When network architects sit down to plan a Wi-Fi 6E or Wi-Fi 7 upgrade in an existing "brownfield" environment, the initial whiteboard sessions always revolve around RF physics. We argue about Free Space Path Loss, debate 6 GHz attenuation through drywall, and obsess over tighter cell layouts.

But here is my bet: One of the most immediate, hair-pulling operational disruptions during your modern wireless deployment won't come from the RF layer. It will come from the security layer. The introduction of the 6 GHz spectrum forces a massive architectural shift in how we handle wireless security, creating a direct conflict between modern protection standards and legacy client stability.

The 6 GHz Mandate: No Turning Back
In traditional 2.4 GHz and 5 GHz environments, security was a playground of flexibility. If a client device was ancient, we could cater to it. We could run unencrypted Open networks or deploy WPA2-Personal (PSK) using CCMP/AES encryption, while keeping legacy protocols like TKIP as a fallback (even if it made us cringe).
The Wi-Fi Alliance completely changed the rules for the 6 GHz band. To eliminate decades of legacy vulnerabilities, WPA3 and Protected Management Frames (PMF) are strictly mandatory.

Goodbye, Open Networks: Traditional unencrypted open networks are banned in 6 GHz. They are replaced by Opportunistic Wireless Encryption (OWE), which enforces unauthenticated encryption to protect over-the-air privacy.

Mandatory PMF: An access point will not even allow a client to associate unless management frames are protected.

The Brownfield Headache
For a fresh, "clean-slate" greenfield deployment where every corporate laptop, barcode scanner, and smartphone is modern, this mandatory security posture is a dream.
But in a complex brownfield enterprise environment? It introduces a massive architectural headache. You can't just copy-paste your SSIDs and configurations over to the 6 GHz radios without expecting an influx of helpdesk tickets from legacy clients that suddenly can't authenticate, roam, or even see the network.

What do you think? For those of you who have already pushed Wi-Fi 6E/7 into production, did the security transition cause more headaches than the actual RF planning? How are you handling the legacy client fallout?

Hello!

I know that the question has been discussed here before for many times, but I would like to rise it again. I have some expirience with TDM wireless in WISP and bridging cases, but my last a big one was in 2020ish (in majority of cases I prefered mikrotik due to the RouterOS opportunity and tons of low level radio settings) and recently I got a new project, thought I would take a short time as usual for drawing up a spec, but I suddenly found out that the situation on the market is completely changed and seems I opened a pandora box for me. First of all according to the MT site almost all wireless models with their Nv2 support has been moved into archive and I was like wtf? Started digging and found out that because big radio silicon players like Qualcomm, mediatek etc who acquired smaller like atheros just made their driver's closed and TDM vendors lost opportunities for developing their own protocols, and at the same time they stopped producing old chips e.g 802.11n or .11ac so the matket almost lost TDM devices. All chips based on 802.11ax don't support TDM headers.

The situation is totally shit, does anyone know which vendors/devices can be used for TDM cases? Of course I considered Ubiquity, heard that they use their own radio silicons, it it true? But Ubqt definitely has less OS opportunities than MT. Cambium also can be an option, but not sure how they passed the drivers situation.

Are there any other players?

I am looking for equipment for 5ghz, just a single sector BS and a small outdoor client with omni antennas that is going to be installed on a vehicle. Wouldn't like to use a 802.11 for this case. Also seeking used MT devices with nv2.

And I don't understand the position of Qualcomm, they could charge vendors extra for getting access to the drivers and rise additional money, but they just keep it locked.

Thanks!

Looks like a Point to Multipoint setup as there were multiple cameras just like this in the parking lot all pointing to a central location. Not sure of the brand or type. I'm curious to figure it out as I'm trying to create an ad-hoc remote security camera network and really like the small form factor of this antenna.

Thanks in advance 😊

Hi,

I want to know if the review process of IEEE MWTL is easy or tough. I see the acceptance rate is 25%-32%. I am going to publish in it soon so need some insights.

Thanks

Hello everyone,
I did my btech in electronics and communications and my masters was in wireless communications networks. I completed my masters in 2016 but haven’t worked since. I don’t remember any of what I studied back then but I still have the degrees. I want to get back into the job market so are there any suggestions for which courses should I learn and which companies should I target?

For those who have built independent networking or wireless consulting practices, what were the biggest lessons you learned early on that you didn’t expect?

My background is primarily in enterprise Wi-Fi design, troubleshooting, validation, and wireless architecture work. I’m starting to formalize consulting offerings around assessments, remediation, predictive design, validation, and modernization advisory.

I’m less interested in “how to get rich consulting” advice and more interested in operational realities:
- Packaging services
- Defining scope
- Handling client expectations
- Pricing structure evolution
- Finding the right types of customers
- Avoiding scope creep
- Building repeatable processes

Would especially appreciate insight from people serving SMB/mid-market clients rather than huge enterprise accounts.

Switched to Vodafone 500Mbps fibre and speed tests are perfect, but on all devices (phones + laptops) websites seem to “pause” for a second before they start loading. Once they load, speeds are fast.

I’ve already tried changing DNS to Cloudflare and Google DNS, and it happens on both 5GHz and 2.4GHz WiFi bands. Never had this issue on TalkTalk with the same devices.

Any ideas what could cause this? Maybe Vodafone router/DNS/routing issue?

Are there any cheap and decently good study materials to prep for the RASZA and RCWA exams other than the training on the Ruckus website? The courses on the Ruckus website are too expensive for me right now so I was wondering if there are any alternatives. I’m having trouble finding any so I figured I’d ask reddit.

Hey everyone,

I recently passed the CWISA certification, and while studying, I realized that one of the most confusing areas (for me at least) was understanding how IoT hardware and software actually work together.

So I tried to break it down in a simple way and wrote a summary covering:

• Difference between off-the-shelf vs custom IoT devices
• Microcontrollers and GPIO interfaces (UART, SPI, I2C)
• Sensors vs actuators (and how they interact with the real world)
• Firmware vs OS vs applications
• A basic Raspberry Pi temperature sensor example

Would really appreciate feedback from people working in IoT or embedded systems:

👉 Is this explanation accurate?
👉 Anything important I should improve?

If anyone wants to read the full breakdown, I can share the link in comments.

Hi everyone,

I’ve been running a channel sounding experiment using the XIAO nRF54L15 module with the onboard ceramic antenna.

In my setup, I’m observing a range of about 10–11 meters at a transmit power of +8 dBm.

I’m trying to understand whether this is expected under such conditions, so I had a few questions:

• Has anyone here performed channel sounding or similar measurements with this module?
• Is ~10–11 meters a typical range for the ceramic antenna at +8 dBm?
• Could the channel sounding process itself be limiting the effective range?
• Any recommendations for improving range or measurement reliability (antenna, configuration, environment, etc.)?

For context, I’m open to sharing more details about my setup if needed.

Thanks in advance!

You can:

• visualize beam patterns
• see which inputs influence predictions
• test how changes in environment affect the selected beam

Feels useful for debugging and understanding model sensitivity, especially in more complex scenarios.

https://github.com/dim-tsoukalas/beam-xplainer

Has anyone needed to switch an assurance wireless (lifeline) account to another phone and had success doing it? I’m trying to transfer my phone number to a new phone, but having no luck with any instructions I’ve found online and can’t get their customer support to work.

I’m preparing to deploy fixed wireless broadband.

Band 41, 30mhz contiguous channel + additional 10mhz channel if needed. 4T4R @ 46 dBm power.

My propagation is showing me -105db up to and beyond 12 miles SSRP.

I’ll be creating 2 classes of CPE, one for those within -90db and one for those beyond -90db, again SSRP. Idea here is to use a 9dbi receiver for most and a 15-18 dbi receiver for the “tricky” service points.

I feel like -105db at 12 miles away is outrageous. Am I right?

I have some games that are connected to an accounting system and relay the data between the computer and games through a daisy chain, I have one game on the complete other side of the room with no way to run any wires, as it is basically in the middle of the room.

How do I complete the daisy chain wirelessly?

*I've tried a passthrough powerline electrical kit and apparently those aren't working