We are observing issue of frequent disconnection of DirectAccess Session. When go through DirectAccess reporting console and webmonitor, We find most of DA Session are of 57 mins. Only few sessions are going more than 60 mins. After going through details, we found SA Quick Mode Data protection Key Lifetime is set to 60 mins in Client GPO.http://technet.microsoft.com/en-us/library/cc731752.aspx
Does any one have idea, is this the reason for frequent disconnection of DA IPsec tunnel, Does this rekeying of SA have any impact on realtime applications running or like FileCopy or download happening on DA Clients from Intranet Servers.?
Can we increase this Key Lifetime value what will be impact on sessions?