Android WiFi Calling VoWifi not working, wont resolve domain

[paul.mu...@gmail.com]

Hi, with the Google DNS VoWifi isn't working for me.

The needed address for Vodafone.de is: 

epdg.epc.mnc002.mcc262.pub.3gppnetwork.org

However its working with some other dns servers, local ones and opendns, but not level3.

The date and time you encountered the problem

2017.01.16 19:00 gmt+1

Your location

Germany, Berlin

The platform on which you are noticing the problem (e.g. Mac, Windows, router, etc.)

Android 6.0.1 and Windows 10 x64

The hostname(s) for which you are having a problem

epdg.epc.mnc002.mcc262.pub.3gppnetwork.org

Whether the problem is continuous or intermittent

continuous

The links to the tools' name server diagnosis report page

http://dnsviz.net/d/epdg.epc.mnc002.mcc262.pub.3gppnetwork.org/dnssec/

dnsviz threw some errors:

epdg.epc.drz1.vodafone-ip.de/A (NODATA): The Authoritative Answer (AA) flag was not set in the response. (145.253.3.32, 145.253.3.34, 145.253.3.36, UDP_0_EDNS0_32768_4096)
epdg.epc.drz1.vodafone-ip.de/AAAA (NODATA): The Authoritative Answer (AA) flag was not set in the response. (145.253.3.32, 145.253.3.34, 145.253.3.36, UDP_0_EDNS0_32768_4096)

The output of the commands you ran in the diagnostic tests

C:\Users\?>nslookup epdg.epc.mnc002.mcc262.pub.3gppnetwork.org 8.8.8.8
Server:  google-public-dns-a.google.com
Address: 8.8.8.8


Nicht autorisierende Antwort:
Nicht autorisierende Antwort:
Name:    epdg.epc.mnc002.mcc262.pub.3gppnetwork.org




C:\Users\?>nslookup epdg.epc.mnc002.mcc262.pub.3gppnetwork.org 194.150.168.168
Server:  dns.as250.net
Address: 194.150.168.168


Nicht autorisierende Antwort:
Name:    epdg.epc.drz1.vodafone-ip.de
Addresses:139.7.117.162
          139.7.117.161
Aliases:  epdg.epc.mnc002.mcc262.pub.3gppnetwork.org




C:\Users\?>nslookup epdg.epc.mnc002.mcc262.pub.3gppnetwork.org 4.2.2.1
Server:  a.resolvers.level3.net
Address: 4.2.2.1


Nicht autorisierende Antwort:
Nicht autorisierende Antwort:
Name:    epdg.epc.mnc002.mcc262.pub.3gppnetwork.org


C:\Users\?>nslookup epdg.epc.mnc002.mcc262.pub.3gppnetwork.org 208.67.222.222
Server:  resolver1.opendns.com
Address: 208.67.222.222


Nicht autorisierende Antwort:
Name:    epdg.epc.drz1.vodafone-ip.de
Addresses:139.7.117.162
          139.7.117.161
Aliases:  epdg.epc.mnc002.mcc262.pub.3gppnetwork.org