diff --git a/src/protocols/rdp/settings.c b/src/protocols/rdp/settings.c
index dd8a96fb..e12e8c12 100644
--- a/src/protocols/rdp/settings.c
+++ b/src/protocols/rdp/settings.c
@@ -850,9 +850,24 @@ guac_rdp_settings* guac_rdp_parse_args(guac_user* user,
         guac_user_parse_args_boolean(user, GUAC_RDP_CLIENT_ARGS, argv,
                 IDX_DISABLE_OFFSCREEN_CACHING, 0);
 
-    settings->disable_glyph_caching =
-        guac_user_parse_args_boolean(user, GUAC_RDP_CLIENT_ARGS, argv,
-                IDX_DISABLE_GLYPH_CACHING, 0);
+    /* FreeRDP does not consider the glyph cache implementation to be stable as
+     * of 2.0.0, and it MUST NOT be used. Usage of the glyph cache results in
+     * unexpected disconnects when using older versions of Windows and recent
+     * versions of FreeRDP. See: https://issues.apache.org/jira/browse/GUACAMOLE-1191 */
+    settings->disable_glyph_caching = 1;
+
+    /* In case the user expects glyph caching to be enabled, either explicitly
+     * or by default, warn that this will not be the case as the glyph cache
+     * is not considered stable. */
+    if (!guac_user_parse_args_boolean(user, GUAC_RDP_CLIENT_ARGS, argv,
+            IDX_DISABLE_GLYPH_CACHING, 0)) {
+        guac_user_log(user, GUAC_LOG_DEBUG, "Glyph caching is currently "
+                "universally disabled, regardless of the value of the \"%s\" "
+                "parameter, as glyph caching support is not considered stable "
+                "by FreeRDP as of the FreeRDP 2.0.0 release. See: "
+                "https://issues.apache.org/jira/browse/GUACAMOLE-1191",
+                GUAC_RDP_CLIENT_ARGS[IDX_DISABLE_GLYPH_CACHING]);
+    }
 
     /* Session color depth */
     settings->color_depth =