Hey everyone, I'm also unable to connect with the latest build (51.1); I believe my exchange server is 2003, but I'm not the admin and it's a fairly big organization. This is what I got from the log: Jan 23 14:25:09 glamb-n900 activesync[1804]: ASDAEMON: ICListener proxyHost: usessl = 1, proxy_host = (null) Jan 23 14:25:09 glamb-n900 activesync[1804]: HTTP REQUEST: POST https://__omitted__/Microsoft-Server...ype=SmartPhone Jan 23 14:25:09 glamb-n900 activesync[1804]: ASDAEMON-CONN: startSession start, aWait=30 seconds Jan 23 14:25:09 glamb-n900 activesync[1804]: ASDAEMON-CONN: CURL-CONN-CALLBACK: Action=2 Jan 23 14:25:09 glamb-n900 activesync[1804]: ASDAEMON-CONN: CURL-CONN-CALLBACK: Action=1 Jan 23 14:25:09 glamb-n900 activesync[1804]: ASDAEMON-PING: Ping is disabled.. Ignore Ping action Jan 23 14:25:10 glamb-n900 activesync[1804]: ASDAEMON-CONN: CURL-CONN-CALLBACK: Action=4 Jan 23 14:25:10 glamb-n900 activesync[1804]: ASDAEMON-CONN: startSession end, ret=0 Jan 23 14:25:10 glamb-n900 activesync[1804]: AS-PERF: Transfered 262 bytes in 1 seconds. Transfer rate is 0 Kb/sec Jan 23 14:25:10 glamb-n900 activesync[1804]: CurlConnectionManager: sendReceive attempt 1: CancelErr=0 Jan 23 14:25:10 glamb-n900 activesync[1804]: HTTP REQUEST headers: Jan 23 14:25:10 glamb-n900 activesync[1804]: User-Agent: N900/1.1 Jan 23 14:25:10 glamb-n900 activesync[1804]: Host: mas01.webmd.net Jan 23 14:25:10 glamb-n900 activesync[1804]: Connection: Keep-Alive Jan 23 14:25:10 glamb-n900 activesync[1804]: Authorization: <skipped> Jan 23 14:25:10 glamb-n900 activesync[1804]: MS-ASProtocolVersion: 2.5 Jan 23 14:25:10 glamb-n900 activesync[1804]: Content-Type: application/vnd.ms-sync.wbxml Jan 23 14:25:10 glamb-n900 activesync[1804]: Content-Length: 13 Jan 23 14:25:10 glamb-n900 activesync[1804]: HTTP STATUS: 403 I presume it's another device security check.