@dis69 Check this solution.

@Drdiamond That's exactly the problem with this router model. Its FW is not officially supported by TP-Link. Its FW is customized for a particular ISPs.

@C8JRA AX55 supports Easymesh. If your RE305 is HW v4 it should support Easymesh and connect with AX55 seamlessly. Here's a list of Easymesh supported range extenders. Range extenders (RE) usually...

@Drdiamond So, bottom line whatever DNS you use (ISP's or Google's) the router has internet access itself but not your client devices. That's a weird issue and I don't think I could help with...

@Drdiamond That's clearly a DNS issue with your router for some reason. Form you router System Tools=>Diagnostics if you ping google.com is there any replies ? Did you try using the ISP DNS servers...

@Drdiamond Your settings are fine but it's not clear why your client devices don't have an internet access. Connect a computer to the router and execute the following commands in command prompt then...