Hello,

I have switched my 5G modem to an outdoor unit, the Zyxel NR7302, running in passthrough mode (so it receives two external IPs and passes one of them to the router).

However, the ER605 is unable to refresh the WAN IP after the network provider provides new IPs, this happens periodically between once a day or once a week.

The online detection of the ER605 is enabled, it even shows offline (but keeps the old WAN IPs in the interface), but is obviously unable to refresh the WAN IPs automatically.

This results in my entire network being offline until I manually fix this.

I tried to confirm if this is a router or modem issue by placing a fritzbox 4050 between the zyxel modem and the omada router, having the omada router as DMZ in the fritzbox NAT.

The fritzbox also detects the network changes after the periodic modem reset, but is able to refresh the external IP withouth any manual interacation.

So it really seems to be an issue on the side of the Omada Router ER605.

Any suggestions? are there any settings i need to change? or downgrade the firmware?
I would really like to stick with my omada router, but without a double-nat due to the additional use of the fritzbox.

Thanks for any advice,

Ruediger