I started to build my app with PushWoosh (I use Remote API). Everything works great on my develop machine (Win7) but when I upload project to production server (Win 2003) I get error.

System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.

Same thing with sample project: works perfect on develop machine and fail on production server.

I use NET/C# version

Any suggestion?


asked 12 Nov '14, 09:44
Evgeny%20Ko's gravatar image

Evgeny Ko

Make sure your server can work with TLS connection. SSLv3 is disabled on Pushwoosh (and on most of the reliable Internet servers) because of the POODLE vulnerability. Trying to establish SSLv3 connection with Pushwoosh will fail.

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answered 24 Nov '14, 09:38
shader's gravatar image


edited 24 Nov '14, 09:38

Can you please point me how I can check it?

(01 Dec '14, 14:21) Evgeny Ko Evgeny%20Ko's gravatar image

I assume you are using IIS.

Take a look on these links: http://serverfault.com/questions/637207/on-iis-how-do-i-patch-the-ssl-3-0-poodle-vulnerability-cve-2014-3566

Also make sue you have all updates on your server as a list of ROOT CA could change from time to time.

(02 Dec '14, 06:09) shader shader's gravatar image

Can you please point me how I can check it?

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answered 01 Dec '14, 14:21
Evgeny%20Ko's gravatar image

Evgeny Ko

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question asked: 12 Nov '14, 09:44

question was seen: 1,665 times

last updated: 02 Dec '14, 06:09