You must choose "Static" on the DVR
For example, you first choose DHCP on the DVR to automatically obtain the proper settings such as DNS, Subnet Mask Default Gateway etc... Write these down. Then choose Static IP on the DVR and manually enter all of the DHCP settings "except the IP Address" The IP address needs to be changed to an IP OUTSIDE of the range of the DHCP such as 103 if the DHCP is Default Gateway - 192.168.2.1 / Beginning 192.168.2.2 with a maximum of 100 this would leave 192.168.2.2 to 192.168.2.102 as the range for DHCP leases. You need to choose a Static IP outside of this range such as 192.168.2.103to ensure the IP does not conflict or change when the DVR reboots or another CPU is issued an identical IP address. You can get this information from the router itself while logged into the main page. It tells you the maximum, just need to know a little math =) To ensure the Static IP you choose is not in use go the the START Button and click Run and Type CMD or Search and Type CMD. On Run it will pop up, on Search you have to right click CMD and choose "Run as Administrator" after Windows finds it. Type PING*space*192.168.2.XXX it should NOT Respond. If it does that IP is in use and you have to choose another. (Do this before you Port Forward). You may need to unplug the DVR from the Router while you do this, then plug it back in.Each Port needs to be forwarded to the Chosen Internal Static I
Remember to forward ALL ports required. Sometimes you can have more than 1. Example (Port 9000 - Media) (Port 7777 - Command) (Port 80 - HTTP) (Port 0100 - Mobile) Refer to your DVR manual under "Network" for specifics. Remember the IP needs to be Static on your DVR.Go to portforward.com for a list of routers and specific step by step directions on forwarding ports on your router.
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