diff --git a/src/slic3r/GUI/ReleaseNote.cpp b/src/slic3r/GUI/ReleaseNote.cpp
index fa6bab3eb3..068896389a 100644
--- a/src/slic3r/GUI/ReleaseNote.cpp
+++ b/src/slic3r/GUI/ReleaseNote.cpp
@@ -1736,7 +1736,8 @@ void InputIpAddressDialog::set_machine_obj(MachineObject* obj)
     auto str_ip = m_input_ip->GetTextCtrl()->GetValue();
     auto str_access_code = m_input_access_code->GetTextCtrl()->GetValue();
     // ORCA enabling / disabling buttons with conditions enough to change its style
-    m_button_ok->Enable(isIp(str_ip.ToStdString()) && str_access_code.Length() >= 8);
+    m_button_ok->Enable(isIp(str_ip.ToStdString()) &&
+                        (str_access_code.IsEmpty() || str_access_code.Length() >= 8));
 
     Layout();
     Fit();
@@ -1801,6 +1802,8 @@ void InputIpAddressDialog::on_ok(wxMouseEvent& evt)
     m_trouble_shoot->Hide();
     std::string str_ip = m_input_ip->GetTextCtrl()->GetValue().ToStdString();
     std::string str_access_code = m_input_access_code->GetTextCtrl()->GetValue().ToStdString();
+    if (str_access_code.empty())
+        str_access_code = "88888888";
     std::string str_name = m_input_printer_name->GetTextCtrl()->GetValue().Strip(wxString::both).ToStdString();
     // Serial number should not contain lower case letters, and bambu_network plugin crashes
     // if user entered the wrong serial number, so we call `Upper()` here.
@@ -1835,6 +1838,8 @@ void InputIpAddressDialog::on_send_retry()
     Fit();
     wxString ip              = m_input_ip->GetTextCtrl()->GetValue();
     wxString str_access_code = m_input_access_code->GetTextCtrl()->GetValue();
+    if (str_access_code.IsEmpty())
+        str_access_code = "88888888";
 
     // check support function
     if (!m_obj) return;
@@ -2068,7 +2073,7 @@ void InputIpAddressDialog::on_text(wxCommandEvent &evt)
     }
 
     // ORCA enabling / disabling buttons with conditions enough to change its style
-    bool valid_access_code_length = str_access_code.Length() >= 8;
+    bool valid_access_code_length = str_access_code.IsEmpty() || str_access_code.Length() >= 8;
     bool enable_btns = isIp(str_ip.ToStdString()) && valid_access_code_length && invalid_access_code;
     m_button_manual_setup->Enable(enable_btns);
     m_button_ok->Enable(enable_btns);