diff --git a/libwvdrmengine/cdm/core/test/test_base.cpp b/libwvdrmengine/cdm/core/test/test_base.cpp
index 7a0dd653..192d87ff 100644
--- a/libwvdrmengine/cdm/core/test/test_base.cpp
+++ b/libwvdrmengine/cdm/core/test/test_base.cpp
@@ -186,11 +186,15 @@ bool ExtractSignedMessage(const std::string& response,
 // TODO(b/242744857): This extra debugging may not be needed in all cases. When
 // provisioning fails, this dumps the cert and other information.
 std::string DumpProvAttempt(const std::string& url, const std::string& request,
-                            const std::string& http_message) {
+                            const std::string& http_message,
+                            CdmEngine* cdm_engine) {
   std::stringstream info;
   info << "Provisioning url: " << url << "\n";
   info << "Request: " << wvutil::unlimited_b2a_hex(request) << "\n";
   info << "http_message: " << wvutil::unlimited_b2a_hex(http_message) << "\n";
+  std::string system_id;
+  cdm_engine->QueryStatus(kLevelDefault, QUERY_KEY_SYSTEM_ID, &system_id);
+  info << "system id: " << system_id << "\n";
   if (wvoec::global_features.derive_key_method ==
       wvoec::DeviceFeatures::TEST_PROVISION_30) {
     std::vector<uint8_t> cert;
@@ -468,7 +472,10 @@ void WvCdmTestBase::Provision() {
 
     // Receive and parse response.
     std::string http_message;
-    ASSERT_NO_FATAL_FAILURE(url_request.AssertOkResponse(&http_message));
+    ASSERT_NO_FATAL_FAILURE(url_request.AssertOkResponse(&http_message))
+        << "Failed to fetch provisioning response. "
+        << DumpProvAttempt(provisioning_server_url, prov_request, http_message,
+                           &cdm_engine);
 
     if (binary_provisioning_) {
       // extract provisioning response from received message
@@ -501,13 +508,13 @@ void WvCdmTestBase::Provision() {
                               &wrapped_key))
           << "Binary provisioning failed. "
           << DumpProvAttempt(provisioning_server_url, prov_request,
-                             http_message);
+                             http_message, &cdm_engine);
     } else {
       ASSERT_EQ(NO_ERROR, cdm_engine.HandleProvisioningResponse(
                               http_message, kLevelDefault, &cert, &wrapped_key))
           << "Non-binary provisioning failed. "
           << DumpProvAttempt(provisioning_server_url, prov_request,
-                             http_message);
+                             http_message, &cdm_engine);
     }
   }
 }