diff --git a/src/cert/acme2.js b/src/cert/acme2.js
index 44879278f..1cf20cb99 100644
--- a/src/cert/acme2.js
+++ b/src/cert/acme2.js
@@ -134,7 +134,7 @@ Acme2.prototype.updateContact = function (registrationUri, callback) {
 
     const that = this;
     this.sendSignedRequest(registrationUri, JSON.stringify(payload), function (error, result) {
-        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when registering user: ' + error.message));
+        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when updating contact: ${error.message}`));
         if (result.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to update contact. Expecting 200, got %s %s', result.statusCode, result.text)));
 
         debug(`updateContact: contact of user updated to ${that.email}`);
@@ -154,7 +154,7 @@ Acme2.prototype.registerUser = function (callback) {
 
     var that = this;
     this.sendSignedRequest(this.directory.newAccount, JSON.stringify(payload), function (error, result) {
-        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when registering new account: ' + error.message));
+        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when registering user: ${error.message}`));
         // 200 if already exists. 201 for new accounts
         if (result.statusCode !== 200 && result.statusCode !== 201) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to register new account. Expecting 200 or 201, got %s %s', result.statusCode, result.text)));
 
@@ -180,7 +180,7 @@ Acme2.prototype.newOrder = function (domain, callback) {
     debug('newOrder: %s', domain);
 
     this.sendSignedRequest(this.directory.newOrder, JSON.stringify(payload), function (error, result) {
-        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when registering domain: ' + error.message));
+        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when creating new order: ${error.message}`));
         if (result.statusCode === 403) return callback(new BoxError(BoxError.ACCESS_DENIED, `Forbidden sending signed request: ${result.body.detail}`));
         if (result.statusCode !== 201) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to register user. Expecting 201, got %s %s', result.statusCode, result.text)));
 
@@ -253,7 +253,7 @@ Acme2.prototype.notifyChallengeReady = function (challenge, callback) {
     };
 
     this.sendSignedRequest(challenge.url, JSON.stringify(payload), function (error, result) {
-        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when notifying challenge: ' + error.message));
+        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when notifying challenge: ${error.message}`));
         if (result.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to notify challenge. Expecting 200, got %s %s', result.statusCode, result.text)));
 
         callback();
@@ -272,7 +272,7 @@ Acme2.prototype.waitForChallenge = function (challenge, callback) {
         superagent.get(challenge.url).timeout(30 * 1000).end(function (error, result) {
             if (error && !error.response) {
                 debug('waitForChallenge: network error getting uri %s', challenge.url);
-                return retryCallback(new BoxError(BoxError.NETWORK_ERROR, error.message)); // network error
+                return retryCallback(new BoxError(BoxError.NETWORK_ERROR, `Network error waiting for challenge: ${error.message}`));
             }
             if (result.statusCode !== 200) {
                 debug('waitForChallenge: invalid response code getting uri %s', result.statusCode);
@@ -305,7 +305,7 @@ Acme2.prototype.signCertificate = function (domain, finalizationUrl, csrDer, cal
     debug('signCertificate: sending sign request');
 
     this.sendSignedRequest(finalizationUrl, JSON.stringify(payload), function (error, result) {
-        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when signing certificate: ' + error.message));
+        if (error) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when signing certificate: ${error.message}`));
         // 429 means we reached the cert limit for this domain
         if (result.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to sign certificate. Expecting 200, got %s %s', result.statusCode, result.text)));
 
@@ -354,7 +354,7 @@ Acme2.prototype.downloadCertificate = function (hostname, certUrl, callback) {
         res.on('data', function(chunk) { data.push(chunk); });
         res.on('end', function () { res.text = Buffer.concat(data); done(); });
     }).timeout(30 * 1000).end(function (error, result) {
-        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when downloading certificate'));
+        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when downloading certificate: ${error.message}`));
         if (result.statusCode === 202) return callback(new BoxError(BoxError.TRY_AGAIN, 'Retry not implemented yet'));
         if (result.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, util.format('Failed to get cert. Expecting 200, got %s %s', result.statusCode, result.text)));
 
@@ -485,7 +485,7 @@ Acme2.prototype.prepareChallenge = function (hostname, domain, authorizationUrl,
 
     const that = this;
     superagent.get(authorizationUrl).timeout(30 * 1000).end(function (error, response) {
-        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error when preparing challenge'));
+        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error when preparing challenge: ${error.message}`));
         if (response.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Invalid response code getting authorization : ' + response.statusCode));
 
         const authorization = response.body;
@@ -566,7 +566,7 @@ Acme2.prototype.getDirectory = function (callback) {
     const that = this;
 
     superagent.get(this.caDirectory).timeout(30 * 1000).end(function (error, response) {
-        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, 'Network error getting directory'));
+        if (error && !error.response) return callback(new BoxError(BoxError.NETWORK_ERROR, `Network error getting directory: ${error.message}`));
         if (response.statusCode !== 200) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Invalid response code when fetching directory : ' + response.statusCode));
 
         if (typeof response.body.newNonce !== 'string' ||