Optus.AC800S is what you need to access to reach the web user interface of NETGEAR AC800S. When you log in at http://optus.ac800s, you can change the Wi-Fi password, the Network Name (SSID), and other advanced and default settings of your router.
How to Log in to Netgear AC800S
Logging in to your Optus router is easy, as you only need to follow a few steps.
Step 1: Connect your Device to Netgear AC800S
Your device should be connected to the router before you log in. You can use an Ethernet cable or a Wi-Fi network. But if you want a more stable, wired network is recommended.

Step 2: Open a Browser
Open a browser on your laptop or PC, open your favorite browser, and type https://Optus.AC800s, then press Enter. You can use any browser on your device, but it will be best to use popular ones such as Chrome, Safari, or Microsoft Edge.

Step 3: Enter your Password and PIN
Once you are taken to the login page, type your password in the fields, then click Sign In. If asked with Pin enter 0000 and then click Submit. Make sure to enter the correct PIN because if you enter it 4 times consecutively, your SIM will be blocked.

Step 4: Access the Admin Settings
After signing in, you will be taken to the admin settings where you can configure any settings you think can protect your WiFi network. Make sure to start with the wireless and advanced settings for an improved and optimal network experience.

How to Change SSID and Wi-Fi Password
If you notice your network signal is getting weak, as if there are many users connected, then you should change your WiFi password right away. To configure the wireless settings, follow these steps:
- On the dashboard, select WiFi > Options.
- Under the Main WiFi tab, in the WiFi Name field, enter your new SSID name.
- In the WiFi Password field, enter your new WiFi password.
- Click Submit.

How to Reset your Optus AC800s
Resetting your router can fix issues, including forgotten passwords, IP conflicts, and connection issues. So, in case you face these issues, this is how you can reset your router:
- Locate the reset button typically on the side of your Optus AC800S router.
- When found, press and hold for 10 to 15 seconds, then release.
- Wait for the device to perform the full reset.
- After the reset, configure your router settings again to enhance the security.
Common Login Issues and Troubleshooting
While the login steps are easy to follow, you may sometimes face login issues. But do not worry, as you can resolve them with the right solutions:
- Forgotten password: You can resolve this issue by resetting the router. All you have to do is press and hold the reset button for at least 10 seconds and wait until the router reboots on its own.
- The site cannot be reached: When you can’t reach the site, you can resolve this by making sure that the connection works properly.
- Too many login attempts: This happens when you enter the wrong details many times. Check the back of the router to see the default login details. But if you have changed the default login details and forgotten them, you need to reset your router.
- IP address issue: If you cannot access the IP address on your browser, you may probably using the wrong IP address. Check the back of your router or search for the default IP addresses online.