I did not find online anyone mentioning about this. But after I update my S8 to Android Oreo (8.0, the latest system version), my Project Fi lost its data connections.
I found this issue after I left home taking an Uber. I was standing outside and there was no WiFi. My S8 behaved as usual until I notice there was no LTE sign in the status bar. I opened the Uber app and it said "No Internet Connections." I tried other apps and finally found my LTE was gone.
Okay, so long story short, if you encounter the same problem as I did, here is the solution. I do not know why it happens, but the update triggers a change in the network access point settings. For S8, if you navigate to
Settings > Connections >Â Mobile Networks > Access Point Names
You will see Project Fi -Tm
is selected (there might be two of them). Click on the one that is already chosen and we'll edit the APN protocol
. The update somehow changes the APN protocol
to IPv6
only. Now change that to IPv4/IPv6
.
Everything now gets back to normal. đŸ˜€