With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
dvmrpNeighborUpTime
dvmrp Neighbor Up Time
1.3.6.1.3.62.1.1.4.1.3
The time since this DVMRP neighbor (last) became a neighbor of the local router.
Back to DVMRP-MIB MIB page.
IPHost Network monitor allows you to monitor dvmrpNeighborUpTime on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link WiFi routers right now.