leewhat

Does it say any error when trying to access? web browser?

Tried to delete the wifi on iPhone and reconnect again?

It's useful for local transfer between computer like NAS. You do need to upgrade other equipment to 10G as well.

Did you setup router 2 as Access Point mode and plug the cable from router 1 to LAN port, not WAN port router 2?

Do your phone/laptop support Wifi 6? For higher max speed, you will need to use higher bandwidth like 80Mhz or 160MHz, assuming your device support and not much interference.

Can you check if this turned on? https://support.norton.com/sp/en/us/home/current/solutions/v138204009

Disable the DHCP on cAP AX?

Gateway 192.168.0.1?

Why is dns 192.168.1.1?

Try readjust the other Deco location, you can't put too far if its wireless backhaul.

if you have multimeter, could check the power adapter.

can follow this https://docs.gl-inet.com/router/en/4/faq/connect_to_a_hotspot_with_captive_portal/

What you are looking for is WISP mode, not Access Point mode.

they already shrink the omada compared to early model like eap613