Hey @Mystiky,

First the easy one, that icon is just a signifier that your device is connected to the guest network.

For your device, I would try a few things to troubleshoot:

• What is the Operating System version of your iPhone?
• Are there any recent changes to your network or updates to your iPhone?
• Are you using the 6GHz or MLO features of your router?

First, In your phone's network settings for the main network, disable the Private Addressing/Randomized MAC feature, as this is a feature meant to interfere with a network tracking a device and is easily toggled on and off for testing.

Next, check the security setting that you have set for your main network; traditionally, your guest network will use a lesser encryption method.

You should try setting your encryption method to use: WPA2-PSK[AES],  under Advanced->Wireless->Wireless settings 

Also, make sure you actually reboot your phone when making these changes as there can be settings in your cache that need to be cleared.

As a temporary workaround for things like casting and seeing local devices - there is a setting in your guest network to allow your devices on the guest network to see devices on your main network.

Hey @Mystiky,

Hmmm. Everything seems to point towards the encryption method used, or at least the handshake that occurred between your phone and the router with that encryption method. Are you able to try another encryption method on your network to see if the device is then able to connect?

There is also an option in your phone settings to completely reset your phone's network settings. If the cause was a bad handshake this would have the potential of clearing any saved certificate or setting.

Your phone is also capable of having a 6GHz connection, so you should consider trying to use that network and band.

My team has also mentioned that iOS devices previously had difficulties communicating using the lower channels on a band. You could try manually selecting a higher channel for one of your bands to see if anything changes.