I know its strange, but i've seen a post here on this. https://www.ddo.com/forums/showthrea...ying?p=5156790
I don't think its a modem or wifi router problem because other devices connected to the router like TV, smart phones, work fine.
The internet on this PC also works fine until I run DDO. The only way to fix the internet is to restart the PC.
Internet works fine again, until I run DDO again.