I bought a new range extender RE450 to replace my previous one RE200 as I couldn't get wifi in the kitchen. The RE450 didn't give me a decent wifi signal in the kitchen so I tried connecting the two extenders with an ethernet cable and placing the RE200 nearer the kitchen. There is now a wifi signal in the kitchen from the RE200 but on all devices it says connected but no internet.  Any suggestions how I can get internet access via the RE200?  Or maybe it is impossible to connect two wifi extenders in this way?

Thanks for your help.