Check the certificate chain. [image: 2026-01-05 18_41_1.png] How does it look at your place? And why is there a self-signed certificate in the chain? And most important: do you think this is okay?
Workaround: download the file manually and copy it to the archive/skyfield folder of your WeeWX installation. Tomasz Lewicki schrieb am Montag, 5. Januar 2026 um 16:58:08 UTC+1: > Hi users. > > I'd like to ask how to get rid of message *ERROR user.skyfieldalmanac: > thread 'SkyfieldMaintenanceThread': error downloading ephemeris OSError - > cannot download https://ssd.jpl.nasa.gov/ftp/eph/planets/bsp/de440s.bsp > <https://ssd.jpl.nasa.gov/ftp/eph/planets/bsp/de440s.bsp> because <urlopen > error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: > self-signed certificate in certificate chain (_ssl.c:992)> *or rather > what to change in my configuration to download the file. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/c5de4a4d-3306-4eda-9757-fe4e9ba27223n%40googlegroups.com.
