I need some assistance with our network at the office. We recently switched from having our data and voice being managed through a T1 and a phone server on site to having a cable modem and a virtual PBX. Previous set up was T1 Line -> Box from T1 provided -> one line to the phone server and a second line to a SonicWall Firewall which then went to a couple of dell switches. We have switched to a cable modem with 5 static IP's and a virtual PBX. Tech support for the PBX company suggested we configure our net work as follows. --->Router---> Switch that connects to all phones Cable Mode --> Unmanaged switch--| --->SonicWall--> Switch that connects to computers I configured the router for the phones and that works with no problems. But, when I configure the SonicWall with the information provided by our cable modem provider it worked but the SonicWall said it needed to restart after configuration so I clicked restart. Then the the internet connection wouldn't work and I couldn't get back into the SonicWall. After numerous attempts at powering down the SonicWall and switch I finally was able to access it again and then the connection disappeared and finally I got access back again and reset everything to how it was on the T1 line. The WAN setting on the SonicWall are as follows: SonicWALL WAN IP (NAT Public) Address: I set this to an IP address in the range provided and made sure it was different than the one in use by the router for the phones. WAN Subnet Mask: I set this to the subnet our provider sent listed WAN Gateway (Router) Address: I set this to the Gateway address our provider listed DNS Server 1 & 2: Set to what our provider sent over. There is also an option for LAN settings. SonicWALL LAN IP Address: I left this as it was LAN Subnet Mask: I set this to the subnet mask our provider listed. From reading the setup guide for the SonicWall everything seems to be correct but then I am not able to access it nor do we have an internet connection. The phones still work so there is connectivity to the modem. I also tried connecting directly to the SonicWall rather than through a switch with no success. Reseting seems to eventually work but I am not sure if that worked or if it was something else. I am not sure what additional information would be needed so if you need something else please let me know.