If you actually need the to downgrade or reinstall a router: Go to the MikroTik Download Archive. Search for the Long-term or Stable tree.
Move files, scripts, and firmware updates directly into the router. winbox v6 46.3 download
Are you trying to , or just doing a standard setup? If you actually need the to downgrade or
Restrict Winbox access to specific "Allowed Addresses" (your management IP). winbox v6 46.3 download
What are you trying to configure?
Real-time traffic graphs for every interface.