diff --git a/bundles/icinga2/files/icinga2/downtimes.conf b/bundles/icinga2/files/icinga2/downtimes.conf
index 229e8e3..31195be 100644
--- a/bundles/icinga2/files/icinga2/downtimes.conf
+++ b/bundles/icinga2/files/icinga2/downtimes.conf
@@ -14,21 +14,5 @@ object ScheduledDowntime "unattended_upgrades" {
 
     child_options = "DowntimeTriggeredChildren"
 }
-%     for also_host in sorted(monitored_node.metadata.get('icinga_options/downtime_also_for', set())):
-object ScheduledDowntime "unattended_upgrades_also_for_${also_host}" {
-    host_name = "${repo.get_node(also_host).name}"
-
-    author = "upgrade-and-reboot"
-    comment = "Downtime for upgrade-and-reboot of ${monitored_node.name}"
-
-    fixed = true
-
-    ranges = {
-        "${days[monitored_node.metadata.get('apt/unattended_upgrades/day', 5)]}" = "01:${monitored_node.magic_number%30}-01:${(monitored_node.magic_number%30)+30}"
-    }
-
-    child_options = "DowntimeTriggeredChildren"
-}
-%     endfor
 %   endif
 % endfor
diff --git a/bundles/icinga2/files/icinga2/hosts.conf b/bundles/icinga2/files/icinga2/hosts.conf
index 53f8600..2399637 100644
--- a/bundles/icinga2/files/icinga2/hosts.conf
+++ b/bundles/icinga2/files/icinga2/hosts.conf
@@ -18,6 +18,16 @@ object Host "${monitored_node.name}" {
     vars.notification.sms = ${str(monitored_node.metadata.get('icinga_options/vars.notification.sms', True)).lower()}
     vars.notification.mail = true
 }
+%   for depends_on_host in sorted(monitored_node.metadata.get('icinga_options/also_affected_by', set())):
+object Dependency "${monitored_node.name}_depends_on_${depends_on_host}" {
+    parent_host_name = "${depends_on_host}"
+    child_host_name = "${monitored_node.name}"
+    states = [ Up ]
+    disable_checks = true
+    disable_notifications = true
+    ignore_soft_states = true
+}
+%   endfor
 % endfor
 
 apply Dependency "disable-service-checks-on-host-down" to Service {
diff --git a/nodes/home/nas.py b/nodes/home/nas.py
index 09ae5cc..fe68d1e 100644
--- a/nodes/home/nas.py
+++ b/nodes/home/nas.py
@@ -50,13 +50,6 @@ nodes['home.nas'] = {
         'groups': {
             'nas': {},
         },
-        'icinga_options': {
-            'downtime_also_for': {
-                # FIXME maybe autogenerate that from bundle:vmhost?
-                'home.router',
-                'home.downloadhelper',
-            },
-        },
         'iptables': {
             'port_rules': {
                 '4679': { # Dell ULNM
diff --git a/nodes/home/router.py b/nodes/home/router.py
index 50fa459..4390bef 100644
--- a/nodes/home/router.py
+++ b/nodes/home/router.py
@@ -74,9 +74,14 @@ nodes['home.router'] = {
             },
         },
         'icinga_options': {
+            'also_affected_by': {
+                'home.nas',
+                'ovh.wireguard',
+            },
             # disabled on group level
             'vars.notification.sms': True
         },
+
         'iptables': {
             'custom_rules': [
                 # This is a router. Allow forwarding traffic for internal networks.