With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
tokenRingMLHistoryCongestionErrors
token Ring ML History Congestion Errors
1.3.6.1.2.1.16.2.3.1.21
The total number of receive congestion errors reported in error reporting packets detected by the probe during this sampling interval.
Back to TOKEN-RING-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor tokenRingMLHistoryCongestionErrors 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.