autodiscover error code 413 received

%3CLINGO-SUB%20id%3D%22lingo-sub-2806012%22%20slang%3D%22en-US%22%3Eautodiscover%20error%20code%20413%20received%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2806012%22%20slang%3D%22en-US%22%3E%3CP%3EHi%2C%3C%2FP%3E%3CP%3EEnv%3D%20TWO%20Ex%202013%20both%20with%20CAS%2BMB%20roles%20server%204%20and%20server%203%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20recreated%20the%20auto%20discover%20virtual%20directory%20on%20one%20server%20let%20say%20server%204%20getting%20error%20as%20below%20Attempting%20to%20send%20an%20Autodiscover%20POST%20request%20to%20potential%20Autodiscover%20URLs.%20Autodiscover%20settings%20weren't%20obtained%20when%20the%20Autodiscover%20POST%20request%20was%20sent.%20Additional%20Details%20Elapsed%20Time%3A%20257%20ms.%20Test%20Steps%20The%20Microsoft%20Connectivity%20Analyzer%20is%20attempting%20to%20retrieve%20an%20XML%20Autodiscover%20response%20from%20URL%20%3CA%20href%3D%22https%3A%2F%2Fautodiscover.domain.com%3A443%2FAutodiscover%2FAutodiscover.xml%22%20target%3D%22_blank%22%20rel%3D%22nofollow%20noopener%20noreferrer%22%3Ehttps%3A%2F%2Fautodiscover.domain.com%3A443%2FAutodiscover%2FAutodiscover.xml%3C%2FA%3E%20for%20user%20user%40domain.com.%20The%20Microsoft%20Connectivity%20Analyzer%20failed%20to%20obtain%20an%20Autodiscover%20XML%20response.%20Additional%20Details%20A%20Web%20exception%20occurred%20because%20an%20HTTP%20413%20-%20413%20response%20was%20received%20from%20Unknown.%20HTTP%20Response%20Headers%3A%20X-FEServer%3A%20server4%20Connection%3A%20close%20Content-Length%3A%200%20Date%3A%20Sat%2C%2002%20Oct%202021%2017%3A15%3A48%20GMT%20Server%3A%20Microsoft-IIS%2F8.5%20X-Powered-By%3A%20ASP.NET%20Elapsed%20Time%3A%20257%20ms.%20WHY%20THIS%20WEB%20EXCEPTION%3F%20i%20have%20two%20autodiscover%20public%20dns%20entries%20autodisover.domain.com%20%3D%3D%3D%20A%20record%20CNAME%20entry%20is%20autodiscover.domain.com%20%3D%3D%3Dmail.domain.com%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-2806012%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3Ecover%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
Contributor

Hi,

Env= TWO Ex 2013 both with CAS+MB roles server 4 and server 3

 

I recreated the auto discover virtual directory on one server let say server 4 getting error as below

 

Attempting to send an Autodiscover POST request to potential Autodiscover URLs. Autodiscover settings weren't obtained when the Autodiscover POST request was sent. Additional Details Elapsed Time: 257 ms. Test Steps The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://autodiscover.domain.com:443/Autodiscover/Autodiscover.xml for user user@domain.com. The Microsoft Connectivity Analyzer failed to obtain an Autodiscover XML response. Additional Details A Web exception occurred because an HTTP 413 - 413 response was received from Unknown. HTTP Response Headers: X-FEServer: server4 Connection: close Content-Length: 0 Date: XXXXXXXX 17:15:48 GMT Server: Microsoft-IIS/8.5 X-Powered-By: ASP.NET Elapsed Time: 257 ms. WHY THIS WEB EXCEPTION? i have two autodiscover public dns entries autodisover.domain.com === A record CNAME entry is autodiscover.domain.com ===mail.domain.com

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