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Somebody else getting constant 403 HTTP errors on CardDAV/CalDAV on sync?
Is this a IP black list?
The behaviour I see is inconsistent because apparently my DAV clients when logging on get a complete list of all available calendars and address books but cannot sync from / to them. It seems specific HTTP verbs are being blocked. Also, one DAV client is being let through whereas another client is not, from the same network with the same public IPv4 address.
Not sure if the most recent update of DAVx5 broke sync on Android 9. The device not working is on Android 9, the one that works is on Android 11.
My traffic originates from AS6805 and 77.8.0.0/15.
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