diff --git a/pmpsdb_client/cli/__init__.py b/pmpsdb_client/cli/__init__.py
index 1d38b06..3ed958f 100644
--- a/pmpsdb_client/cli/__init__.py
+++ b/pmpsdb_client/cli/__init__.py
@@ -47,7 +47,10 @@ def _main(args: argparse.Namespace) -> int:
         print(version)
         return 0
     if args.verbose:
-        logging.basicConfig(level=logging.DEBUG)
+        logging.basicConfig(
+            level=logging.DEBUG,
+            format="%(asctime)s %(levelname)s: %(name)s %(message)s",
+        )
     else:
         logging.basicConfig(
             level=logging.INFO,
diff --git a/pmpsdb_client/plc_data.py b/pmpsdb_client/plc_data.py
index 6067918..b7226bc 100644
--- a/pmpsdb_client/plc_data.py
+++ b/pmpsdb_client/plc_data.py
@@ -63,21 +63,27 @@ def list_file_info(
         data_method = DataMethod.unk
 
     if data_method == DataMethod.ssh:
+        logger.debug("Using cached ssh method to list files for %s", hostname)
         return ssh_data.list_file_info(hostname=hostname, directory=directory)
     elif data_method == DataMethod.ftp:
+        logger.debug("Using cached ftp method to list files for %s", hostname)
         return ftp_data.list_file_info(hostname=hostname, directory=directory)
     elif data_method == DataMethod.unk:
+        logger.debug("Connection method unknown, check if ssh method works for %s", hostname)
         try:
             file_info = ssh_data.list_file_info(hostname=hostname, directory=directory)
         except Exception:
+            logger.debug("ssh failed, check if ftp method works for %s", hostname)
             try:
                 file_info = ftp_data.list_file_info(hostname=hostname, directory=directory)
             except Exception:
                 raise RuntimeError(f"Cannot get data method for {hostname}")
             else:
+                logger.debug("Cache %s method as ftp", hostname)
                 plc_mapping[hostname] = DataMethod.ftp
                 return file_info
         else:
+            logger.debug("Cache %s method as ssh", hostname)
             plc_mapping[hostname] = DataMethod.ssh
             return file_info
     else: