diff --git a/e2e/pages/Settings/NetworksView.js b/e2e/pages/Settings/NetworksView.js
index 21fd71eae8d..39c0f90d7d6 100644
--- a/e2e/pages/Settings/NetworksView.js
+++ b/e2e/pages/Settings/NetworksView.js
@@ -106,6 +106,10 @@ class NetworkView {
     return Matchers.getElementByText(NetworkViewSelectorsText.REMOVE_NETWORK);
   }
 
+  get saveButton() {
+    return Matchers.getElementByText(NetworkViewSelectorsText.SAVE_BUTTON);
+  }
+
   async getnetworkName(networkName) {
     return Matchers.getElementByText(networkName);
   }
@@ -175,6 +179,16 @@ class NetworkView {
     // Because in bitrise the keyboard is blocking the "Add" CTA
     await Gestures.waitAndTap(this.chainIdLabel);
   }
+
+  async tapSave() {
+    device.getPlatform() === 'ios'
+      ? await (async () => {
+          //swipe to dismiss iOS keypad
+          await Gestures.swipe(this.chainIDInput, 'up', 'fast', 0.3);
+          await Gestures.doubleTap(this.saveButton);
+        })()
+      : await Gestures.waitAndTap(this.saveButton);
+  }
 }
 
 export default new NetworkView();
diff --git a/e2e/resources/blacklistURLs.json b/e2e/resources/blacklistURLs.json
index 0501e0db685..1d1dec71849 100644
--- a/e2e/resources/blacklistURLs.json
+++ b/e2e/resources/blacklistURLs.json
@@ -12,6 +12,7 @@
     ".*stale.*",
     ".*phishing-detection.metafi.codefi.network/.*",
     ".*phishing-detection.cx.metamask.io/.*",
+    ".*eth.llamarpc.com/.*",
     ".*token-api.metaswap.codefi.network/.*"
   ]
 }
diff --git a/e2e/resources/networks.e2e.js b/e2e/resources/networks.e2e.js
index 5f3f1029d32..e10e9fdbaf9 100644
--- a/e2e/resources/networks.e2e.js
+++ b/e2e/resources/networks.e2e.js
@@ -76,7 +76,9 @@ const CustomNetworks = {
     providerConfig: {
       type: 'rpc',
       chainId: '0x1',
+      rpcUrlInvalid: 'https//rpc.mevblocker.io',
       rpcUrl: 'https://eth.llamarpc.com',
+      rpcUrlAlt: 'https://rpc.mevblocker.io',
       nickname: 'Ethereum Main Custom',
       ticker: 'ETH',
     },
diff --git a/e2e/selectors/Settings/NetworksView.selectors.js b/e2e/selectors/Settings/NetworksView.selectors.js
index a24dd3fb44d..cd6d2e06ab7 100644
--- a/e2e/selectors/Settings/NetworksView.selectors.js
+++ b/e2e/selectors/Settings/NetworksView.selectors.js
@@ -28,4 +28,5 @@ export const NetworkViewSelectorsText = {
   POPULAR_NETWORK_TAB: enContent.app_settings.popular,
   NO_MATCHING_SEARCH_RESULTS: enContent.networks.no_match,
   EMPTY_POPULAR_NETWORKS: enContent.networks.empty_popular_networks,
+  SAVE_BUTTON: enContent.app_settings.network_save,
 };
diff --git a/e2e/specs/onboarding/add-custom-eth-mainnet.spec.js b/e2e/specs/onboarding/add-edit-custom-eth-mainnet.spec.js
similarity index 53%
rename from e2e/specs/onboarding/add-custom-eth-mainnet.spec.js
rename to e2e/specs/onboarding/add-edit-custom-eth-mainnet.spec.js
index c0d41a6bdaf..eab2746fd40 100644
--- a/e2e/specs/onboarding/add-custom-eth-mainnet.spec.js
+++ b/e2e/specs/onboarding/add-edit-custom-eth-mainnet.spec.js
@@ -13,8 +13,14 @@ import WalletView from '../../pages/WalletView';
 import ProtectYourWalletView from '../../pages/Onboarding/ProtectYourWalletView';
 import NetworksView from '../../pages/Settings/NetworksView';
 import Accounts from '../../../wdio/helpers/Accounts';
-import { DEFAULT_MAINNET_CUSTOM_NAME } from '../../../app/constants/network';
 import { CustomNetworks } from '../../resources/networks.e2e';
+import TabBarComponent from '../../pages/TabBarComponent';
+import SettingsView from '../../pages/Settings/SettingsView';
+import NetworkListModal from '../../pages/modals/NetworkListModal';
+import OnboardingWizardModal from '../../pages/modals/OnboardingWizardModal';
+import ProtectYourWalletModal from '../../pages/modals/ProtectYourWalletModal';
+import WhatsNewModal from '../../pages/modals/WhatsNewModal';
+import TestHelpers from '../../helpers';
 
 const validAccount = Accounts.getValidAccount();
 
@@ -31,7 +37,9 @@ describe(Regression('Add custom default ETH Mainnet'), () => {
 
   it('should not edit default network with invalid RPC', async () => {
     await MetaMetricsOptIn.tapEditDefaultNetworkHere();
-    await DefaultNetworkView.typeRpcURL('https//rpc.mevblocker.io');
+    await DefaultNetworkView.typeRpcURL(
+      CustomNetworks.EthereumMainCustom.providerConfig.rpcUrlInvalid,
+    );
     await Assertions.checkIfVisible(NetworksView.rpcWarningBanner);
   });
 
@@ -43,7 +51,7 @@ describe(Regression('Add custom default ETH Mainnet'), () => {
     await Assertions.checkIfVisible(MetaMetricsOptIn.container);
   });
 
-  it('should show custom default ETH Mainnet as active', async () => {
+  it('should complete creating wallet', async () => {
     await MetaMetricsOptIn.tapAgreeButton();
     await TermsOfUseModal.tapScrollEndButton();
     await TermsOfUseModal.tapAgreeCheckBox();
@@ -57,6 +65,59 @@ describe(Regression('Add custom default ETH Mainnet'), () => {
     await SkipAccountSecurityModal.tapSkipButton();
     await OnboardingSuccessView.tapDone();
     await EnableAutomaticSecurityChecksView.tapNoThanks();
-    await WalletView.isNetworkNameVisible(DEFAULT_MAINNET_CUSTOM_NAME);
+    await OnboardingWizardModal.tapNoThanksButton();
+  });
+
+  it('should show custom default ETH Mainnet as active', async () => {
+    await WalletView.isNetworkNameVisible(
+      CustomNetworks.EthereumMainCustom.providerConfig.nickname,
+    );
+  });
+
+  it('should tap to close the whats new modal if displayed', async () => {
+    // dealing with flakiness on bitrise.
+    await TestHelpers.delay(2500);
+    try {
+      await WhatsNewModal.isVisible();
+      await WhatsNewModal.tapCloseButton();
+    } catch {
+      //
+    }
+  });
+
+  it('should navigate to Settings > Networks', async () => {
+    await Assertions.checkIfVisible(ProtectYourWalletModal.collapseWalletModal);
+    await ProtectYourWalletModal.tapRemindMeLaterButton();
+    await SkipAccountSecurityModal.tapIUnderstandCheckBox();
+    await SkipAccountSecurityModal.tapSkipButton();
+    await TabBarComponent.tapSettings();
+    await SettingsView.scrollToContactSupportButton();
+    await SettingsView.tapNetworks();
+    await Assertions.checkIfVisible(NetworksView.networkContainer);
+  });
+
+  it('should edit custom default mainnet and land on Wallet view', async () => {
+    await NetworksView.tapNetworkByName(
+      CustomNetworks.EthereumMainCustom.providerConfig.nickname,
+    );
+    await NetworksView.clearRpcInputBox();
+    await NetworksView.typeInRpcUrl(
+      CustomNetworks.EthereumMainCustom.providerConfig.rpcUrlAlt,
+    );
+    await NetworksView.tapSave();
+    await WalletView.isConnectedNetwork(
+      CustomNetworks.EthereumMainCustom.providerConfig.nickname,
+    );
+  });
+
+  it('should show Ethereum Main Custom on added network list', async () => {
+    await WalletView.tapNetworksButtonOnNavBar();
+    await NetworkListModal.changeNetworkTo(
+      CustomNetworks.EthereumMainCustom.providerConfig.nickname,
+      true, //setting this made this step work for iOS
+    );
+    await WalletView.isConnectedNetwork(
+      CustomNetworks.EthereumMainCustom.providerConfig.nickname,
+    );
   });
 });