ISN Free WiFi, Siyabuswa (2026)

22/10/2026

Rent and internet usually live in two separate worlds. A tenant pays late, and nothing happens to the Wi-Fi until someone chases for weeks.

We built Rent Guard for landlords who include internet in the rent.

How it works:
* You switch it on and choose a grace period of 3 or 5 days.
* On the day after rent is due, the tenant gets an SMS and their internet speed is lowered.
* If rent is still unpaid after the grace period, the connection is paused and they get a second SMS.
* You mark rent as paid, and everything comes back straight away.

It also closes the common loopholes. Signing out, clearing the browser, using a neighbour's account or a guest voucher does not bring a paused tenant back online, and the tenant only sees a simple "your internet is paused because rent has not been paid" page. Phone numbers work in South African and Namibian formats.

If you already have a system that records payments, it can connect too. The Rent Guard API lets your own software tell us who has paid:
* Every request is signed, time-limited and used only once.
* A key belongs to one landlord and can only report paid or unpaid for that landlord's own residents. It cannot read personal details or change settings.
* A request that would flag many residents as unpaid at once is held for your approval instead of cutting people off.
* Tested example code for Node.js, Python, C # and shell is in the guide, ready to copy.

Rent Guard is off by default and is part of ISN Free WiFi.

If you manage student housing, flats or rooms to rent and want internet that follows the rent, send me a message.

20/10/2026

Did you know?

With ISN Free WiFi, you don't have to use our payment account. You connect your OWN payment gateway, so guest payments for WiFi data plans and vouchers go straight into your account.

You paste in your keys from your gateway, we check that they work, and your guests can pay on your branded WiFi page. We never hold your money.

Gateways you can connect today:
* PayFast
* Paystack
* Yoco
* SnapScan
* Zapper
* DPO Pay (including Namibian dollar payments)
* 1Voucher and OTT Voucher, for guests who pay with prepaid vouchers

More gateways are on the way, so if there is one your customers love, tell us and we will look at it.

Your WiFi, your brand, your payments.

15/10/2026

Two things make public WiFi feel bad, and they are not the same thing.

1. One person takes all the speed. This is a sharing problem.
2. Calls stutter while someone else downloads. This is a delay problem. Even with plenty of speed, the connection feels laggy.

ISN Free WiFi has a separate setting for each.

Fair Share bandwidth
This decides who gets how much. Once two or more guests are connected to a router, its real capacity is divided evenly among whoever is online right now, and it is recalculated about once a minute. With two guests on, each can use roughly half the line. When a tenth guest joins, it re-splits into ten shares automatically.

It only ever pulls a speed down toward the fair share. It never lifts anyone above what their plan allows, and guests who are uncapped, for example while watching an ad to unlock access, are left alone. When the router has room again, the reduction is released automatically.

Smart Queue Management (call quality)
This decides how traffic waits its turn. A big download can clog the line so everything feels slow, which is called bufferbloat. Smart Queue Management shares the connection by how much each individual connection is using, moment to moment. A voice or video call uses very little, so it keeps flowing smoothly even while someone else downloads something large. It doesn't guess which app is a call, which is why it keeps working when apps change.

The difference in one line: Fair Share is about fairness between people. Smart Queue Management is about smoothness for everyone. Together they keep a busy venue usable.

Both are set per router, from the router's own settings in the dashboard. Fair Share is off until you turn it on. For Smart Queue Management, you enter the line speed at about 90 to 95 percent of the router's measured speed. They work on OpenWRT-family routers, and on MikroTik and UniFi for the call-quality side.

14/10/2026

Not every WiFi network is there to make money. Libraries, community halls, schools, clinics and municipal hotspots offer WiFi for free, and the person looking after it still carries the cost and the risk.

That is why ISN Free WiFi comes with Opening Hours.

You set the hours for each day of the week, or mark a day as closed, and add a short message for your guests. The captive page then shows a clear "we are closed" notice with the next opening time. Closing after midnight works too, for example 18:00 to 02:00.

What it does for the person running the network:
* After hours, no new access can start. No one can sit outside the building at midnight and use up the data you pay for.
* Fewer worries about what happens on your network when nobody is there to watch it.
* It is enforced on our server, so a guest cannot get round it by editing the page.

What it does for the guests:
* Anyone already online is never cut off. What they earned or paid for runs until it ends.
* A payment already in progress is never blocked, so nobody is charged without getting access.
* If the feature ever has a fault, it fails open instead of switching the WiFi off.
It takes two minutes to set under Network, then Opening hours.

If you run free WiFi for a community and the data bill or the after-hours risk keeps you up at night, this is the setting to turn on first.

12/10/2026

Most guest WiFi projects don't fail on the WiFi. They fail on the network around it.

When one gateway serves dozens or hundreds of access points, a small hotspot setup stops being enough. Your IT team asks for central RADIUS, proper accounting and an audit trail. And RADIUS done carelessly is one of the easiest things to attack.

So we wrote down how we do it.

ISN Free WiFi now offers an enterprise secured RADIUS service, on request. We host it, we secure it, and we agree with you exactly what your network must do before a single guest connects.

What the guide covers:

A private path. Plain RADIUS never crosses a network we don't control. RadSec with mutual certificates, or an IPsec or WireGuard tunnel, plus strict IP allow-lists at two firewalls.

Layers, not hope. Unique long secrets per gateway, Message-Authenticator on every packet (the fix for the 2024 Blast-RADIUS attack), single-use guest logins, isolated and hardened servers, and tamper-resistant logs.

A clear list for the ISP. The addresses, certificates, firewall rules, accounting settings and site hardening we need from you, so go-live is not a surprise.

Honest about who it is for. It is built for large projects. For a single venue or a few routers, we do not recommend it. A simpler setup is more reliable and has less to attack, and the guide says so.

Planning a municipal, campus, estate or large ISP rollout? Message me and let's talk.

07/10/2026

What if your WiFi knew where your bus was, and what the road was doing?

We just shipped a big upgrade to Journey Presets and the Fleet Map in ISN Free WiFi. It now runs on two routing engines that back each other up: TomTom and GraphHopper.

Here is what a bus or taxi company can do with it today:

Price a whole route in minutes. Drop 6 stops on a map and get the driving time for every leg. Set the real timetable time for each stop, and the system follows the one rule every bus follows: it does not leave a stop before its timetable time.

Fare suggestions. Enter a price per km and a minimum, and every leg gets a suggested fare. You always set the final price.

Access that matches the journey. One bundle per stop, priced as a running total, with the access time worked out from the timetable. Guests see "5 h 40 min", not "5.67 hours".

Delays stop costing passengers their WiFi. If a bus is stuck in traffic, access is extended just enough to reach the passenger's stop, using the bus's live position and live traffic.

A guest sees only what they need. "Next stop: Kroonstad in about 18 min". Never a map, never a position, and only while they are actually on that bus. If someone tries to follow a bus they are not on, they see nothing and the owner is told.

A punctuality report. On-time results per stop and per weekday, and the legs that usually run slower than planned at a given hour, so the timetable can be fixed with real data.

A better Fleet Map. Street and satellite views, live traffic, road incidents like accidents and road works with proper icons, a "jump to my location" button, street names and trails for each bus.

Two engines, one result. TomTom brings live traffic. GraphHopper takes over when TomTom has no answer for a place, and the other way round. In testing on a Bloemfontein to Pretoria route, both agreed within 16% on every leg, and the system carried on when we deliberately broke one key.

Every operator uses their own keys, so your usage and your allowance stay yours.

We built it and tested it end to end on a 6-stop route. Now we want it on real roads.

Learn more: https://isnfreewifi.co.za/docs/fleet-map

If you run a fleet, a shuttle service or a venue with moving parts, I would love to hear what you would want from it.

06/10/2026

The cheapest fix for a flaky WiFi router is the one most people forget: restart it on a schedule.

Public WiFi routers run around the clock. Over weeks they slow down, drop clients or stop responding, and the usual fix is someone driving out to unplug it. If you run WiFi across a bus fleet, a mall or several venues, that adds up fast.

We built Scheduled reboot into ISN Free WiFi so a healthy router restarts itself quietly, before it becomes a problem.

How it works

* Open a router in the dashboard and pick an hour of the day
* Tick specific days for a weekly restart, for example Sunday at 3am, or leave the days empty for a daily one
* Apply it to a single router, or to a whole group of routers at once
* It uses the same restart as the manual "Restart router" button, so it behaves the way you already expect

Why it matters

*It's maintenance, not a reaction. Offline alerts tell you a router has already failed. This restarts it on purpose, before it does
* Pick the quiet hour, so guests aren't cut off at 6pm on a Friday
No site visit and no calls to a venue manager asking them to "switch it off and on"
* One thing to know: the restart lands somewhere inside the hour you choose, not at the exact minute. That is fine for routine maintenance.

If you manage WiFi at more than a handful of locations, this is a good feature to switch on once and forget.

Details: https://isnfreewifi.co.za/docs -scheduled-reboot

05/10/2026

Two ways to put partners to work on your WiFi, and they are not the same thing

Most WiFi operators hear "partner" and picture one model. At ISN Free WiFi we built two, because they solve opposite problems.

1. Revenue-Share Partners: someone hosts your router, you share the earnings

Think taxi drivers, bus operators, fleet owners and venues. A partner is assigned one or more of your routers. When ads, vouchers or data plans earn money on those routers, the partner gets an agreed percentage.

Paid for hosting the network, not for selling anything
The split is set per partner, or inherited from a group
Partners log in to see their routers, online status and earnings, day by day
Drivers can also get a simple no-login link to check their own earnings

2. Partner Voucher Reselling: someone sells your access, you manage the money

Think spaza shops, tills, kiosks and retail chains. A reseller does not host anything. They generate and sell vouchers to customers, and they earn a share on what they sell.

Prepaid mode: the reseller tops up a balance, and it is debited the moment a voucher is generated, so they can never sell what they have not paid for
Cash mode: you extend credit up to a limit, and it stops when they hit it
Every voucher keeps a locked record of its face value and share, so nobody can change the deal after the fact
Monthly statements, settlement receipts, and a POS API with safe retries for tills
The simple test

If the partner earns because the router is in their vehicle or venue, that is Revenue-Share.
If the partner earns because they sell vouchers to customers, that is Voucher Reselling.

They are separate tabs, separate billing and separate logins on purpose, so the two never get mixed up. One business can even be both.

Full guides here:
Revenue-Share Partners: isnfreewifi.co.za/docs/partner-share
Voucher Reselling: isnfreewifi.co.za/docs/partner-vouchers

Which model fits your network, and which one are you not using yet?

02/10/2026

😊

02/10/2026

Two towers, same hill, two independent paths to stay connected. That's the idea behind redundancy, and it's exactly how Multi-WAN failover works on your guest WiFi.

If a router has a backup internet connection already wired up (think fibre with an LTE line as backup), ISN Free WiFi switches guest traffic over automatically the moment the primary line goes down, and switches back the moment it recovers. No manual intervention, no guest ever notices.

It's not just "is the cable plugged in" either. On MikroTik it uses RouterOS's own gateway health checks, so it catches the far more common real failure: the line is physically connected but the ISP upstream has actually stopped responding. On OpenWRT-based routers it runs on mwan3, the standard tool for exactly this job. Either way, you get an alert the moment a failover happens, and a running history of every switch, right on your dashboard.

Downtime shouldn't mean lost revenue. With us, it doesn't have to.

Learn more: https://isnfreewifi.co.za/docs -multiwan

ISN Free WiFi

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