iPad , iPhone with iOS 11 cannot associate to AP.
when i use my ipad and iphone connect to new SSID with authentication OPEN, my devices are disassociate but i use iphone with iOS 10 can connect to SSID normally.
anyone here got this problem with iOS 11 ?
Solved! Go to Solution.
This is my post and my issue is caused by Apple iOS devices. I will summary my issue.
In First post mention this issue
when i use my ipad and iphone connect to new SSID with authen. OPEN,
my devices are disassociated but i use iphone with iOS 10 can connect to SSID normally.
From my test when i use iOS get dhcp it was disconnected but if i static ip,
it can connect.
if I use dhcp server from Switch or Router,
it will connect but use dhcp server from windows server,
it got IP and will be disconnected within 2-3 seconds. what happens about iOS 11 with DHCP server using window server ??
I found when iOS11 connect to WiFI, it tried to sent URL: http://captive.apple.com to the internet. If we have to use Proxy Authen. or Web Authen. for authentication before using the Internet then the connection will be dropped.
My Workaround and Test to fix this issue.
1. Bypass captive.apple.com on Proxy or Web authen. to the internet. (It works)
2. Create captive.apple.com on internal DNS server, When the client resolves captive.apple.com will get the ip of the internal DNS server to prevent the traffic of captive.apple.com sending out proxy or web authen to the internet. (It works)
3. Static FAKE DNS IP address on iOS Devices to get connection first, (for prevent iOS try to resolve, if iOS can resolve, WiFi will be disconnected) when iOS devices can connect to WiFi then adjust it to auto. but it must be done every time the wifi connection. This method is suitable for use over public wifi. (It works)
This is my issue that i got and now this issue has been fixed by upgrade iOS by apple.
Other people in this post may got different problems, different workaround and different solution.
With these iOS devices its a know issue that they might fail to connect if you use the wrong type of encryption. If your using WPA, then you only need to configure TKIP with that. If using WPA2, then you use AES. Don't use both or mix and match.
If this isn't your issue, then try an open authentication and see if that works.