You say your laptop and DVR are on the 192.168.1.* network, but are they using identical netmasks?
C:\Users\Joe> route print
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.208 276
192.168.1.0 255.255.255.0 On-link 192.168.1.208 276