Certain app do not have internet access via cellular network after updated to android 9

[shimatsukaze]

Noticed there is a similar topic but I think my situation is a little different. I double checked my APN settings already(tried both download settings from carrier and manual configuration) and it didn't solve problem for my case.

The apps that is currently not working: QQ for mobile, shadowsocks.

They are working totally fine via wifi but not on mobile data.

And my carrier is T-mobile.

Anyone have some idea to share?

[shimatsukaze · Accepted solution]

Actually figured it out myself.

For some reason, after updated to android 9, the APN protocol setting is being set to stick with IPv6.

Change it to IPv4/IPv6 will solve this issue.

Case closed

[Jonas]

Hi @shimatsukaze, I'm glad to hear that you were able to resolve this and a huge thanks for letting everyone know how you solved it!

Have an awesome day!