Hi - I have a Squid3 reverse proxy set up for SSL offloading. It has been working fine until 48 hours ago for ActiveSync users. If I bypass the proxy (NAT around it) they can connect fine. Below is a <EDITED> snippet from the cache.log in debug mode: 2010/02/26 10:06:57.184| httpRequestFree: https://host.domain.com/Microsoft-Server-ActiveSync?User=<USERNAME>&DeviceId=<DEVICEID>&DeviceType=SmartPhone&Cmd=Sync 2010/02/26 10:06:57.184| ACLChecklist::~ACLChecklist: destroyed 0x97951b0 2010/02/26 10:06:57.184| StoreEntry::unlock: key '<KEY>' count=2 2010/02/26 10:06:57.184| fd_close FD 124 https://host.domain.com/Microsoft-Server-ActiveSync?User=t 2010/02/26 10:06:57.184| ConnStateData::~ConnStateData: FD -1 2010/02/26 10:06:57.184| event.cc(225) checkEvents 2010/02/26 10:06:57.193| EventDispatcher::dispatch: Running 'mem_obj->abort.callback' 2010/02/26 10:06:57.193| comm_close: FD 114 2010/02/26 10:06:57.193| commSetTimeout: FD 114 timeout -1 2010/02/26 10:06:57.193| commio_complete_callback: called for 114 (-10, 0) 2010/02/26 10:06:57.193| commio_call_callback: called for 114 2010/02/26 10:06:57.193| httpReadReply: FD 114: len 0. 2010/02/26 10:06:57.193| http socket closing 2010/02/26 10:06:57.193| commCallCloseHandlers: FD 114 2010/02/26 10:06:57.193| commCallCloseHandlers: ch->handler=1 data=0x97b6470 2010/02/26 10:06:57.193| httpStateFree: FD 114, httpState=0x97b6470 2010/02/26 10:06:57.193| http.cc(144) HttpStateData 0x97b6470 destroyed; FD 114 2010/02/26 10:06:57.193| StoreEntry::unlock: key '<KEY>' count=1 2010/02/26 10:06:57.193| Server.cc(427) cleaning ICAP; ACL: 0 2010/02/26 10:06:57.193| commCallCloseHandlers: ch->handler=1 data=0x97a5e88 2010/02/26 10:06:57.193| fwdServerClosed: FD 114 https://host.domain.com/Microsoft-Server-ActiveSync?User=<USERNAME>&DeviceId=<DEVICEID>&DeviceType=SmartPhone&Cmd=Sync 2010/02/26 10:06:57.193| commCallCloseHandlers: ch->handler=1 data=0x94c9748 2010/02/26 10:06:57.193| fd_close FD 114 https://host.domain.com/Microsoft-Server-ActiveSync?User=t 2010/02/26 10:06:57.193| forward.cc(166) FwdState destructor starting 2010/02/26 10:06:57.193| storePendingNClients: returning 0 2010/02/26 10:06:57.193| StoreEntry::unlock: key '<KEY>' count=0 2010/02/26 10:06:57.193| storePendingNClients: returning 0 2010/02/26 10:06:57.193| storeRelease: Releasing: '<KEY>' 2010/02/26 10:06:57.193| store.cc(388) destroyStoreEntry: destroying 0xb5fe6dd4 2010/02/26 10:06:57.193| store.cc(378) destroyMemObject 0x972c2b4 2010/02/26 10:06:57.193| MemObject.cc(97) del MemObject 0x972c2b4 2010/02/26 10:06:57.194| forward.cc(193) FwdState destructor done 2010/02/26 10:06:57.261| event.cc(225) checkEvents 2010/02/26 10:06:57.273| EventDispatcher::dispatch: Running 'MaintainSwapSpace' 2010/02/26 10:06:57.273| storeMaintainSwapSpace: f=1.00, max_scan=500, max_remove=80 2010/02/26 10:06:57.273| UFSSwapDir::maintain: /var/spool/squid3 removed 0/80 f=1.0000 max_scan=500 2010/02/26 10:06:57.286| event.cc(225) checkEvents 2010/02/26 10:06:57.297| EventDispatcher::dispatch: Running 'commCheckHalfClosed' It appears to connect and then hangs. Thanks in advance, R Sargent