Zero solar production recorded and PW3 discharging

I got a new system installed a couple of days ago:

• 2 x PowerWall 3
• 1 Gateway

It’s hooked up to an existing Solar system (w/ Enphase Micro-inverters).

We did the pairing when the installers were here and I can see the PW3 install in my Tesla app (under My Home). They are connected via Ethernet and I can see them on my LAN (they got an IP address each).

But I’ve had a problem since the very beginning: the power coming from my solar array always shows 0 in the app. The installers left when it was late in the evening, so 0 was plausible, but it hasn’t moved even when my enphase app reports high production.

That also means that my batteries are never charging (they are not set to charge from the grid - possibly a required config to stay on NEM2).

So my batteries have been discharging slowly since they installed them, from 13% to 10% today.

I tried to call Tesla support but the expected wait time was over an hour, so I gave up.

I will contact my installer on Monday (they don’t seem to be available on weekends), but in the meantime, is there something I can check on my end? Perhaps the CTs to measure solar production are not hooked up or configured correctly?

Also, how do I find out the API password for my PW3. I didn’t take a picture of the sticker in the leader PW3 when it was installed, so now it’s all walled up. I think I can ask support for it, but again, 1h+ wait. I was trying to find it in the app, but no luck.

Thank you in advance for any hints/advice!