Thank you for your prompt response. I’ve made a copy of it and stored it on my peer to peer server for future reference. what I did was I went to Settings\Intrusion Prevention, Exclusion tab and entered the IP addresses of my workstations. This made sense to me, but with Windows I’ve learned that sensible is not always the best answer. If this does not work I will do as you have suggested. If it does work, I will post here. Thanks again.