Accessing USB flash drive network storage and printing with 2 different subnet network and routers

[Xarsage]

I wanted to update you on this.
I’ve successfully resolved it by resetting both of my routers and applying the configuration you suggested and configuring them as follows:

1. Router Configuration: I have set up the network with a failover configuration instead of load balancing. The GL-B3000 and GL-AX1800 routers are now configured to switch over in case of a failure. Here’s how I’ve set it up:

• The "repeater" is designated as the primary connection.
• Ethernet is assigned as the secondary.
• Tethering is configured as the tertiary connection.
  
  

2. Static DNS Configuration: I have configured static DNS settings for DHCP clients on both routers (Interfaces > LAN).
   

   

3. Static IP Assignment: The GL-AX1800 has been assigned a static IP via DHCP. This is crucial for maintaining a fixed gateway. I configured both gateways as for primary and seconday.
   

   

4. Static IP Route: I have set up a static IP route on the GL-B3000 for the GL-AX1800 IP gateway.
   

   

5. Firewall Configuration: I have enabled the Zone Firewall specifically for the GL-AX1800 while GL-B3000 is none.
   

   
   
   
   

With this configuration, clients connected to either router can access devices and services across both routers.