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<aname="best-practices--network-changes"></a><h2class="show-anchors"><div>Network Changes<divclass="anchors"><aclass="self"href="/v5/concepts/best-practices/#best-practices--network-changes"></a></div></div></h2><p>Handling a change in the network (e.g. Ropsten vs Mainnet) is incredibly complex and a slight failure can at best make your application seem confusing and at worst cause the loss of funds, leak private data or misrepresent what an action performed.</p>
<p>Luckily, standard users should likely never change their networks unless tricked to do so or they make a mistake.</p>
<p>This is a problem you mainly need to worry about for developers, and most developers should understand the vast array of issues surrounding a network change during application operation and will understand the page reloading (which is already the default behaviour in many clients).</p>
<p>So, the best practice when a network change occurs is to simply refresh the page. This should cause all your UI components to reset to a known-safe state, including any banners and warnings to your users if they are on an unsupported network.</p>
<divclass="code-title"><div>Automatically Refresh on Network Change</div></div><divclass="code"><spanclass="comment">// Force page refreshes on network changes
</span>{
<spanclass="comment"> // The "any" network will allow spontaneous network changes
</span> const provider = new ethers.providers.Web3Provider(window.ethereum, "any");
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