Equipment (Modems,Gateways)
Modems, Gateways, and Networking Devices
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Moving Public IP Servers behind a Unifi USG with a Comcast DPC3941B Modem

Can you help me with this request?  I recently purchased a Unifi Gateway Security Device (USG) to add to my network so I can track traffic coming in and out of my modem.  I have it setup with a Unifi Switch and Cloud Key.


My connectivity out with my devices work great with the new setup, however I cannot move my three public IP servers from the modem (Model DPC3941B) to connect to the switch behind the USG. I have read a lot of things about bridge mode and pass through but scares me on the actual configuration I need to put on my USG and modem to make this work.  Main reason for moving it behind the USG is to monitor traffic and bandwidth to make sure there are no hack attempts and issues with my servers and line.   Is there a document for this model modem to move the servers? 

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Official Employee

Re: Moving Public IP Servers behind a Unifi USG with a Comcast DPC3941B Modem

Hi there, thanks so much for taking the time to reach out to the Digital Care Team here through the forums. I am so sorry to see that you are having issues with moving your public IP servers. You have reached the right team to help get this figured out for you. Can you please send us a private message with your name, the full address, and phone/account number? 

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