diff --git a/src/Connection.c b/src/Connection.c
index 40b00c7..6668a75 100644
--- a/src/Connection.c
+++ b/src/Connection.c
@@ -209,12 +209,21 @@ int LiStartConnection(PSERVER_INFORMATION serverInfo, PSTREAM_CONFIGURATION stre
 
     if (drCallbacks != NULL && (drCallbacks->capabilities & CAPABILITY_PULL_RENDERER) && drCallbacks->submitDecodeUnit) {
         Limelog("CAPABILITY_PULL_RENDERER cannot be set with a submitDecodeUnit callback\n");
+        LC_ASSERT(false);
         err = -1;
         goto Cleanup;
     }
 
     if (drCallbacks != NULL && (drCallbacks->capabilities & CAPABILITY_PULL_RENDERER) && (drCallbacks->capabilities & CAPABILITY_DIRECT_SUBMIT)) {
         Limelog("CAPABILITY_PULL_RENDERER and CAPABILITY_DIRECT_SUBMIT cannot be set together\n");
+        LC_ASSERT(false);
+        err = -1;
+        goto Cleanup;
+    }
+
+    if (serverInfo->serverCodecModeSupport == 0) {
+        Limelog("serverCodecModeSupport field in SERVER_INFORMATION must be set!\n");
+        LC_ASSERT(false);
         err = -1;
         goto Cleanup;
     }