After 3 days of banging my head against my screen and multiple calls to Support with no resolution. I figured out what was causing my problem. Unsecure FTP.
I have 27 websites running off a single IP, when I FTP into each, I usually do so over SFTP. One of my FTP accounts was connecting over standard FTP. I tested this theory and I was able to recreate the block.
First thing you need to do, log into your Xfinity account online, go to Internet > Network > Advanced Security. From here, click on your device, if you see "Unauthorized Access Attempt" chances are you are facing the same problem I did. Don't click "Help Me Fix It" because it won't. Instead click "More About This Threat" and then Click on "Threat History" you should see your sites IP address there with a message like; "Are you or someone you know trying to access this device" and a random port number. Click allow access, and see if you can now access your site.
Try connecting to FTP unsecure again and it will trigger another block. I did this several times to confirm that FTP was the culprit. I re-setup my FTP connnection to use SFTP and tried this experiment again and all is well. No more blocking.
One thing that helped me in this process was https://downforeveryoneorjustme.com/ - Everysite I tested was just down for me.
Hopefully this helps someone.
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I'm having the same issue, what is the deal? I cannot access any of our corporate websites all of a sudden. This is a major issue that needs a quick resolution.
Turning off advanced security is NOT a solution. How am I supposed to advise potential customers using xFi? Our websites utilize a shared IP and run on a secure server that has a real-time Malware scanner/blocker. This is not a shared hosting setup, this is a Managed VPS setup.
We need a solution ASAP.
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