Q: How do I update to Winbox 3.11 from an earlier version? A: You can update to Winbox 3.11 by downloading and installing the latest version from the MikroTik website.
Do Google “Winbox 3.11 download” and click the first sponsored link. Here is the only safe method. Winbox 3.11 Download
Keep Winbox 3.11 for your legacy backup routers and Winbox 4.2+ for your modern infrastructure. You can run both versions side-by-side on the same PC. Q: How do I update to Winbox 3