IssueTracker

Please share below details
1.  logcat logs
2.  adb -avd <NameofAVD> -verbose -show-kernel  (console logs)
3.  adb shell getprop | findstr finger  (build finger print )

logcat logs
https://docs.google.com/document/d/1NOrOm8ur71JJNXn5vFzXlduqDhBsQC39jZ0WWQudj6k/edit?usp=drive_web (emulator bug)

None of the commands work, adb doesn't look like to have the -avd parameter, and findstr was not found on my mac terminal.

@ Comment #1  - Can you update to the latest stable version of the Android Emulator v27+. Also what API level and version are you using for your AVD?  You can gather this information from the Bug Report extended controls: https://developer.android.com/studio/report-bugs.html#emulator-bugs

I have the same issue. API 26 Pixel 2 Emulator 27.1.2. Tested on other device configurations. Only thing that works is physical device.

I am also experiencing this issue. I already use the most updated api but emulator doesn't connect to internet. Is there any workaround available?

#1, #5 and #6:
  has network ever worked before ?
  have you tried older version of apis ?

#2:
emulator -avd <avdname> -verbose -show-kernel |tee emulator.log

adb logcat |tee logcat.txt

adb shell dumpsys connectivity

#1: did you just upgraded to Mac OS X 10.13.1 ? did it work before upgrade ?

Can somebody help us with regards to this issue? I've updated all the tools but my emulator can't still connect to internet.

#9: right, on it;
but need some more info as requested in #7 and #8 so I can understand it more

Yes it worked before, yesterday I updated my sdks to the latest one, and the emulator can't connect to internet. I tried using api 25 and 27, just the same, no internet connection.

It seems to work on emulator using api 23

#11: what is your current emulator version ?
emulator -version

Android emulator version 27.0.5.0 (build_id 4530189) (CL:eb0c935c5432998039180210e4fef5227e7c284c)

ok, you are using 27.0.5
you can try: previous version:(27.0.2)
http://dl.google.com/android/repository/emulator-darwin-4498654.zip

#11 I am on 27.0.2 and the problem is still there.

erratum, #11 forget what I told you the 27.0.2 is apparently fine, just re-created the avd and now network is back.

#11 I just caught the scenario I guess. It was working ok, but once I launched a second  avd at the same time of the previous one, Both avds network suddenly stoped to work. I am still on 27.0.2

I have the same issue with emulator API > 23. I have Mac OSX 10.13.2. Also see that for Nougat android emulator ip is 192.168.200(232).2. And i can ping 8.8.8.8, but any domain names are not resolved. Also i see that there is not default gateway for ipv4 (command route -n).

#19, seems the DNS related.
Can you start the emulator from the command line and put the parameter -dns-server <DNSIP>?

It is DNS related. running the command Library/Android/sdk/tools/emulator @Pixel_2_XL_API_26 -dns-server 8.8.8.8
(replace swith emulator) fixes the issue and internet works again.

I've downgraded emulator to previous version:(27.0.2) (post #15), recreated avd, but still doesn't work. I can make it working only with setup proxy via local host machine (e.g. Squid application), in this case proxy address: 10.0.2.2 (host machine ip)

#21 and #22,
Thanks for the isolating the problem.
Could you help collecting the debug information by running the emulator into the NO-connection situation?

emulator -avd <avdname> -verbose -show-kernel |tee emulator.log

adb logcat |tee logcat.txt

adb shell dumpsys connectivity

sorry for the late response, here is the output:

I also experienced the same problem on Windows.
When I fixed the IP address of the network adapter and emptied the DNS, I noticed that there was no Internet connection of the emulator.

#25, we are debugging this connectivity issue.

Could you help collecting the debug information by running the emulator into the NO-connection situation?

emulator -avd <avdname> -verbose -show-kernel |tee emulator.log

adb logcat |tee logcat.txt

adb shell dumpsys connectivity

Hi,
Here's the info you asked for in my case

Android Studio Version: 3.0.1

Emulator Version: 27.1.10

HAXM / KVM Version: HAXM 6.2.1

Android SDK Tools: 27.0.3

Host Operating System: Mac OS X 10.13.3

CPU Manufacturer: Intel CPU
Virtualization is supported
64-bit CPU

Steps to Reproduce Bug:
Run an emulator when connected on Wi-Fi

Expected Behavior: Network connection works
Observed Behavior: Network connection does not work (timeout)

- does not happen when I run the emulator while connected with ethernet
- does not happen when I run the emulator with -dns-server 8.8.8.8,8.8.4.4

Attached are the things you asked for in the no network situation

Hi, I'm #25. The environment I tested is as follows.

Host:
Windows 10
Intel(R) Ethernet Connection I217-LM (wired)
IPv4 properties
  Fixed IP address 192.168.1.42 / 255.255.255.0
  Default gateway 192.168.1.1
  DNS [blank]

SDK:
AndroidStudio 3.0.1
Emulator 27.1.10
HAXM 6.2.1

#28, thanks for the information. It is very useful for debugging.

From the log
emulator: Found 4 DNS servers: fec0:0:0:ffff::1 fec0:0:0:ffff::2 fec0:0:0:ffff::3 fe80::1
Seems your system has some anycast ipv6 DNS servers.

Could you start the emulator with -dns-server fe80::1 ?

I tried -dns-server fe80::1 option, but I could not connect.
It was connected by setting the host's IPv4 DNS correctly or attaching the -dns-server 192.168.1.1 option.

#30, very helpful, Thanks!
When you say the emulator could not connect, can you connect Internet from your windows host?
Can you post the the output of ipconfig /all in this situation?

#31,  Windows host has access to the Internet without problems.

#32, interesting... From your ipconfig, 192.168.1.1 is not listed as the DNS server.
Can you run dnslookup www.google.com from your windows cmd and paste the output?
Thanks!

#33, Results of nslookup are as follows.

>nslookup www.google.com
サーバー:  UnKnown
Address:  fe80::1

権限のない回答:
名前:    www.google.com
Addresses:  2404:6800:4004:80f::2004
          216.58.197.4

I am facing the same issue. API 25 and above , no internet connection no matter what. Tried almost all mentioned above.

Android Emulator version 27.1.12.

How can I downgrade from android studio ?

I had same issue but only at home (not at office).

My solution was to manually set DNS in macOS settings, ensure having: 8.8.8.8 and 8.8.4.4.

This was not related to android or the simulator but I guess my box to connect internet.

The same thing on oreo emulator
Lollipop works, but not on Oreo avd.

Project: platform/external/qemu
Branch: emu-master-dev

commit 703201440866562b7b6993811a2fe5fdac2d4c8f
Author: huans <huans@google.com>
Date:   Wed Mar 07 16:40:22 2018

    Filter out the unavailable ipv6 dns server
   
    Bug: 70549904
    Test: Manual
    Change-Id: Iac92885aefafc6544543632dd850443fd19bc837

M       android/android-emu/android/base/network/Dns.cpp

https://android-review.googlesource.com/635806
https://goto.google.com/android-sha1/703201440866562b7b6993811a2fe5fdac2d4c8f

Project: platform/external/qemu
Branch: emu-2.7-release

commit 70b9ff9d3f457c6850ca7f3f8d539c33e1054f0c
Author: huans <huans@google.com>
Date:   Wed Mar 07 16:40:22 2018

    Filter out the unavailable ipv6 dns server
   
    Bug: 70549904
    Test: Manual
    Change-Id: Iac92885aefafc6544543632dd850443fd19bc837
    (cherry picked from commit 703201440866562b7b6993811a2fe5fdac2d4c8f)

M       android/android-emu/android/base/network/Dns.cpp

https://android-review.googlesource.com/682868
https://goto.google.com/android-sha1/70b9ff9d3f457c6850ca7f3f8d539c33e1054f0c

https://drive.google.com/file/d/1_EEqKc_MgMT6ejw8Map6KmfztJ7Mn_yC/view?usp=drive_web (guava-24.1.1.tar.gz)

Looks like I'm having the same issue again on 28.0.16 on macOS Mojave. No network available on the emulator, wifi or LTE.

Launching it with "-dns-server 8.8.8.8" arg fixes the issue

I am facing the same issue in android emulator, No Internet connection. Tried all stackoverflow methods etc etc, but still the same issue. Windows 10 is my OS