Anybus ABC3000-A fatal error

Hi I am using anybus ABC3000-A profibus-dp device serial master all connection is ok but its led on gateway is red flashing and web interface is also not opening

Is the gateway LED flashing between green and red, or just red?

Does the gateway LED still flash red if you disconnect any Ethernet cables from this device, so it’s just connected to the serial network?

If you connect the Anybus to your computer over Ethernet and open IPconfig, can it detect the device? What IP address does it show? I am wondering if there might be a conflict between the Anybus’s IP address and another IP on the network.