If you made settings that rely on the IP address to stay the same (for example port forwarding), they would no longer work because the IP address has changed. This is why it is often recommended to set up a static IP address in conjunction with other connectivity troubleshooting steps.Setting up a local static IP is easy and can be done through Windows. If you want to reverse the settings at any point, simply choose Obtain an IP address automatically from this dialogue above and restart your computer.Bear in mind that you only need to change your local IP. Setting up a static IPStart by opening the Control Panel. For more information please check this Microsoft FAQ.
Once you get the pop-up window, select “Enter the IP address you want” and fil the IP Address, For Subnet Mask, and Default Gateway Address enter the values that you have noted down previously. To switch to dynamic IP, click on Obtain the IP address automatically.
Once this is enabled, your system will start picking an IP address dynamically from the router.
Right Click on your Current Network Adapter ( like Wi Fi) and choose Properties.
When the new window pops up, select Internet Protocol Version 4(TCP/IPv4) and click on Properties.
Though make sure the last digit should be between a 0-255 range.
Assigning Static IP address to most devices is easy, just go to its network settings, look for DHCP option and turn it OFF.
In case you find it too confusing, you are not alone.
You can do the same via GUI which is much more intuitive.
Wherein, Wi-Fi should be replaced by your adapter name and the IP, subnet mask and gateway address according to your configuration.
This will change your IP address from DHCP to manual with the static IP address you have specified.