--- /usr/share/pyshared/ucsschool/lib/models/computer.py.bak	2019-04-08 09:34:45.004012314 +0200
+++ /usr/share/pyshared/ucsschool/lib/models/computer.py.bak	2019-04-08 09:52:39.279993670 +0200
@@ -290,7 +290,14 @@ 
 	@classmethod
 	def from_udm_obj(cls, udm_obj, school, lo):
 		from ucsschool.lib.models.school import School
-		obj = super(SchoolComputer, cls).from_udm_obj(udm_obj, school, lo)
+		try:
+			obj = super(SchoolComputer, cls).from_udm_obj(udm_obj, school, lo)
+		except KeyError:
+#			raise
+			import univention
+			x = univention.admin.modules.get(udm_obj.module)
+			univention.admin.modules.init(lo, univention.admin.uldap.getMachineConnection()[1], x)
+			obj = super(SchoolComputer, cls).from_udm_obj(udm_obj, school, lo)
 		obj.ip_address = udm_obj['ip']
 		school_obj = School.cache(obj.school)
 		edukativnetz_group = school_obj.get_administrative_group_name('educational', domain_controller=False, as_dn=True)