connection with android lost

[flynnnn]

when sniffer the black packet,the connect lost. min connection interval 200ms max interval 400ms ,slave lantency 2,timeout 5sec.anything wrong?

[Hung Bui]

@flynnnn: If possible please upload the full sniffer trace. I can see the sniffer didn't capture all the packet sent from master every connection interval, lots of packets was missing. It could be either issue with the master, or issue with sniffer (too far from master for example). Which master device did you use ? Which board did you use for peripheral ?

[flynnnn]

I think that you are right.thank you!