Issues accessing TDAmeritrade

Suddenly starting last night any device connected to my network which is using as the DNS server is unable to access or anything having to do with TDAmeritrade[.]com.

It appears that the DNS network is misinterpreting the tdameritrade[.]com domain name as malware. How can this be rectified?

Hi Andrew,

Seems to resolve for me using Can you try the troubleshooting steps here and replace w/