Just tried flush dns. Still get dced. I'm using a wired connection.
I'm on 1Gbps fibre connection and my latency is ~150ms.
I've tried reinstall both DB and D3.
Here is another log. Hope it helps.
Oddly enough the connection is excellent. The problem could be in the settings. Try to change them, you can find all the instructions here 192.168.1.1 . There's a lot of useful information there. If it doesn't help, you can try to reflash the router. Hope I was helpful. Take care.