I have configured my Bluenrg2 with the help of Bluenrgsdk module with Data Length Extension of 251 bytes and ATT_MTU as 247 and I have acheived a throughput speed around 300kbps but range is the main problem,it gets disconnected if i go beyond 3meters.

[KV.271]

I am using BLE_Throughtput_Ext program from Bluenrgsdk version 3.1.0.I have also configured Tx power levels from -14dbm to 8dbm and the results are same(I can see very small variation in my distance of around 2m) as the distance increases my data rate gradually reduces from 350kbps and If it goes beyond 3m it gets disconnected.I have a doubt if we can configure physical layer to LE coded or LE 2M so I can increase my throughtput rate and also the distance. Any suggestions please !!!

[FMutt.423]

Hi, have you found a solution for you problem? I'm also struggeling with higher ranges and the same µC you are using.