Ring Elite door bell (2017 edition)

Hi, Background, I have a client that is hearing impaired, he has integrated ring cameras to Phillips hue lights that flash when door bell is pressed. This process is via the IFTTT code. Most of the time it is reliable, but it would seem 1 in every 4th press the notifications to the phillips lights don't work and i'm pretty confident we dont revcieve any notifications on the phone or ipad. I have checked the network strength, i have resynced the doorbell, changed between ethernet and wifi connections, nothing so far has seemed to correct the issue. any help would be greatly appreciated.