Hi, Yesterday I upgraded to 5G wireless internet, and I'm unable to connect my old iPad running iOS 10.3.3 to the wifi network.  The modem is the TPG supplied Sagemcom Fast 5866T.  My windows PC, windows laptop, Andriod phones and iPad 10 all connect to the wifi. I can see the wifi network on the old ipad, but when I enter the password I get the message "Unable to join the network". I have called TPG tech support and worked through the following, none of which fixed the issue. - Given the 2.4GHz and 5GHz network seperate names and passwords.  I can then see the 2.4GHz wifi only on the ipad, but it still gives the same message when the password is entered when attempting to connect. - Reset the ipad Network settings - Restarted the ipad - Under the modem wifi configuration settings -> advanced configuration, changed the 2.4GHz band wireless mode from Wi-Fi 6 - 802.11b/g/n/ax to Wi-Fi 5 - 802.11b/g/n   In the end TPG support said to call Apple as it's not an issue with the modem. I have seen the same issue before, but the thread ended with private PMs. https://community.tpg.com.au/t5/Broadband-Internet/Message-Unable-to-join-the-network/td-p/113896   Thanks in advance, Oli ... View more