Comments on: Why does OWA prompt user continually for credentials?

By: xvii172002

xvii172002 — Tue, 07 Dec 2010 05:55:47 +0000

I am having this problem before I fixed it

Check Outlook settings:
Properties  Email Account  Change  more settings exchange proxy settings
1. Check Connect using SSL only
2. Uncheck “Only connect to server that has principal name on their certificate”

If the error still occurs check the registry
Run regedt32.exe and access
HKEY_LOCAL_MACHINESOFTWAREMicrosoftRpcClientProtocols
Name Type Data
(Default) REG_SZ (value not set)
ncacn_http REG_SZ Rpcrt4.dll
ncacn_ip_tcp REG_SZ Rpcrt4.dll
ncacn_np REG_SZ Rpcrt4.dll
ncacn_nb_tcp REG_SZ Rpcrt4.dll
ncadg_ip_udp REG_SZ Rpcrt4.dll

If one the values is missing , right click on the page and add new string value and input the name and type. Then right click on the value added and then modify and and then input the Data

By: mentalsolutions

mentalsolutions — Wed, 05 May 2010 16:09:27 +0000

I have seen something like this before – if im not mistaken it has something to do with the version of office installed on the clients PC – something in OWA causes interaction with older versions of office

By: prashant112151

prashant112151 — Fri, 30 Apr 2010 17:54:56 +0000

please find work arround(may be this temp solution because i am unable to found RCA for same),

1) Get the all backup of mails and make the PST.
2) If your using secure certificate then download certificate and installed again in your trusted certificates.
3) then check his mail box.

By: prashant112151

prashant112151 — Fri, 30 Apr 2010 17:47:07 +0000

Hi ,,

I am faicng simiar problem with same one,

We are facing problem with OWA. whenever user accessing his OWA window then he able to login sucessfully but again and again asking for credetials even anywhere clicking then asking for credentials.

By: russell0311

russell0311 — Wed, 15 Oct 2008 20:15:06 +0000

can you tell me if you fixed this isue? I have an exchange front end load balanced pair of server Exchange 2003 and a backend cluster. i ahve the smae problem. Front end security is basic with an ssl certificate and the backend is integrated and basic.

thanks
Russell