diff --git a/common/digestauth.py b/common/digestauth.py
index <HASH>..<HASH> 100644
--- a/common/digestauth.py
+++ b/common/digestauth.py
@@ -94,8 +94,8 @@ class auth(object):
             if nonceReaction == 2:
                 # Client sent a nonce we've never heard of before
                 if self.printdebug: self.printdebug("AUTH DEBUG unknownnonce")
-                #return self.send401UnauthorizedResponse() #test
-                return self.denyBadRequest() #original
+                return self.send401UnauthorizedResponse() #this seems more logical to me, otherwise we get bad request in case of server restart
+                #return self.denyBadRequest() #original
             if nonceReaction == 3:
                 # Client sent an old nonce.  Give the client a new one, and ask to authenticate again before continuing.
                 if self.printdebug: self.printdebug("AUTH DEBUG oldnonce")
send <I> instead of <I> when unknown nonce is presented