Hello, I am running bluez as a central and the peripheral sends an Exchange MTU Request: ACL Data RX: Handle 0 flags 0x02 dlen 7 ATT: Exchange MTU Request (0x02) len 2 Client RX MTU: 247 And bluez responds with not supported: ACL Data TX: Handle 0 flags 0x00 dlen 9 ATT: Error Response (0x01) len 4 Exchange MTU Request (0x02) Handle: 0x0000 Error: Request Not Supported (0x06) Is there a configuration change or otherwise I can use to enable this? Thanks in advance and please let me know if there is more information I can provide, Eric