diff --git a/sanic/server.py b/sanic/server.py
index bd0fdf37..81b68cb5 100644
--- a/sanic/server.py
+++ b/sanic/server.py
@@ -119,7 +119,7 @@ class HttpProtocol(asyncio.Protocol):
         self.router = router
         self.signal = signal
         self.access_log = access_log
-        self.connections = connections or set()
+        self.connections = connections if connections is not None else set()
         self.request_handler = request_handler
         self.error_handler = error_handler
         self.request_timeout = request_timeout
@@ -554,11 +554,15 @@ class HttpProtocol(asyncio.Protocol):
 
         :return: None
         """
-        if from_error or self.transport.is_closing():
+        if from_error or self.transport is None or self.transport.is_closing():
             logger.error(
                 "Transport closed @ %s and exception "
                 "experienced during error handling",
-                self.transport.get_extra_info("peername"),
+                (
+                    self.transport.get_extra_info("peername")
+                    if self.transport is not None
+                    else "N/A"
+                ),
             )
             logger.debug("Exception:", exc_info=True)
         else: