topic Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help! in Aerohive Migrated Content

Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

juergen_dannewi — Tue, 26 Nov 2019 17:57:47 GMT

Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

samantha_lynn — Tue, 26 Nov 2019 23:48:57 GMT

Would you be able to enable auth debugs, replicate the connection issue, then pull tech data from the AP you used to replicate?

This guide reviews how to enable auth debugs: https://thehivecommunity.aerohive.com/s/article/Authentication-Auth-Debugs

This guide reviews how to get tech data from the ExtremeCloud IQ GUI: https://thehivecommunity.aerohive.com/s/article/How-to-download-tech-data-in-HiveManager

If you could send that tech data, and the MAC address of the client you used to replicate the issue, to me at communityhelp@aerohive.com, I can take a look and let you know what we find.

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

juergen_dannewi — Thu, 19 Dec 2019 20:26:31 GMT

Hi Sam,

do you have an update for me?

I´ve send the details via mail on 27/11/2019.

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

samantha_lynn — Thu, 19 Dec 2019 23:09:56 GMT

Thank you for checking in with me, I don't seem to have any mail from you on 27/11/2019, could you try sending it again to communityhelp@aerohive.com?

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

juergen_dannewi — Fri, 20 Dec 2019 01:11:01 GMT

Please see attached the “_debug auth all”-log.

The MAC address is “40b837c60276”.

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

samantha_lynn — Fri, 20 Dec 2019 01:51:04 GMT

Thank you for that data. I'm not seeing any issues for that MAC address, it seems to connect without issue:

2019-11-27 08:24:44 debug ah_auth: [auth_basic]: Got vlan ID 23 by User Profile ID 23 for station 40b8:37c6:0276

2019-11-27 08:24:43 info amrp2: misc: set VLAN ID 23 for station 40b8:37c6:0276

Is VLAN 23 correct for this user?

If it is, are you able to reach any internal resources or the default gateway for your network at all? Is this issue constant for the Android users? Also, would you be able to get a packet capture while trying to connect with an android device?

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

juergen_dannewi — Fri, 20 Dec 2019 15:23:47 GMT

VLAN 23 is correct and the device get a valid IP from the VLAN/DHCP.

The strange thing is that the device switches to Status "connected", when you ping the device.

The first 2-3 packages will getting lost, but after that it´s reachable.

If you mean with "constant" daily, yes. But if the device is in connected state, it stays in connected state a long period of time.

Which kind of package capture do you need?

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

samantha_lynn — Fri, 20 Dec 2019 20:55:20 GMT

A remote sniffer packet capture should be fine for what we're looking for.

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

juergen_dannewi — Fri, 17 Jan 2020 21:24:42 GMT

Hi,

I only want to update this topic:

we have changed the DHCP settings from an external to an internal DNS server in the same VLAN.
The devices always get an correct DHCP lease with the correct settings
The Android device will change his connection state, when you start a ping-command to its IP. The first 2 packages fails and than it´s reachable. the connection state is changing to "connected". Device routing problem?
If you disable "mobile data" on the device Wifi is also mostly working (Bad experience with OnePlus 6 -> ping workaround works for 1 day)

I used a 3rd Party app (Net Analyzer) to check the DNS. If the "internet mayb not connected"-state is active, Mobile data DNS route is used.

After ping workaround the DNS server is changing to the Wifi DNS.

I don´t know how android is checking if internet is available (e.g. ping to a website, dns request, etc.).

I´ve no experience and solution how to capture the traffic actually on android. Any instructions?

Thanks for any help!

Re: Hi, we have over 20 APs of AP250 and since some weeks issues with Android Devices. They get a valid IP from DHCP but the Smartphone OS (Android 8/9) is telling us, that we maybe don´t have internet connection. IoS is working correctly. Need help!

samantha_lynn — Fri, 17 Jan 2020 22:17:11 GMT

You could run a packet capture and then filter for the android clients MAC address, to see what traffic the android is sending out.