Is the router my internet provider gave me good enough for my business?

The router your internet provider supplies is built to a price point, and its job is to make the internet work well enough that you stop calling support. For a home or a two-person office, that is often fine. A business asks more of its network than that box can deliver: coverage beyond one corner of the building, separation between your operations and your guests, protection for payment systems and customer data, and some way to see what is happening when things go wrong.

The specific gaps show up predictably. ISP gateways typically offer one flat network, so the card reader, the security cameras, the office PCs, and every customer's phone share the same space; a compromise of any one device is a path to all of them. Their Wi-Fi radios are modest and their placement is wherever the cable enters the building, which is why the back offices have no signal. There is no meaningful logging, no content filtering, and when the ISP pushes a firmware update, your settings can silently change.

The business-grade replacement is not an enterprise project: a proper firewall or gateway, business access points where coverage math says they belong, and separate networks for staff, guests, and sensitive systems. Keep the ISP box as a simple modem and let real equipment do the networking. It is one of the most common first projects a new IT provider does for a growing business, and the difference is felt immediately.