Why does it say Safari can't find the server?
To fix this issue, you need to clear the Safari website data and cache. Step 1: Open the Settings app on your iPhone and then scroll to Safari. Step 2: After that, tap on the Clear History and Website Data. Then, again open the Safari browser and load a web page and check if it is fixed.
Why can't my iPhone find my server?
Re-log into iCloud. If your Find my iPhone's unable to connect to the server, then you can try logging out of your iCloud first. Sometimes iCloud can have issues on your browser, so you can log out and log back into it to see if the server has been connected.