It's not every day a humble Wi-Fi router makes an appearance in the halls of Congress. But that's exactly what happened on March 5 when Rep. Raja Krishnamoorthi, a Democrat from Illinois, held up a TP-Link router and said, “Don’t use this.” Krishnamoorthi has been urging a ban of the routers for months in response to several China-backed cyberattacks last year. Investigators at the Commerce, Defense and Justice departments all opened probes into TP-Link routers in 2024 due to ties to Chinese cyberattacks. These departments are weighing a potential ban on the sale of TP-Link routers, The Wall Street Journal…