With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
agentStatusFileTransfer
agent Status File Transfer
1.3.6.1.4.1.171.12.1.1.5
status of firmware download control. If the value is 'other', means never firmware updated since device started up.
Back to AGENT-MIB MIB page.
IPHost Network monitor allows you to monitor agentStatusFileTransfer 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.