Connection Error

Im having problems using the TikTool with a MikroTik RB751U-2HnD. It discovers the device, I save it to the database with the correct login credentials, IP address and the default Winbox port 8728.

IP ping the router, and it shows a green dot indicating its online, but when I try to connect to it, I get an error.

"Connection error. Please check address and port"

This happens with other MikroTik devices and all versions of router OS. The router OS I tried the TikTool with are:

4.15
5.16
5.25
5.6
6.0rc7
6.0rc9

Why does this happen? Can YOU please offer some assistance?

.DeeZ. about TikTool - Mobile Winbox