1 | initial version |
Wireshark probably isn't the right tool for this, it's a Packet Analyser, i.e. a microscope for network traffic, it sounds as though you are looking for a broader network monitoring\statistics tool.
Regardless, whatever tool you use will need access to ALL the traffic, that means it MUST be a central point through which all traffic flows, and in your case it would be the wireless router, or a switch that mirrors traffic to a capture port inserted between the ISP modem and the wireless router. See the wiki page on Ethernet Capture setup for a fuller description of how to capture on a switched network.
You might also find tools on the wireless router provided by the vendor, or be able to install replacement firmware, e.g. OpenWRT or similar to accomplish your task.