Giving recent user query and suggestion, 2.1.4 has been released. many thanks to all the users who has been give warm heart advice. Please check out below for details.
Details:
A couple of bug fix.
1. Faster network detection.
2 Avoid crash during network change.
3. Support Network refresh. No need to restart netcut to detect people hook/unhook up in WIFI. suit for user in public area where user keep changing.
And please see screenshot example of button from the user interface here (How to Refresh network): 
Download last version here http://www.arcai.com/arcai-netcut-faq/free-download-netcut.html
