We have particular application software license server for our office that is located behind a Squid proxy. It stopped working after upgrading Squid from 3.1.0.17 to 3.1.4. This server periodically goes to the software company's web site to verify the license is valid and upload user counts, etc. It appears to be some sort of SOAP application. The license server runs on a Windows server. From access.log: Running 3.1.0.17 (succeeds) - 1278609155.802 470 172.16.4.43 TCP_MISS/200 725 POST http://selectserver.bentley.com/bss/ws/Misc.asmx - DIRECT/64.90.235.78 text/xml 1278609157.482 1054 172.16.4.43 TCP_MISS/200 117679 POST http://selectserver.bentley.com/bss/ws/GatewayWS.asmx - DIRECT/64.90.235.78 text/xml Running 3.1.4 (fails) - 1278607986.223 1138 172.16.4.43 TCP_MISS/500 838 POST http://selectserver.bentley.com/bss/ws/Misc.asmx - DIRECT/64.90.235.78 application/soap+xml 1278607987.128 895 172.16.4.43 TCP_MISS/200 1178 POST http://selectserver.bentley.com/bss/ws/Misc.asmx - DIRECT/64.90.235.78 text/xml I verified the situation by going back to 3.1.0.17 with the same config, whereupon it started working again. I tried adding cache deny for this domain but it didn't change anything. Any thoughts would be most appreciated. Thanks, Alan Lehman CONFIDENTIALITY NOTICE: This e-mail message including attachments, if any, is intended for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Thank you