Hi everybody, I'm hoping that you can help me with problem that my company is facing. We have ISA server standard 2004 SP3 installed on Windows Server 2003 Enterprise SP2. That server is virtual and is running on Microsoft virtual server 2004. ISA server has 3 NIC, one external, one internal and one for DMZ. Now, ISA server worked fine for over a year, no problems at all. But, since month ago, problems started to happen. Every day, traffic on external NIC (sent traffic) stops and nothing helps but we need to restart server. This happens every day, few times per day and it's driving me crazy !! The strange part is that we didn't do anything with ISA server, no updates or anything. The configuration is set a year ago and has not changed. This problem started to happen by itself. Also, I cannot find anything strange in the logs on server. Please help me resolve this issue because it's impossible to work and my boss will strangle me.