Lease time connected to range extender devices keep on disconnecting and refreshing the lease time. I tried everything,range extender dhcp switched off, kept range extender ip automatic as well as kep

I have two option to buy BE400 Wifi 7 router (entry level) and AX73 Wifi 6 router (mid ranger). Which would be wise to get as my main requirement is range? Are they both same in range? I have noticed

Main isp router showing and stucked at static allocating.. But extender allocated successfully. Is this normal? Any thing to worry?

Doubts: Background: I have a normal modem router from ISP and TP link RE505X extender which i baught today and I am planing for upgrade to AX73 as access point from ISP modem. It would look like AX73

Only easy mesh showing in extender page..why? This extender suppose to support onemesh right?

Why rx value showing 0 Mbps?