Can’t establish a connection (or many variations(

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Can’t establish a connection (or many variations(

There are many sites that I cannot get to because of messages like: "Firefox can’t establish a connection to the server at adserver.adtechus.com". There many messages similar to this one and it appears mostly on drilldown links. I see this on both on Firefox and Safari. There are many sites that get similar error messagess and most times they have "ad" in the server name, but they differ.. I have used Malwarebytes, F-Secure Security Suite and Combo Cleaner but no luck. How do I get rid of of what I believe is some sort of malware? I have macOS Mojave 10.14.5.

iMac 21.5", macOS 10.14

Posted on May 20, 2019 10:16 AM

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Answer 1

Eric Root

Level 10

685,317 points

May 20, 2019 11:59 AM in response to farrellfromjefferson

Try setting up another admin user account to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.

Isolating an issue by using another user account

Safe Mode - About

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply Pastebin

Etrecheck – System Information

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Can’t establish a connection (or many variations(

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