Update drivers for Network Interface Card (NIC)

Some old drivers (for example, from Broadcom) do not support promiscuous mode.

This causes following issues:

  • one-way audio (when only one side of conversation is recorded)
  • no audio is recorded at all (both sides of conversation are not recorded).

Promiscuous mode is a special mode of Network Interface Card, which allows sniffering packets. MiaRec uses packet sniffing technology for recording calls.

When promiscuous mode is not supported by NIC, a call recording is not possible.

Fortunately, all network adapters that we know do support promiscuous mode.

But some old drivers have promiscuous mode disabled by default. It is necessary to update driver of NIC to the latest version, which is available on an official vendor's web-site.

It is important to download drivers directly from web-site of NIC's manufacturer (Broadcom, 3Com, Intel etc) rather than from manufacturer of computer (Dell, HP, Sony etc). Sometimes web-site of computer's manufacturer contains old drivers.