diff --git a/modules/csync_owncloud.c b/modules/csync_owncloud.c
index 0ee3a2d61..91a6fc60e 100644
--- a/modules/csync_owncloud.c
+++ b/modules/csync_owncloud.c
@@ -147,6 +147,8 @@ struct dav_session_s {
 
     char *session_key;
 
+    char *error_string;
+
     int read_timeout;
 
     long int prev_delta;
@@ -201,6 +203,13 @@ static void clean_caches() {
 char _buffer[PUT_BUFFER_SIZE];
 
 /* ***************************************************************************** */
+static void set_error_message( const char *msg )
+{
+    SAFE_FREE(dav_session.error_string);
+    if( msg )
+        dav_session.error_string = c_strdup(msg);
+}
+
 static void set_errno_from_http_errcode( int err ) {
     int new_errno = 0;
 
@@ -279,9 +288,11 @@ static int http_result_code_from_session() {
     char *q;
     int err;
 
+    set_error_message(p); /* remember the error message */
+
     err = strtol(p, &q, 10);
     if (p == q) {
-        err = EIO;
+        err = ERRNO_ERROR_STRING;
     }
     return err;
 }
@@ -289,8 +300,8 @@ static int http_result_code_from_session() {
 static void set_errno_from_session() {
     int err = http_result_code_from_session();
 
-    if( err == EIO ) {
-        errno = EIO;
+    if( err == EIO || err == ERRNO_ERROR_STRING) {
+        errno = err;
     } else {
         set_errno_from_http_errcode(err);
     }
@@ -337,7 +348,6 @@ static void set_errno_from_neon_errcode( int neon_code ) {
     }
 }
 
-
 /* cleanPath to return an escaped path of an uri */
 static char *_cleanPath( const char* uri ) {
     int rc = 0;
@@ -428,8 +438,9 @@ static int verify_sslcert(void *userdata, int failures,
         if( buf[0] == 'y' || buf[0] == 'Y') {
             ret = 0;
         } else {
-	    DEBUG_WEBDAV("Authentication callback replied %s", buf );
-	}
+            DEBUG_WEBDAV("Authentication callback replied %s", buf );
+
+        }
     }
     DEBUG_WEBDAV("## VERIFY_SSL CERT: %d", ret  );
     return ret;
@@ -992,7 +1003,7 @@ static struct listdir_context *fetch_resource_list(const char *uri, int depth)
             DEBUG_WEBDAV("ERROR: Request failed: status %d (%s)", req_status->code,
                          req_status->reason_phrase);
             ret = NE_CONNECT;
-
+            set_error_message(req_status->reason_phrase);
             if (_progresscb) {
                 _progresscb(uri, CSYNC_NOTIFY_ERROR,  req_status->code, (long long)(req_status->reason_phrase) ,dav_session.userdata);
             }
@@ -1017,6 +1028,7 @@ static struct listdir_context *fetch_resource_list(const char *uri, int depth)
             DEBUG_WEBDAV("ERROR: Content type of propfind request not XML: %s.",
                          content_type ?  content_type: "<empty>");
             errno = ERRNO_WRONG_CONTENT;
+            set_error_message("Server error: PROPFIND reply is not XML formatted!");
             ret = NE_CONNECT;
         }
     }
@@ -1042,8 +1054,8 @@ static struct listdir_context *fetch_resource_list(const char *uri, int depth)
             } else if( dav_session.time_delta_cnt > 1 ) {
                 if( time_diff_delta > 5 ) {
                     DEBUG_WEBDAV("WRN: The time delta changed more than 5 second");
-                    errno = ERRNO_TIMEDELTA;
-                    ret = OC_TIMEDELTA_FAIL;
+                    // errno = ERRNO_TIMEDELTA;
+                    // ret = OC_TIMEDELTA_FAIL;
                 } else {
                     DEBUG_WEBDAV("Ok: Time delta remained (almost) the same: %llu.", (unsigned long long) time_diff);
                 }
@@ -1923,6 +1935,11 @@ static int owncloud_chown(const char *uri, uid_t owner, gid_t group) {
     return 0;
 }
 
+static char *owncloud_error_string()
+{
+    return dav_session.error_string;
+}
+
 static int owncloud_utimes(const char *uri, const struct timeval *times) {
 
     ne_proppatch_operation ops[2];
@@ -2031,7 +2048,8 @@ csync_vio_method_t _method = {
     .chmod = owncloud_chmod,
     .chown = owncloud_chown,
     .utimes = owncloud_utimes,
-    .set_property = owncloud_set_property
+    .set_property = owncloud_set_property,
+    .get_error_string = owncloud_error_string
 };
 
 csync_vio_method_t *vio_module_init(const char *method_name, const char *args,
@@ -2059,6 +2077,7 @@ void vio_module_shutdown(csync_vio_method_t *method) {
     SAFE_FREE( dav_session.proxy_user );
     SAFE_FREE( dav_session.proxy_pwd  );
     SAFE_FREE( dav_session.session_key);
+    SAFE_FREE( dav_session.error_string );
 
     SAFE_FREE( _lastDir );
 
diff --git a/src/csync.c b/src/csync.c
index 1dcfc3f8f..e5ce61227 100644
--- a/src/csync.c
+++ b/src/csync.c
@@ -723,6 +723,7 @@ int csync_destroy(CSYNC *ctx) {
   SAFE_FREE(ctx->remote.uri);
   SAFE_FREE(ctx->options.config_dir);
   SAFE_FREE(ctx->statedb.file);
+  SAFE_FREE(ctx->error_string);
 
 #ifdef WITH_ICONV
   c_close_iconv();
diff --git a/src/csync_macros.h b/src/csync_macros.h
index 80a215897..547a69a8c 100644
--- a/src/csync_macros.h
+++ b/src/csync_macros.h
@@ -42,7 +42,7 @@
 #define ERRNO_REDIRECT      CSYNC_CUSTOM_ERRNO_BASE+10
 #define ERRNO_WRONG_CONTENT CSYNC_CUSTOM_ERRNO_BASE+11
 #define ERRNO_TIMEDELTA     CSYNC_CUSTOM_ERRNO_BASE+12
-
+#define ERRNO_ERROR_STRING  CSYNC_CUSTOM_ERRNO_BASE+13
 
 #endif /* _CSYNC_MACROS_H */
 /* vim: set ft=c.doxygen ts=8 sw=2 et cindent: */
diff --git a/src/csync_private.h b/src/csync_private.h
index 75559861b..9017813dd 100644
--- a/src/csync_private.h
+++ b/src/csync_private.h
@@ -150,6 +150,7 @@ struct csync_s {
 
   /* error code of the last operation */
   enum csync_error_codes_e error_code;
+  char *error_string;
   
   int status;
 };
diff --git a/src/vio/csync_vio.c b/src/vio/csync_vio.c
index 27dcbd945..a36ad141b 100644
--- a/src/vio/csync_vio.c
+++ b/src/vio/csync_vio.c
@@ -670,4 +670,13 @@ int csync_vio_set_property(CSYNC* ctx, const char* key, void* data)
   return rc;
 }
 
-
+char *csync_vio_get_error_string(CSYNC *ctx)
+{
+    if(ctx->error_string) {
+        return ctx->error_string;
+    }
+    if(VIO_METHOD_HAS_FUNC(ctx->module.method, get_error_string)) {
+        return ctx->module.method->get_error_string();
+    }
+    return NULL;
+}
diff --git a/src/vio/csync_vio.h b/src/vio/csync_vio.h
index 840966b14..b672fbfdd 100644
--- a/src/vio/csync_vio.h
+++ b/src/vio/csync_vio.h
@@ -65,4 +65,6 @@ int csync_vio_utimes(CSYNC *ctx, const char *uri, const struct timeval *times);
 
 int csync_vio_set_property(CSYNC *ctx, const char *key, void *data);
 
+char *csync_vio_get_error_string(CSYNC *ctx);
+
 #endif /* _CSYNC_VIO_H */
diff --git a/src/vio/csync_vio_method.h b/src/vio/csync_vio_method.h
index d4b59ef78..84bba5334 100644
--- a/src/vio/csync_vio_method.h
+++ b/src/vio/csync_vio_method.h
@@ -80,6 +80,8 @@ typedef int (*csync_method_utimes_fn)(const char *uri, const struct timeval time
 
 typedef int (*csync_method_set_property_fn)(const char *key, void *data);
 
+typedef char* (*csync_method_get_error_string_fn)();
+
 struct csync_vio_method_s {
         size_t method_table_size;           /* Used for versioning */
         csync_method_get_capabilities_fn get_capabilities;
@@ -103,6 +105,7 @@ struct csync_vio_method_s {
         csync_method_utimes_fn utimes;
         csync_method_sendfile_fn sendfile;
         csync_method_set_property_fn set_property;
+        csync_method_get_error_string_fn get_error_string;
 };
 
 #endif /* _CSYNC_VIO_H */