Recently I set-up a new SBS2011 server. Everything went well, emails were flowing on exchange and mapped network drivers were working. iPhones and iPads were syncing with exchange on WiFi and 3G.
However after a power outage I started to have some major issues I could not ping the primary IP any more and some external IP addresses could not connect to the server any more, however others could. My iPads and iPhones won't connect to exchange on the internal WiFi any more, sometimes they can on the 3G but other times nothing.
I am blaming my ISP for the external blocks. I have replaced the router with one I am familiar with, still getting random public IP addresses that are blocked. By blocked I mean I can't load the OWA or connect to exchange on the mobile devices.
I thought it might be my internet security software so I removed that restarted the server still same issue.
On the server it's self I can't ping the router. On the network I can no worries.
On some computers in the network I can't ping the 10.0.0.101 NIC but I can ping the 10.0.0.102 NIC
I don't know what is causing these dramas. I have turned off the Windows Firewall
without any change.
The server is running DHCP and DNS.
Any ideas would be great.