Sounds like an RPC failure between NT and Win2k with Q311401. This generally happens when you have mismatched encryption levels and NT 4 and Win2k are unable to negotiate 56 bit encryption. See if the issue is resolved by uninstalling Q311401 or contact Microsoft and request hotfix Q322051. Alternately, installing the 128 bit version of SP6a might also resolve this.
-----Original Message----- From: Richard Dann [mailto:[EMAIL PROTECTED]] Posted At: Wednesday, May 08, 2002 1:53 PM Posted To: Exchange Discussion List Conversation: 5.5 SP4 in NT4 - problems after security updates Subject: 5.5 SP4 in NT4 - problems after security updates Its a long time since I last posted but I'm wondering whether anyone has any inspiration on the following problem: Exchange 5.5 SP4 server running on NT4 SP6a OWA running on another machine under W2K SP2+SRP1 and all relevant hotfixes. OWA works fine until NT4 SRP, IE5.5SP2 (on top of IE5.5 gold) plus Windows Update security patches installed. Now OWA only works for public access on the W2K box. Mailbox access doesn't authenticate. On NT4 server same effect for mailbox and fails to correctly log onto public access. Normal client access (Outlook any version) OK. Tried reinstalling Exchange SP4, no effect. Any suggestions welcome. TIA regards, Richard Dann regards, Richard Dann Nextra, a division of international telecoms organisation Telenor, is a leading European Communications Service Provider. For information on products and services click on www.nextra.co.uk. With the exclusion of purchase orders/requests with reference to repair quotations the views, information and opinion contained in this e-mail are that of the author. Where it is intended to place reliance upon any statement made, then a formal confirmation should be requested. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]

