diff --git a/src/ca/access.cpp b/src/ca/access.cpp
index 9a3aecb07..7e263517e 100644
--- a/src/ca/access.cpp
+++ b/src/ca/access.cpp
@@ -119,7 +119,9 @@ const char * ca_message_text []
 "Invalid channel priority",
 "Preemptive callback not enabled - additional threads may not join context",
 "Client's protocol revision does not support transfers exceeding 16k bytes",
-"Virtual circuit connection sequence aborted"
+"Virtual circuit connection sequence aborted",
+
+"Virtual circuit unresponsive"
 };
 
 static epicsThreadOnceId caClientContextIdOnce = EPICS_THREAD_ONCE_INIT;
diff --git a/src/ca/caerr.h b/src/ca/caerr.h
index 60c359e40..37c77ad97 100644
--- a/src/ca/caerr.h
+++ b/src/ca/caerr.h
@@ -143,6 +143,7 @@
 #define ECA_NOTTHREADED     DEFMSG(CA_K_ERROR,     57)
 #define ECA_16KARRAYCLIENT  DEFMSG(CA_K_WARNING,   58)
 #define ECA_CONNSEQTMO      DEFMSG(CA_K_WARNING,   59)
+#define ECA_UNRESPTMO       DEFMSG(CA_K_WARNING,   60)
 
 #ifdef __STDC__ 
 #define CAERR_USE_FUNC_PROTO