why connectivity time is not similar

[makouda]

I'm connecting to the same microcontroller with nRF Master control using the same firmware, but I noticed that the connectivity time is not similar with every connection.

no error happens on connections : the system doesn't reset

what's the cause of this connection dissimilarity

[RK]

well what's your advertising interval and what are you connecting to? If your advertising interval is long then the central looking for you may not see you for a while, it has to be listening at the exact time you're advertising. If the advertiser and scanner get 'in sync' and keep missing each other, it can take a while to connect.