diff --git a/libraries/katabasis/include/katabasis/Requestor.h b/libraries/katabasis/include/katabasis/Requestor.h
index 61437f762..4bc0256ae 100644
--- a/libraries/katabasis/include/katabasis/Requestor.h
+++ b/libraries/katabasis/include/katabasis/Requestor.h
@@ -80,6 +80,9 @@ protected slots:
     /// Handle request error.
     void onRequestError(QNetworkReply::NetworkError error);
 
+    /// Handle ssl errors.
+    void onSslErrors(QList<QSslError> errors);
+
     /// Re-try request (after successful token refresh).
     void retry();
 
diff --git a/libraries/katabasis/src/Requestor.cpp b/libraries/katabasis/src/Requestor.cpp
index 7b6d26796..e53d4108c 100644
--- a/libraries/katabasis/src/Requestor.cpp
+++ b/libraries/katabasis/src/Requestor.cpp
@@ -40,6 +40,7 @@ int Requestor::get(const QNetworkRequest &req, int timeout/* = 60*1000*/) {
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     return id_;
 }
 
@@ -53,6 +54,7 @@ int Requestor::post(const QNetworkRequest &req, const QByteArray &data, int time
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     connect(reply_, SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(onUploadProgress(qint64,qint64)));
     return id_;
 }
@@ -69,6 +71,7 @@ int Requestor::post(const QNetworkRequest & req, QHttpMultiPart* data, int timeo
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     connect(reply_, SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(onUploadProgress(qint64,qint64)));
     return id_;
 }
@@ -83,6 +86,7 @@ int Requestor::put(const QNetworkRequest &req, const QByteArray &data, int timeo
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     connect(reply_, SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(onUploadProgress(qint64,qint64)));
     return id_;
 }
@@ -99,6 +103,7 @@ int Requestor::put(const QNetworkRequest & req, QHttpMultiPart* data, int timeou
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     connect(reply_, SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(onUploadProgress(qint64,qint64)));
     return id_;
 }
@@ -118,6 +123,7 @@ int Requestor::customRequest(const QNetworkRequest &req, const QByteArray &verb,
     timedReplies_.add(new Reply(reply_));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     connect(reply_, SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(onUploadProgress(qint64,qint64)));
     return id_;
 }
@@ -131,6 +137,7 @@ int Requestor::head(const QNetworkRequest &req, int timeout/* = 60*1000*/)
     timedReplies_.add(new Reply(reply_, timeout));
     connect(reply_, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestError(QNetworkReply::NetworkError)), Qt::QueuedConnection);
     connect(reply_, SIGNAL(finished()), this, SLOT(onRequestFinished()), Qt::QueuedConnection);
+    connect(reply_, &QNetworkReply::sslErrors, this, &Requestor::onSslErrors);
     return id_;
 }
 
@@ -180,6 +187,16 @@ void Requestor::onRequestError(QNetworkReply::NetworkError error) {
     QTimer::singleShot(10, this, SLOT(finish()));
 }
 
+void Requestor::onSslErrors(QList<QSslError> errors) {
+    int i = 1;
+    for (auto error : errors) {
+        qCritical() << "LOGIN SSL Error #" << i << " : " << error.errorString();
+        auto cert = error.certificate();
+        qCritical() << "Certificate in question:\n" << cert.toText();
+        i++;
+    }
+}
+
 void Requestor::onUploadProgress(qint64 uploaded, qint64 total) {
     if (status_ == Idle) {
         qWarning() << "O2Requestor::onUploadProgress: No pending request";