diff --git a/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml b/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
index 127b3c35bd..b5b80a3010 100644
--- a/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
+++ b/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
@@ -364,7 +364,6 @@ Cura.MachineAction
             {
                 id: addressField
                 width: parent.width
-                maximumLength: 40
                 validator: RegExpValidator
                 {
                     regExp: /[a-zA-Z0-9\.\-\_]*/
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 3eb7cb1c32..610ee1473e 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1819,9 +1819,9 @@
                     "unit": "mm",
                     "type": "float",
                     "default_value": 0.1,
-                    "minimum_value": "resolveOrValue('layer_height')",
+                    "minimum_value": "resolveOrValue('layer_height') if infill_line_distance > 0 else -999999",
                     "maximum_value_warning": "0.75 * machine_nozzle_size",
-                    "maximum_value": "resolveOrValue('layer_height') * (1.45 if spaghetti_infill_enabled else 8)",
+                    "maximum_value": "resolveOrValue('layer_height') * (1.45 if spaghetti_infill_enabled else 8) if infill_line_distance > 0 else 999999",
                     "value": "resolveOrValue('layer_height')",
                     "enabled": "infill_sparse_density > 0 and not spaghetti_infill_enabled",
                     "limit_to_extruder": "infill_extruder_nr",