A customer, whose smartphone's screen was recently repaired, reports that the device has no internet access through Wi$-$Fi$.$ The device shows that it is connected to Wi$-$Fi$,$ has an address of $192\mathrm{.}168\mathrm{.}1\mathrm{.}42,$ and has no subnet mask. Which of the following should the technician check next?

A$.$ Internal antenna connections

B$.$ Static IP settings

C$.$ Airplane mode

D$.$ Digitizer calibration