diff --git a/libwvdrmengine/cdm/core/test/http_socket.cpp b/libwvdrmengine/cdm/core/test/http_socket.cpp
index 10a4abb1..f1d20daf 100644
--- a/libwvdrmengine/cdm/core/test/http_socket.cpp
+++ b/libwvdrmengine/cdm/core/test/http_socket.cpp
@@ -297,6 +297,10 @@ int HttpSocket::Read(char* data, int len, int timeout_in_ms) {
   int total_read = 0;
   int to_read = len;
 
+  if (socket_fd_ == -1) {
+    LOGE("Socket to %s not open.  Cannot read.", domain_name_.c_str());
+    return -1;
+  }
   while (to_read > 0) {
     if (!SocketWait(socket_fd_, /* for_read */ true, timeout_in_ms)) {
       LOGE("unable to read from %s", domain_name_.c_str());
@@ -332,6 +336,10 @@ int HttpSocket::Write(const char* data, int len, int timeout_in_ms) {
   int total_sent = 0;
   int to_send = len;
 
+  if (socket_fd_ == -1) {
+    LOGE("Socket to %s not open. Cannot write.", domain_name_.c_str());
+    return -1;
+  }
   while (to_send > 0) {
     int sent;
     if (secure_connect_)