I recently purchased a pair of EP10 plugs, the first of the pair connected successfully, the second plug has not connected.   I have gone thru all the troubleshooting which included restarting my WiFi and resetting the plug (10 second hold), I don't have VPN.  The Kasa app can detect the plug and notes it is "offline"; the problem plug is located about 8 feet from my WiFi box and there are no obstructions, it is "flashing blue and orange."
 

I have a total of 3 Kasa WiFi plugs installed and working great - the first 2 are an earlier version and have been working for over 2 years.  The 3rd plug is the EP10 and is working well for over a week.  What else can I do to get this problem EP10 to connect?

model EP10P2, Ver. 1.6