diff --git a/src/vpn_manager_globalprotect/backend.py b/src/vpn_manager_globalprotect/backend.py
index 8dda41b..7be12b4 100644
--- a/src/vpn_manager_globalprotect/backend.py
+++ b/src/vpn_manager_globalprotect/backend.py
@@ -78,6 +78,8 @@ class GlobalProtectConnection(
     async def _prelogin(self, options: dict[str, Variant]):
         """Perform prelogin request."""
 
+        self.logger.debug("Begin preauth with options:", {options})
+
         ## Extract options from vardict
         if "spoof_clientos" in options:
             clientos = options["spoof_clientos"].value
@@ -143,6 +145,8 @@ class GlobalProtectConnection(
                 # Raise a D-Bus generic prelogin failure
                 raise errors.PreloginFailure(f"An unexpected error occurred: {rootex}")
 
+        self.logger.debug("Got XML response:", res.text)
+
         # Pass XML parsing off to agent for security reasons
         result = await self._manager.request_credentials(
             AuthFlows.GLOBALPROTECT_PARSE_PRELOGIN, Variant("s", res.text)
@@ -154,11 +158,16 @@ class GlobalProtectConnection(
                 "Received unexpected response from agent. Expected strdict (a{ss}), got "
                 f"{result.signature}"
             )
+
+        self.logger.debug("Got parsed result", result.value)
+
         return result.value
 
     async def authenticate(self, options: dict[str, Variant]) -> Variant:
         f"""{super().authenticate.__doc__}"""
 
+        self.logger.info("Starting GlobalProtect authentication.")
+
         preauth: dict[str, str] = await self._prelogin(options)
 
         if "saml-auth-method" not in preauth or "saml-request" not in preauth: