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ASUS RT-AC66U B1 AC1750 Dual-Band Wi-Fi Router, AiProtection Lifetime Security by Trend Micro, AiMesh Compatible for Mesh Wi-Fi System

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  • 1GHz CPU powers dual-band 3x3 802.11ac Wi-Fi technology for speeds up to 1750Mbps and wide, responsive coverage for large homes. Coverage area - 3,000 square feet
  • Monitor and manage your network with ease from your mobile device using the intuitive ASUS Router App; Firewall: SPI intrusion detection, DoS protection
  • Effortless router setup with ASUSWRT web-based interface. OS Support - Linux, Windows 8,Windows 10,Windows 7 ,Mac OS X or higher, Windows 8.1,Windows XP
  • Integrated USB 3.0 and 2.0 ports enable printer sharing throughout your network and remote file access with AiCloud 2.0 support
  • AiProtection Powered by Trend Micro provides multi-stage protection from vulnerability detection to protecting sensitive data

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews

Learn more about the ASUS RT-AC66U B1

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Solid Router for mid-sized home/townhouse 9/13/2020 1:52:46 PM

Pros: Got this on sale, making the value/price equation even more favorable
Excellent feature set; even better when upgraded with MerlinWRT firmware
Good signal range -- enough to support 2-story 2,500 sqft townhome
Reliable operation without signal drops or restarts
USB ports (1x 2.0 & 1x 3.0) add phenomenal functionality

Cons: I feel the router was hamstrung a bit, before I loaded MerlinWRT firmware

Overall Review: I bought this router to upgrade the signal coverage in our moderate-sized townhome. The need became apparent when my spouse needed to work from home with video teleconferences, but was not getting sufficient wifi bandwidth in the home office.
The stock firmware is 'good' (not great), but this hardware also supports easy upgrading to MerlinWRT (which augments the stock firmware) or FreshTomato (which completely renovates the firmware). With a simple firmware upgrade, the powerful features of the hardware were unleashed and made this router exceed our needs for our mid-sized residence.
It is worth noting that, with a firmware upgrade, and with TWO of these routers, one can create a very powerful and feature-rich MESH home network architecture, which can feed the appetites of all the bandwidth-hungry devices in your home.
Do a little research, follow the firmware guides, and unlock a whole new portfolio of capabilities for managing your home and/or SOHO network, using VPNs, split subnets, VLAN tagging, and bandwidth management. It's a great piece of gear, when the firmware is right.

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Ownership: 1 month to 1 year
Verified Owner
1/ 5
Unreliable, random disconnects 8/31/2020 8:56:52 PM

Pros: It'll work for while, mostly, probably.

Cons: It is not reliable. Plan on turning it off and on again, or waiting it out for a reconnect every so often.

Overall Review: This router will randomly disconnect, losing the internet connection for a few minutes at a time. For a long time I thought I was having problems with Charter/Spectrum. Then I finally spent several hours with reliable internet directly connected to the cable modem. I should have paid more attention to the countless reviews indicating as such around the internet. Trying various older firmwares, Merlin, etc. did not help. Not recommended despite what the hype might say. If something isn't reliable for it's most basic task all the features aren't worth diddly squat.

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Manufacturer Response:
Dear Marc M,

We certainly understand your disappointment and the inconvenience this may have caused you. Please make sure you've installed the latest firmware for improved stability, for instruction on how to update your firmware please visit our ASUS support webpage*. If possible, please provide me any log detail regarding your current situation. You can reach me at Your case for reference is N200906870.

Thank you for choosing ASUS!

Best Regards,
ASUS Customer Loyalty – US Support
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Outstanding unit! Resolved a number of irritating issues that were occuring. 8/3/2020 11:54:11 PM

Overall Review: Would absolutely recommend this product and purchase it again.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
good 8/1/2020 10:30:34 AM

Pros: We bought one a couple months ago then had a house flood. Home owner's insurance replaced it. We ordered the exact same thing because we liked it.

Overall Review: I recommend this router

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Works well 7/11/2020 8:47:28 PM

Overall Review: This new router works well. It was easy to set up.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
SO much better than old router 7/1/2020 9:26:37 AM

Pros: Worked great OOB, range is awesome. 5G so FAST

Overall Review: Highly Recommend Gamer kids are thrilled

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Ownership: 1 day to 1 week
Verified Owner
1/ 5
Dead on Arrival 5/12/2020 8:28:01 AM

Pros: none

Cons: DOA

Overall Review: DOA

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5/ 5
Awesome Features 3/15/2020 9:00:00 PM

Overall Review: This is the Asus Wireless Dual Band Gigabit Router that makes our connection so fast. This router has cheap price and good feature

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