[GH-ISSUE #138] CalDavSynchronizer.DataAccess.WebDavClientException: Response status code does not indicate success: '502' ('BadGateway') #133

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opened 2026-02-25 20:30:58 +03:00 by kerem · 8 comments
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Originally created by @ghost on GitHub (Jun 9, 2016).
Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/138

i have this problem when try to sync...

CalDavSynchronizer.DataAccess.WebDavClientException: Response status code does not indicate success: '502' ('BadGateway'). Message:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>502 Proxy Error</title>
</head><body>
<h1>Proxy Error</h1>
<p>The proxy server received an invalid
response from an upstream server.<br />
Originally created by @ghost on GitHub (Jun 9, 2016). Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/138 i have this problem when try to sync... ``` CalDavSynchronizer.DataAccess.WebDavClientException: Response status code does not indicate success: '502' ('BadGateway'). Message: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>502 Proxy Error</title> </head><body> <h1>Proxy Error</h1> <p>The proxy server received an invalid response from an upstream server.<br /> ```
kerem closed this issue 2026-02-25 20:30:58 +03:00
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@aluxnimm commented on GitHub (Jun 9, 2016):

what server are you using? you need to investigate the server logs since this is a server error. does test settings work and the caldav url is correct and works in the browser?

<!-- gh-comment-id:224862709 --> @aluxnimm commented on GitHub (Jun 9, 2016): what server are you using? you need to investigate the server logs since this is a server error. does test settings work and the caldav url is correct and works in the browser?
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@ghost commented on GitHub (Jun 9, 2016):

image

same settings works on "kerio connect" on android device

i'm using this server: https://dav.poczta.home.pl/caldav/57/

and recieve this: The proxy server received an invalid response from an upstream server.<br /> The proxy server could not handle the request <em><a href="/caldav/57/">REPORT&nbsp;/caldav/57/</a></em>.<p> Reason: <strong>Error reading from remote server</strong></p></p>

<!-- gh-comment-id:224875187 --> @ghost commented on GitHub (Jun 9, 2016): ![image](https://cloud.githubusercontent.com/assets/19834992/15928993/7ec8a4e0-2e4a-11e6-8ef7-6bfd5eb4e574.png) same settings works on "kerio connect" on android device i'm using this server: `https://dav.poczta.home.pl/caldav/57/` and recieve this: `The proxy server received an invalid response from an upstream server.<br /> The proxy server could not handle the request <em><a href="/caldav/57/">REPORT&nbsp;/caldav/57/</a></em>.<p> Reason: <strong>Error reading from remote server</strong></p></p>`
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@aluxnimm commented on GitHub (Jun 9, 2016):

The server responds very slow, maybe some timeout issues? You can increase timeout values, see readme.

<!-- gh-comment-id:225029782 --> @aluxnimm commented on GitHub (Jun 9, 2016): The server responds very slow, maybe some timeout issues? You can increase timeout values, see readme.
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@ghost commented on GitHub (Jun 10, 2016):

calDavConnectTimeout set to 00:05:00 and still the same problem.

When I change the server address to https://dav.poczta.home.pl/ and press 'Test Settings' program automatically changes the address to https://dav.poczta.home.pl/caldav/57/

My provider says that i should put dav.poczta.home.pl in address bar but i can't.

<!-- gh-comment-id:225160571 --> @ghost commented on GitHub (Jun 10, 2016): `calDavConnectTimeout` set to `00:05:00` and still the same problem. When I change the server address to `https://dav.poczta.home.pl/` and press 'Test Settings' program automatically changes the address to `https://dav.poczta.home.pl/caldav/57/` My provider says that i should put `dav.poczta.home.pl` in address bar but i can't.
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@aluxnimm commented on GitHub (Jun 10, 2016):

can you provide a test account?

<!-- gh-comment-id:225265296 --> @aluxnimm commented on GitHub (Jun 10, 2016): can you provide a test account?
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@ghost commented on GitHub (Jun 13, 2016):

Sure, give me your @

<!-- gh-comment-id:225497070 --> @ghost commented on GitHub (Jun 13, 2016): Sure, give me your @
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@aluxnimm commented on GitHub (Jun 13, 2016):

aluxnimm at gmail.com

<!-- gh-comment-id:225513558 --> @aluxnimm commented on GitHub (Jun 13, 2016): aluxnimm at gmail.com
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@aluxnimm commented on GitHub (Sep 6, 2016):

no feedback.

<!-- gh-comment-id:244998459 --> @aluxnimm commented on GitHub (Sep 6, 2016): no feedback.
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