When the FCC said it was cracking down on WiFi routers that can operate at power levels that might cause interference, it wasn't kidding around. TP-Link has agreed to a settlement with the FCC that will have the company both keep its router power levels in check and shell out a relatively small $200,000 fine. As with Linksys, though, it's not asking TP-Link to block unofficial firmware that could break the rules. Just the opposite, in fact -- TP-Link has agreed to talk to both open source teams (think OpenWrt) and wireless chipset makers to enable third-party firmware that abides by FCC guidelines. While this isn't exactly a back-breaking penalty for TP-Link, it could serve as a warning to other router makers that might veer from the straight and narrow.