Increase timeout to wait the default network is restored

3 seconds were too short to wait the network validation.
This CL also updates error message to include more information that
helps investigation.

Test: TH
Bug: 354475907
Bug: 354475880
Bug: 354104252
Change-Id: I513a5bd8af44df47f18773f8fa49323986757e0d
1 file changed