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Old 06-17-2018, 08:31 AM   #1
DoctorOhh
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ERROR: Update Check Failed: Unable to reach the plugin index page

FYI, when in calibre - Preferences - Plugins - Get New Plugins I receive the following certificate verify failed error. Is this something unique to my current setup? I have no problem reaching the plugin index page via the browser.

Code:
calibre, version 3.26.1
ERROR: Update Check Failed: Unable to reach the plugin index page.

Traceback (most recent call last):
  File "site-packages\calibre\gui2\dialogs\plugin_updater.py", line 441, in __init__
  File "site-packages\calibre\gui2\dialogs\plugin_updater.py", line 65, in read_available_plugins
  File "site-packages\calibre\utils\https.py", line 202, in get_https_resource_securely
  File "httplib.py", line 1278, in connect
  File "ssl.py", line 353, in wrap_socket
  File "ssl.py", line 601, in __init__
  File "ssl.py", line 830, in do_handshake
SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)

Last edited by DoctorOhh; 06-17-2018 at 08:33 AM.
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Old 06-17-2018, 12:20 PM   #2
kovidgoyal
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Works for me. The plugin index site uses a private https certificate that is bundled with calibre. If it is failing it usually means you have some system software/malware that is proxying your https connections, and serving up its own certificates for all https connections. Because calibre checks against its bundled certificate, instead of the system certificate store (which wil havebeen modified by the proxy software), the check is failing.

If you haven't installed any new security software recently, it is likely malware.
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Old 06-17-2018, 02:51 PM   #3
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Works for me (W10 x64)
I suspect your A/V has firewalled secondary processes
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Old 06-17-2018, 07:26 PM   #4
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Quote:
Originally Posted by kovidgoyal View Post
Works for me. The plugin index site uses a private https certificate that is bundled with calibre. If it is failing it usually means you have some system software/malware that is proxying your https connections, and serving up its own certificates for all https connections.

Thanks. It works for me here at work too. I suspect it is self inflicted, I'll correct it when I get home.
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