Similar to setting a static IP on a computer, iPhones also support users in setting a static IP when wifi is enabled but unable to connect to the internet. To fix this, Mytour suggests users set a static IP for iPhone with a few simple steps. This trick can be applied to most iPhone devices like iPhone 7, 7 Plus, 6S, 6S Plus, 6, 6 Plus, 5s, 5, 4s. Let's start setting a static IP for iPhone now.
GUIDE TO SETTING STATIC IP FOR IPHONE 7, 7 plus, 6s, 6s plus, 6, 5s, 5, 4s
Step 1: First, from the user interface, access the Settings app.
Step 2: Next, select the Wifi option and turn on Wifi connection.
Step 3: After turning on Wifi connection, to check the IP address, first, you need to view the static IP address by tapping on the 'i' icon on the right side to view the IP address and proceed to set up a static IP for iPhone.
Step 4: Before setting up a static IP, you need to check in the DHCP section what the IP address and Router address are.
Step 5: Then switch to the Static tab to enter the static IP information you want to set up in the fields: IP address, DNS, Router address. However, it must correspond to the DHCP section as shown below.
https://Mytour.vn/cai-dat-ip-tinh-cho-iphone-5-6-2385n.aspx
Once you have completed setting up the IP address, router, and DNS, you can proceed to the network. You can also refer to tips to improve wifi quality for Android, iOS, or Windows phones. Wishing you successful implementation.