@StuartF  Yes I agree, I have Tapo cameras on other ISPs and they are working fine. 

I checked the Optus router logs, and they initiated a firmware update at 7am yesterday morning - which is exactly when my camera stopped working.  This strongly points the finger at the firmware update blocking the outbound connection. But I haven't had any luck getting someone at Optus to understand this.

Also just tested and have the same issue with my dishwasher - can access on wifi, but not remote. Definitely an incoming connection modem issue - so some work to do there

The past two nights, the cameras have been able to upload to the cloud from 3am to 8am. 

It's like Optus unblocks access for a couple of hours per night. Has anyone else had this with their devices?

The four devices of mine have always had orange lights and haven't changed. I'm planning to switch to cameras of another brand. It's so annoying that when there's a problem with all of them being of the same brand, they all become unusable.

Plew wrote

The past two nights, the cameras have been able to upload to the cloud from 3am to 8am. 

 

It's like Optus unblocks access for a couple of hours per night. Has anyone else had this with their devices?

  @Plew Yes, a few days ago I started having issues accessing tapo devices - cameras, smart switches weren't working fully, I've had "local only" messages on devices attached to my H500 hub, messages in the smart actions saying my hub is offline when it's clearly online locally but not contacting the cloud - it's been driving me crazy.

As you have, I also noticed that for the past 2 nights, everything came back to life at 3am (Brisbane, Optus NBN) only to all be problematic again when I woke up.

Even just now, to recover my password for this forum, I got timeouts and errors trying to do so - accounts3.tplinkcloud.com/reset/v1?lang=en_us&email=xxx&region_code=AU was unreachable with ERR_CONNECTION_TIMED_OUT

In order to reset my password (xxx replaced my info) I had to follow the link emailed to my on my phone with WiFi disabled to avoid Optus NBN. I have also found that my H500 will go online (status light goes solid) when connecting via a hotspot on my phone.

I am also unable to remotely access my router from my phone when not on WiFi, something that usually works perfectly. It's also a tplink product. It certainly seems that in some way, Optus or the NBN have managed to block something to do with tplink or whomever hosts their cloud.

If you have any success finding someone at Optus to explain all this to, please do update this thread!

  @StuartF Hi I have the same issue with multiple Tapo cameras and Optus modem has anyone had a solution update.

  @StuartF Hi this is what Optus sent me 

Thank you for doing that and I do appreciated it. As per checking here on my end I can see that the recent firmware update on the Ultra WiFi Gen 2 has changed how the modem handles:
- 2.4 GHz Wi‑Fi broadcasting
- Device isolation
- Firewall rules
- UPnP and multicast traffic
- Smart device pairing protocols

Tapo cameras rely heavily on:
- 2.4 GHz Wi‑Fi
- Local network discovery
- Cloud communication through specific ports

When the modem update alters these settings, the cameras fail to pair or go offline.

To also help you get you CCTV device work again here what you will be needing to do on your end:

On Ultra WiFi Gen 2:
- Ensure 2.4 GHz is ON
- Ensure SSID is visible
- Ensure band steering is not forcing devices to 5 GHz

And to help you checked on here's how:

Step 1: Login to WebGUI 

--Login to the modem's WebGUI, by entering http://192.168.0.1 into a web browser on a device connected to the modem
--Enter the Password located on the sticker on the base of the modem and select Login

Step 2: Navigate to My Wi-Fi

--Select My Wi-Fi at the top of the page to navigate to the modem's WiFi settings.

Step 3: Change Band Steering setting

--The Enable Band Steering setting will show the modem's current Band Steering Setting (ON or OFF)
Toggle the setting:

OFF: To disable Band Steering. This will create a secondary "_5Ghz" WiFi name (SSID) where connected devices will only use 5GHz. Other devices can connect to the standard WiFi name (SSID) and will receive a 2.4GHz connection

ON: To enable Band Steering. This will enable a single WiFi name (SSID) for all devices to use. Devices will maintain an optimal connection by roaming between 2.4Ghz and 5Ghz, depending on their distance from the modem and device preferences

Step 4: Confirm change

--The page will now display your current WiFi settings.
--From this page, you can also modify basic WiFi settings, such as the WiFi names and passwords

  @StuartF 

All my tp link stuff went offline Xmas day. Exactly the same happens devices alive from 3am to 8am then offline. Cameras, doorbell, hub and sensors all no good on Optus NBN (amaysim) working fine on local wifi but with notifications not working properly. Hotspot the phone and they are as good as gold. Amaysim support useless.