That's good news.
OK so you have it installed to be a wireless Bridge with an air hop between the Asus Router and the ENH500. That makes sense now. I had a quick check for a Manual on that model and it seems it has been superseded so I didn't go much further. Maybe just double check that you have it correctly configured for 'Bridge' mode according to its documentation. Failing that, log into the NVR and set a different (and static) IP for that as you did with the iPhone. Remember too, especially when checking the ENH500 settings, there can only be one Router (the device that hands out IP addresses by DHCP) in a network. In the case of your Network it should be the ASUS RTAC68U. If there is a setting in the EN500H to Enable/Disable DHCP then make sure it is disabled.
Happy Travels !
OK so you have it installed to be a wireless Bridge with an air hop between the Asus Router and the ENH500. That makes sense now. I had a quick check for a Manual on that model and it seems it has been superseded so I didn't go much further. Maybe just double check that you have it correctly configured for 'Bridge' mode according to its documentation. Failing that, log into the NVR and set a different (and static) IP for that as you did with the iPhone. Remember too, especially when checking the ENH500 settings, there can only be one Router (the device that hands out IP addresses by DHCP) in a network. In the case of your Network it should be the ASUS RTAC68U. If there is a setting in the EN500H to Enable/Disable DHCP then make sure it is disabled.
Happy Travels !