Hello everyone,

I am currently moving house and have a fiber optic connection from Deutsche Telekom in my new apartment. So I'm just starting up.
I bought the Archer GE800 and plugged the SFP Zyxel Modem box into the SFP+, which is also certified by Deutsche Telekom and my ISP.
First I registered the SFP ONU stick online with my ISP, which all worked, and I was confirmed that everything was ready for use.

The router lights up red and shows me “No internet connection”.

1. The router has an SFP+ interface, the ONU stick only SFP, but that shouldn't be a problem. As far as I know, there is only one SFP stick available from Telekom at the moment. It should be enough for 1000MBits/s.

2. the fiber optic connection in my apartment has an LC/AFC connector, the ONU stick has an SC/APC connector.
I bought this adapter (https://www.amazon.de/dp/B0C4N2CLJ3?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1)

3. I have set to dynamic IP, as my ISP does not assign an IP as far as I know.

4. the latest FW is installed

How can I check whether the router recognizes and communicates with the ONU Stick?
Do I need to make any other settings?