Cisco Meraki MR16 End-of-Life: Migrate to Catalyst CW9164I

The Cisco Meraki MR16 (PID MR16-HW) was one of the first cloud-managed access points many organizations ever deployed. It is a 2x2:2 dual-band 802.11n radio capping out around 300 Mbps per band under ideal conditions, single-Gigabit uplink, no MU-MIMO, no OFDMA, and no support for the modern security and roaming features that current clients expect. Cisco set its End of Sale on May 9, 2016, and the Last Day of Support arrived on May 31, 2021. Every MR16 in production today is running entirely outside its support lifecycle. The practical successor for an indoor, high-performance refresh is the Cisco Catalyst CW9164I (CW9164I-MR), a tri-radio Wi-Fi 6E access point that you can run on the same Meraki dashboard you already know.

What the MR16 milestone dates actually mean for you

End-of-life is a sequence of dates, and each one removes a different protection. Understanding the sequence is the difference between a planned refresh and an emergency one.

• End of Sale (2016-05-09): Cisco stopped selling new MR16 hardware. Any unit available since then is refurbished or gray-market, with no manufacturer warranty path on new orders.
• Last Day of Support / LDoS (2021-05-31): the decisive date. After this, Cisco PSIRT no longer issues security fixes for the platform, Meraki firmware no longer adds features or vulnerability remediation for MR16, and TAC will not open cases or process RMA hardware replacements. The device is frozen in time.
• No software-maintenance milestone was published separately for the MR16 because, as a Meraki cloud-managed product, its firmware lifecycle is tied to the dashboard and folds into the LDoS date.

You are five-plus years past LDoS: As of mid-2026 the MR16 has been unsupported for over five years. There is no patch coming for any newly disclosed Wi-Fi or driver vulnerability, and no RMA if a unit fails. This is now an active compliance and availability risk, not a future one.

Why acting now matters: security, compliance, and operational risk

The most concrete exposure is the absence of patches. Wireless has seen serious protocol-level disclosures over the MR16's lifetime, including the KRACK WPA2 key-reinstallation class and Wi-Fi fragmentation (FragAttacks) issues. A supported AP receives firmware remediation for these; an LDoS device does not. For regulated buyers this turns into audit findings fast. CMMC and NIST SP 800-171 expect timely flaw remediation (the 3.14 control family), HIPAA Security Rule risk analysis flags unpatchable infrastructure, and PCI DSS treats unsupported systems carrying cardholder traffic as a failing control. An assessor who finds 802.11n hardware that cannot accept a patch will write it up, regardless of how well the rest of the network is run.

There is also a hard operational ceiling. The MR16 cannot do WPA3, Enhanced Open (OWE), or 802.11r/k/v fast roaming the way modern clients negotiate them. Newer laptops, phones, and medical or OT devices increasingly assume those capabilities, and a 2x2 802.11n cell becomes the bottleneck in any room with more than a handful of active clients. You can review the full lifecycle record for this unit on our MR16 end-of-life page, and browse other affected platforms on the Cisco EoL hub.

The recommended replacement: Cisco Catalyst CW9164I

The CW9164I (CW9164I-MR) is a generational leap, not an incremental bump. The most important point for an existing Meraki shop: the -MR variant is built to be managed from the Meraki dashboard, so your team keeps the same cloud workflow, SSIDs, group policies, and network topology view. Catalyst Wireless hardware is convergent, so the same platform can alternatively run in Catalyst/IOS-XE mode under a 9800 controller or Catalyst Center if your strategy shifts later. You are not locked into one management plane the way the MR16 was.

What is concretely better

• Wi-Fi standard: Wi-Fi 6E (802.11ax) across three bands — 2.4 GHz, 5 GHz, and the clean 6 GHz spectrum — versus the MR16's 802.11n on two bands. Real-world per-AP throughput moves from hundreds of Mbps to multi-Gigabit.
• Radio architecture: 4x4:4 MIMO with OFDMA and uplink/downlink MU-MIMO. OFDMA lets one transmission serve many small-packet clients at once, which is exactly the dense-client scenario where the MR16's single-user 802.11n radio collapses.
• Client capacity and roaming: dramatically higher concurrent client counts per AP, plus WPA3, Enhanced Open, and modern fast-roaming so VoWiFi and roaming clinical or warehouse devices hand off cleanly.
• Uplink: multigigabit (mGig) Ethernet that negotiates 2.5G/1G, so a single Cat 6 run can carry the AP's higher throughput without re-cabling. The MR16 was capped at 1G.
• Power: the CW9164I wants 802.3at (PoE+) to light up all radios at full performance, where the MR16 ran on 802.3af. Confirm switch PoE budget during planning — this is the single most common refresh surprise.
• Built-in IoT: integrated BLE and an IoT radio for location and sensor use cases the MR16 never had.

A practical migration plan

1. Assessment and inventory

Pull a dashboard export of every MR16 (and any MR24/MR18 siblings, which share the same 2016 EoS and 2021 LDoS dates). Capture each AP's location, mounting, switch port, PoE class drawn, current channel plan, and peak client count. Run a wireless survey or at least review existing heatmaps: Wi-Fi 6E at 6 GHz propagates differently, and because the CW9164I serves far more clients per radio, many sites can refresh at a lower AP count than a like-for-like swap would suggest. Size the new design on coverage and capacity, not on the legacy AP count.

2. Licensing transition

Meraki APs require an active per-AP Enterprise (or Advanced) license tied to the dashboard org. Plan license term and quantity for the CW9164I units up front and align renewal dates so you are not tracking staggered expirations. If any sites move to Catalyst/IOS-XE management, that path uses Cisco Smart Licensing (DNA/Catalyst tiers) instead — decide the management model before you buy, because it changes the license SKU.

3. Configuration and feature parity

Because the CW9164I-MR rides the same dashboard, most SSIDs, group policies, VLAN tags, and traffic-shaping rules carry forward by adding the new APs to the existing network. Use the cutover to modernize: enable WPA3 (or WPA3 transition mode while older clients age out), turn on 6 GHz SSIDs for capable devices, and validate RADIUS/802.1X and NAC integration against the new radios before going wide.

4. Physical, power, and cabling

Verify each switch port can deliver 802.3at and that the switch's total PoE budget covers the new APs at full draw — an older access switch that comfortably fed 802.3af MR16s may run short on a PoE+ fleet. Confirm mount and ceiling-tile compatibility, plan mGig uplinks where you want headroom above 1G, and re-test cable runs that will carry 2.5G. Stage and claim the new APs in the dashboard before the truck roll so field techs just mount, cable, and confirm join.

5. Phased cutover and secure decommission

Migrate by zone, not all at once. Bring CW9164I APs online alongside the MR16s in a pilot area, validate roaming, throughput, and authentication, then sweep building by building. Once a zone is confirmed, remove the MR16s from the dashboard, factory-reset each unit to clear any stored configuration and PSK material, and dispose through an asset-recovery or e-waste process that gives you a certificate of destruction — important for federal and healthcare chain-of-custody requirements.

Procurement notes for regulated buyers

For US federal, DoD, and SLED purchases, specify TAA-compliant CW9164I units and confirm country of origin on the quote; this matters for GSA and micro-purchase (GPC) card buys. Source through an authorized Cisco partner so warranty, Meraki licensing, and support entitlement attach correctly from day one — gray-market APs frequently arrive with no valid license or support path. Wi-Fi 6E Catalyst hardware and licensing can carry real lead times, so place orders ahead of your cutover window. Browse current models and configurations in our catalog, and when you are ready for sizing and pricing, get a quote and our team will scope the AP count, PoE and licensing for your sites.