Yes it is dhcp, yes it is getting the address from dhcp.
I can even ping , nslookup and tracert from the diagnostics page.
Uptime: 0h 4m 28s
MAC-Address: 20:59:A0:CA:3B:B0
RX: 200.01 KB (1438 Pkts.)
TX: 239.70 KB (691 Pkts.)
IPv4: 192.168.1.99/24
other things to try?
On the Miner configuration page, maybe try adding in your 3 pools again?