time in some cases. User then need to make copy of watched item or add the same url again. Which is rather inconvenient since item history is lost. Note: this does not seem to be site specific. See #1423 where user states that: "Forcing a recheck resolves some of the errors but not every time."

[dgtlmoon]

its possible that its also not clearing out the error message too

[dgtlmoon]

Try the latest version! 0.42.1 might fix it.

[jathri]

TY, upgraded. Will try Recheck button when error occurs next time.
Also trying to use windows network dis/connect events to stop/start changedetection server. See https://www.groovypost.com/howto/automatically-run-script-on-internet-connect-network-connection-drop/.
Note for VPN users: Disconnecting from VPN network does not necessarily result in permanent internet connection drop, so check for this needs to be added (after some delay). See for example https://learn.microsoft.com/en-us/windows/win32/api/netlistmgr/nf-netlistmgr-inetworklistmanager-get_isconnectedtointernet.
Check if changedetection server is already running is also preferable (when connect event occurs).
This solution may not be suitable for very unstable connections that generate lot of these events.