This router gets the basics right, but the gaps are significant. This SKU is manufactured in China. If any device on your Wi-Fi gets infected — a kid’s tablet, a smart bulb, a guest’s phone — it can reach your work laptop and banking app on the same flat network.
A C grade is not a sign-off. It means there are real, exploitable issues affecting this network every day.
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Your home network is more exposed than it should be
Your home network is more exposed than it should be. Your work laptop, banking sessions, security cameras, and smart home devices all pass through this router — a flaw here gives an attacker leverage over all of them at once.
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Foreign manufacture — FCC ban applies: This SKU is manufactured in China. New authorizations are restricted under the FCC's March 2026 rule.
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A real gap that affects every device sharing this Wi-Fi
It affects every device sharing this Wi-Fi — your work laptop, your phone, your kids' devices, your security cameras. Not the most urgent threat on the page, but a real edge an attacker can use to reach the rest.
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Historical CVEs in Asus firmware: Asus has patched multiple auth bypass and remote command execution CVEs across the RT-AX line over the past few years.
If a new vulnerability is found for your Asus RT-AX1800U, we'll email you. One email per incident. No spam.