diff --git a/pkg/sentry/register/register.go b/pkg/sentry/register/register.go
index 45d4bee..bf9f756 100644
--- a/pkg/sentry/register/register.go
+++ b/pkg/sentry/register/register.go
@@ -233,16 +233,9 @@ func prepareConfig(config *Config) error {
 		return fmt.Errorf("invalid scheme %s", config.Scheme)
 	}
 
-	if config.Scheme == "" && strings.HasPrefix(config.Addr, "localhost") {
-		config.Scheme = schemeHTTP
-	}
-
-	if config.Scheme == "" && strings.Index(config.Addr, "rafay.local") > 0 {
-		config.Scheme = schemeHTTP
-	}
-
 	if config.Scheme == "" {
-		return fmt.Errorf("empty Schema not allowed")
+		_log.Debug("scheme not defined, defaulting to http")
+		config.Scheme = schemeHTTP
 	}
 
 	switch config.Mode {
diff --git a/pkg/service/authz.go b/pkg/service/authz.go
index 08106fa..92b030e 100644
--- a/pkg/service/authz.go
+++ b/pkg/service/authz.go
@@ -33,6 +33,7 @@ type authzService struct {
 }
 
 func NewAuthzService(db *bun.DB, en *casbin.CachedEnforcer) AuthzService {
+	// en.EnableCache(false) // disables caching in casbin
 	return &authzService{
 		db:           db,
 		enforcer:     en,
@@ -257,6 +258,7 @@ func (s *authzService) CreatePolicies(ctx context.Context, p *authzpbv1.Policies
 	if err != nil {
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }
 
@@ -266,6 +268,7 @@ func (s *authzService) DeletePolicies(ctx context.Context, p *authzpbv1.Policy)
 	if err != nil {
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }
 
@@ -289,6 +292,7 @@ func (s *authzService) CreateUserGroups(ctx context.Context, p *authzpbv1.UserGr
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
 
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }
 
@@ -299,6 +303,7 @@ func (s *authzService) DeleteUserGroups(ctx context.Context, p *authzpbv1.UserGr
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
 
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }
 
@@ -323,6 +328,7 @@ func (s *authzService) CreateRolePermissionMappings(ctx context.Context, p *auth
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
 
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }
 
@@ -332,5 +338,6 @@ func (s *authzService) DeleteRolePermissionMappings(ctx context.Context, p *auth
 		return nil, status.Errorf(codes.Internal, err.Error())
 	}
 
+	s.enforcer.InvalidateCache()
 	return &authzpbv1.BoolReply{Res: res}, nil
 }