BLE connection crashing after 30s of connection

[benedito821]

Hello! I am using the example gatts_table_creat_demo of esp. The problem is that after approximately 30s the connection with board crashes and advertising is restarted. It happens with other BLE examples too. I don know if it is some expected characteristic of this algorithm . Any hints, please?

Here is what the console writes
I (113013) GATTS_TABLE_DEMO: ESP_GATTS_DISCONNECT_EVT, reason = 0x8