https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55447#M6499 Why is the controller not on V10.41 ?<BR /> V9 doesn't get that many fixes. Thu, 19 Jul 2018 22:37:00 GMT Ronald_Dvorak 2018-07-19T22:37:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55446#M6498 Hi everyone, <BR /> <BR /> We are working with a C35 and a V2110 wireless controllers runing the firmware version 9.21.20.0001. Since the release of IOS 11.4.1 (july, 16, 2018) our APs (3705i) are, randomly, dropping most of the IOS devices.<BR /> <BR /> Thu, 19 Jul 2018 22:31:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55446#M6498 Luis_Alfonso_Gr 2018-07-19T22:31:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55447#M6499 Why is the controller not on V10.41 ?<BR /> V9 doesn't get that many fixes. Thu, 19 Jul 2018 22:37:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55447#M6499 Ronald_Dvorak 2018-07-19T22:37:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55448#M6500 My actual infraestructure does not let me to upgrade due to my 4202 and my 36xx APs but thanks for you reply, Ronald Thu, 19 Jul 2018 22:37:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55448#M6500 Luis_Alfonso_Gr 2018-07-19T22:37:00Z https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55449#M6501 It looks like many IOS 11.4.1 users are experiencing WiFi issues after upgrading to that version. Some users (see links and threads below) are indicating that they have been able to back rev to resolve this issue ("Hello, just to verify that I to updated to 11.4.1 and was faced with exactly the same WiFi problem. After trying advisory fixes which didn’t work (e.g. clearing network settings) I tried a re-install of the update via iTunes but to no avail. Finally I have now downgraded back to iOS 11.4. On iTunes Which has now fixed the problem.").<BR /> <BR /> <A href="http://piunikaweb.com/2018/07/21/did-ios-11-4-1-update-mess-up-your-apple-devices-wifi-connectivity/" target="_blank" rel="nofollow noreferrer noopener">http://piunikaweb.com/2018/07/21/did-ios-11-4-1-update-mess-up-your-apple-devices-wifi-connectivity/</A><BR /> <BR /> <A href="https://allthings.how/ios-11-4-1-wifi-problem-fix/" target="_blank" rel="nofollow noreferrer noopener">https://allthings.how/ios-11-4-1-wifi-problem-fix/</A><BR /> <BR /> <A href="https://discussions.apple.com/thread/8461870" target="_blank" rel="nofollow noreferrer noopener">https://discussions.apple.com/thread/8461870</A><BR /> <BR /> <A href="https://discussions.apple.com/thread/8470800" target="_blank" rel="nofollow noreferrer noopener">https://discussions.apple.com/thread/8470800</A><BR /> <BR /> <A href="https://www.gottabemobile.com/ios-11-problems-5-things-you-need-to-know/" target="_blank" rel="nofollow noreferrer noopener">https://www.gottabemobile.com/ios-11-problems-5-things-you-need-to-know/</A><BR /> <BR /> Hope this helps.<BR /> <BR /> Mon, 23 Jul 2018 20:08:00 GMT https://community.extremenetworks.com/t5/extremewireless-identifi/apple-devices-lose-internet-connection-w-ios-11-4-1-enterasys/m-p/55449#M6501 Hawkins__Bruce 2018-07-23T20:08:00Z