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No internet connection error when attempting to connect to Google Play Store.

Wilson | Last updated: Jul 19, 2018 06:11PM UTC

Have cacert.cer installed on Android device and surfing web http and https sites. However when attempting to go to Google Play Store a message there is "No internet connection. Make sure WiFi or cellular data is turned on, then try again" is displayed. WiFi is active, but cellular service is disabled. Any suggestions of what I may be overlooking or is this a normal situation? TIA Wilson

Burp User | Last updated: Jul 19, 2018 06:36PM UTC

Discovered a useful tab, "Alerts". Displayed in the tab is the following message: "The client failed to negotiate an SSL connection to www.googletagmanager.com:443: Received fatal alert: certificate unknown. It would seem that Google is raising a disparaging military salute back to me over the cert in use. Is this an accurate assessment and is there a way to work around what appears to be Google's antisocial behavior? Tia Wilson

Liam, PortSwigger Agent | Last updated: Jul 20, 2018 07:39AM UTC

Which version of Android are you using? Since Android Nougat, Android no longer trusts user or admin supplied CA certificates. We recommend that you use an older version of Android for your testing. If you must use Android Nougat then you will need to install a trusted CA at the Android OS level on a rooted device or emulator. If you are using an older version of Android, it may be that this version of Google Play Store does not obey proxy settings. What I suggest you do is set up a laptop as a wireless access point, and connect the phone to the access point. Run Wireshark on the laptop and open the the Play Store. This will show the network traffic, which you can analyse to work out what's going on. Please let us know if you need any further assistance.

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