http://msmvps.com/blogs/bradley/archive/2008/11/21/what-firewall-ports-do-you-need-open-for-quickbooks.aspxTroubleshooting QuickBooks update errors: http://support.quickbooks.intuit.com/support/pages/knowledgebasearticle/203312 So what ports are needed for Quickbooks in the various years? Quickbooks 2009 -- 80 and 443 outbound 55333-55337 inbound and outboundenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/bradley/archive/2008/11/21/what-firewall-ports-do-you-need-open-for-quickbooks.aspx#1654979Mon, 24 Nov 2008 23:21:49 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1654979bradley<p>FYI Sproket that is not meant to be the outside firewall. &nbsp;Server 2008 ships with the firewall enabled on the server. &nbsp;Do NOT turn it off. &nbsp;This is standard operational procedure for the internal nic.</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1654979" width="1" height="1">http://msmvps.com/blogs/bradley/archive/2008/11/21/what-firewall-ports-do-you-need-open-for-quickbooks.aspx#1654978Mon, 24 Nov 2008 23:15:48 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1654978sproket90<p>you got so many holes in your firewall it looks like swiss cheese... &nbsp;</p> <p>maybe you ought to save yourself some time and trouble and rely on a good perimeter firewall...</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1654978" width="1" height="1">