Thanks for your advice: Do you get different messages with SSL disabled? Yes - "Error connecting to the server: server closed the connection unexpectedly. This probably means the server terminated abnormally before or while processing the request." Can you connect with psql locally? No Can you connect with psql via localhost? No The program installed was a web excelerator. I think the Windows Firewall exceptions were turned off for PG and the program calling it. They are now on. Will try the ethereal option. All recommended Windows updates are installed. Darren Meerwald FlagDisplays.com -----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Richard Huxton Sent: Friday, 22 July 2005 15:31 To: Richard Sydney-Smith Cc: pgsql-general@xxxxxxxxxxxxxx Subject: Re: Connection error Richard Sydney-Smith wrote: > An associate is using Postgresql 8 on a windows xp system. The > installation has been operating for several months and he has recently > tried installing some software and postgresql has begun refusing > connection " could not receive server response to SSL negotiation packet". > > Unfortunately he is unable to tell me what was done! We have tried > turning off the firewall, opening connections to "trust" but so far have > not been able to connect. Do you get different messages with SSL disabled? Can you connect with psql locally? Can you connect with psql via localhost? Quickest solution is probably to run ethereal on each end (I think there's a Windows version) and see what messages are going back and fore. I'd still suspect a firewall or client library problem. -- Richard Huxton Archonet Ltd -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.9.2/55 - Release Date: 21/07/05 ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend