@umutsati Do you have a diagram of your network? Last time, we discussed this, did you have anything change in your diagram? Any new cable connections?

@Syed-Masood Please provide a picture of the screen when this error occurs.

@guyd2 guyd2 wrote @Clive_A Typo at my last post - I'm NOT a professional. Can you share exactly what info is needed and where to take it from ? I can Upgrade again, and monitor the behavior. Please...

@Sniperassault20 There is a new firmware for this model. You can consider upgrading the firmware first: https://www.tp-link.com/en/support/download/vigi-c340/v2/#Firmware

@ANDXBFX Make sure the upstream device can provide a proper IP address and Internet to the regular Ethernet devices. Double-check the cable and try different one.

@ProtoTempus ProtoTempus wrote @Clive_A Thanks for the assistance. Before I switch the modem into bridge mode, it was getting both an ipv4 and ipv6 address. When set to "Non-Address" I do not get an...