[AstroPy] IERS issue again

[Nicola Montecchiari]

Hello everybody,

after some months I am getting again an error while trying to connect to
the IERS.

Python 2.7.18 (v2.7.18:8d21aa21f2, Apr 20 2020, 13:19:08) [MSC v.1500 32
bit (Intel)] on win32
astropy==2.0.16
numpy==1.16.6

>>> from astropy.time import Time
>>> t = Time('2016:001')
>>> t.ut1
WARNING: failed to download
https://datacenter.iers.org/data/9/finals2000A.all and
ftp://cddis.gsfc.nasa.gov/pub/products/iers/finals2000A.all, using local
IERS-B: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify
failed (_ssl.c:727)>;<urlopen error ftp error: timed out>
[astropy.utils.iers.iers]
<Time object: scale='ut1' format='yday' value=2016:001:00:00:00.082>

Is this a known issue?
Thanks a lot for your help
Nicola

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