Lightbulbs won't connect to my new wifi

I’ve tried to erase the lightbulbs from my old WiFi connection in order to connect to my new WiFi service. The lightbulbs will begin the reset (blinking blue) but as soon as I attempt to connect to my new 2.4 WiFi I get an error message “Bluetooth disconnected” and the lightbulbs automatically default back to the last setting/color they were when they were connected to my old WiFi. I’m not sure how else to reset the bulbs at this point. 

I have other smart bulbs from Lepro LampUX that I’ve been able to successfully switch to my new WiFi but the two bulbs that use this app will not work.  

Dear User,

We sincerely apologize for any inconvenience this issue may have caused. 
Please connect the two bulbs to the old Wi-Fi and update the firmware first. You can do this by selecting "Me" and then "Firmware Update." 
After updating, please attempt to connect to the new Wi-Fi.
If the connection still fails, please check the direct message we've sent for further assistance. We look forward to your response to that message.
 
Best regards,
Lepro Customer Service Team