Advertising Stops after 1 Connection

[neo_here]

Hi, I had a project which was configured with upto 5 simultaneous connections. 

Recently moved from NCS 2.4.1 to 2.6.1 and now the advertising stops after one connection.

I am using the zephyr host and have these options selected in both prj.conf and hci_rpmsg.conf

CONFIG_BT_MAX_CONN=5

CONFIG_BT_MAX_PAIRED=5

ADV parameters below

#define BT_ADV_PARAMETERS               BT_LE_ADV_PARAM( \
        BT_LE_ADV_OPT_CONNECTABLE,                       \
        BT_ADV_INT_MIN,                                  \
        BT_ADV_INT_MAX,                                  \
        NULL)

[neo_here]

I do see this warning come up when a device connects

<wrn> bt_hci_core: opcode 0x200a status 0x0d

Also, when I trigger an advertisement manually after a connection, I get a -12 which is an -ENOMEM

[neo_here]

I was able to fix it by renaming hci_rpmsg.conf to hci_ipc.conf.

I only figured out after scanning through nrf samples