Why can't I access the network when I'm connected to Wi-Fi?

A: Please check if the router is faulty and set the phone to static IP and DNS

Please take 5 minutes to perform the following steps

1. Go to the Setting app.
2. Touch Network & internet> Wi-Fi.
3. Select the Wi-Fi you are already connected to.
4. Click on the gear setting icon >  Top right edit > Go to the Wi-Fi settings details screen
5. Click on Advanced options > Set IP to Static > Enter the IP address and DNS1.
6. Select Save when finished.

Figure 4- 4 Setting a static IP