Fix stateful ledger dialog edge state

packages/website/ts/blockchain.ts

@@ -191,7 +191,6 @@ export class Blockchain {
         // tslint:disable-next-line:no-floating-promises
         this._onPageLoadInitFireAndForgetAsync();
     }
-    // TODO: Investigate if we need this.
     public async networkIdUpdatedFireAndForgetAsync(newNetworkId: number): Promise<void> {
         const isConnected = !_.isUndefined(newNetworkId);
         if (!isConnected) {
@@ -246,7 +245,7 @@ export class Blockchain {
         this._dispatcher.updateBlockchainIsLoaded(false);
         // We don't want to be out of sync with the network metamask declares.
         const networkId = await Blockchain._getInjectedWeb3ProviderNetworkIdIfExistsAsync();
-        await this._resetOrInitializeAsync(this.networkId, shouldPollUserAddress, userLedgerProvider);
+        await this._resetOrInitializeAsync(networkId, shouldPollUserAddress, userLedgerProvider);
     }
     public async setProxyAllowanceAsync(token: Token, amountInBaseUnits: BigNumber): Promise<void> {
         utils.assert(this.isValidAddress(token.address), BlockchainCallErrs.TokenAddressIsInvalid);

packages/website/ts/components/dialogs/ledger_config_dialog.tsx

@@ -282,6 +282,7 @@ export class LedgerConfigDialog extends React.Component<LedgerConfigDialogProps,
         if (didSucceed) {
             this.setState({
                 stepIndex: LedgerSteps.SELECT_ADDRESS,
+                connectionErrMsg: '',
             });
         } else {
             this.props.dispatcher.updateBlockchainIsLoaded(true);