Switching between networks (2G 3G 4G) makes apps think there is no internet

REPRODUCIBILITY (% or how often): Maybe 60% of the time
BUILD ID = OS VERSION (Settings > About product): 4.0.1.48
HARDWARE (XA2, Xperia 10…): xz2c
UI LANGUAGE:
REGRESSION: (compared to previous public release: Yes, No, ?): ? no idea if it happened in the past i just noticed

DESCRIPTION:

As the titile suggests. When the phone switched between networks you end up in a state where the apps cant access the internet.

PRECONDITIONS:

Crappy network coverage.

STEPS TO REPRODUCE:

  1. Be in a spot where the networks fall back from 4G to 3 or 2G
  2. As it switched back to a better network you cant access the internet

EXPECTED RESULT:

Have internet

ACTUAL RESULT:

No internet. You have to turn the mobile data off and on again for everything to work.

ADDITIONAL INFORMATION:

(Please ALWAYS attach relevant data such as logs, screenshots, etc…)

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