The IP address your router displays to the Internet will also rarely change; you can find out what it is by going to

Go to your schools IT staff and show the problem to them. Two options: 1: Like you mentioned and change from DHCP to static. 2: go to the router settings by typing the default gateway address in your URL bar on chrome/ie/ I'd suggest forgetting the network and then connecting to it.

Make the selection of the Network by visiting the View menu. You have to select the Wi-Fi and later on click on the advanced button which is positioned at the lower-left hand corner of your screen
Private IP addresses are usually monitored with Network Address Translation (NAT) to connect through a single public IP address. For example: If the router’s IP address is 194.246.0.1, other devices connected to it may be assigned the following addresses: 194.246.0.10. 194.246.0.10.
And while it’s entirely possible that a third-party register and an official register attach the same physical location to the same IP address, it’s equally possible that they could disagree, and while the official one thinks your IP address is in Ecuador, the third-party one thinks it’s in Paris. So that’s part of the problem.
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