Engineering Knowledge Base

The UrbanX Knowledge Hub

Structured guides on fibre diagnostics, low-latency gaming, and intelligent support — written by network engineers, specific to South Africa.

135Guides
9Series
43Categories
EngineersWritten By
Guide Series

Explore by Topic

Each series covers a distinct fault domain — from physical fibre infrastructure through network performance to support processes.

FNO Troubleshooting & Fibre Diagnostics

Physical-layer fault isolation across Vumatel, Openserve, MetroFibre, and Frogfoot. ONT signal diagnostics, light-level interpretation, and escalation procedures specific to South African FNO infrastructure.

Read Overview Article18 min read
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Gaming Performance & Low Latency

Network-layer optimisation for competitive gaming. Jitter budgets, buffer bloat mitigation, QoS configuration, and route analysis between SA game servers and international endpoints.

Read Overview Article18 min read
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Gamer-Centric Support & Intelligent Diagnostics

Process-layer support intelligence. Automated diagnostic workflows, ticket escalation logic, self-service tooling, and structured troubleshooting frameworks built for technical users.

Read Overview Article16 min read
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Content Creation, Streaming & Bandwidth

Throughput-layer mastery for SA creators. Symmetrical fibre architecture, OBS bitrate calibration, NAS editing workflows, FUP navigation, and zero-latency streaming under heavy household load.

Read Overview Article14 min read
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Competitive Security, Edge Config & Continuity

Edge-layer hardening for SA gamers. CGNAT navigation, port forwarding security, DDoS mitigation, DNS optimization, Mini-UPS dimensioning, and surviving load reduction reconnect storms.

Read Overview Article16 min read
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Our Methodology

Nine layers. One methodology.

Every guide in the Knowledge Hub sits at a known layer, and each layer answers a different question. We work outward from the fibre itself — through home network, bandwidth and the network edge — to the coverage, installation and account processes around it, and finally to the person using it.

Layer 01

Physical Layer

Where fibre meets hardware

The physical layer covers everything from the fibre cable entering your premises to the ONT (Optical Network Terminal) that converts light into an Ethernet signal. Most South African fibre faults originate here — dirty connectors, damaged drop cables, or degraded optical power levels that your FNO must resolve.

70%of faults start here

What you will learn

Optical power readings (Tx/Rx dBm)
ONT status LED interpretation
FNO escalation with signal evidence
Drop cable and connector inspection
Explore FNO Troubleshooting
Layer 02

Network Layer

Where packets travel and latency lives

Once your signal is clean, performance depends on how packets traverse your home network, your ISP backbone, and international peering points. For gamers, this layer determines ping, jitter, and packet loss — the difference between a crisp 20ms connection to Johannesburg servers and an unplayable 200ms mess.

<20msachievable to JHB servers

What you will learn

Latency path analysis (traceroute)
Buffer bloat and QoS configuration
DNS optimisation for SA routing
Jitter and packet loss measurement
Explore Gaming Performance
Layer 03

Process Layer

Where troubleshooting becomes resolution

Even with the right data, getting a fault resolved depends on how you engage support. This layer covers structured escalation — logging tickets with the correct diagnostics, understanding FNO vs ISP responsibility, using self-service tools, and knowing when to push for a physical line test versus waiting for a remote fix.

3xfaster resolution with evidence

What you will learn

Structured fault ticket templates
FNO vs ISP responsibility matrix
Self-service diagnostic workflows
Escalation timing and evidence gathering
Explore Support & Diagnostics
Layer 04

Premises Layer

Where your own hardware decides the outcome

A clean line still has to cross your house. Cabling, radio bands, router silicon and heat all sit between the ONT and the device you actually play on, and every one of them can undo a perfect fibre connection. This layer covers the part of the network you own outright.

6 GHzthird band on WiFi 6E and 7

What you will learn

Cat5e, Cat6 and Cat8 cable selection
2.4GHz, 5GHz and 6GHz band planning
Mesh and access-point placement
Router CPU and thermal bottlenecks
Explore Home Network
Layer 05

Throughput Layer

Where uploads and households compete

Streaming, uploading and a house full of devices ask a different question of a line than gaming does. This layer covers upload capacity, concurrency and the shaping myths that surround them — matching an encoder bitrate to a real line, and stopping one download from taking the whole house down.

1:1upload ratio on symmetrical lines

What you will learn

Symmetrical vs asymmetrical line profiles
Encoder bitrate matched to upload
Per-device bandwidth limiting
Fair use policies and shaping myths
Explore Content Creation
Layer 06

Edge Layer

Where your network meets the public internet

The edge is the boundary your router defends. NAT type, open ports, DNS choice and power continuity all live here, and each one is a trade between reachability and exposure. This layer covers hardening that boundary without breaking the connectivity a game needs.

100.64the CGNAT range (RFC 6598)

What you will learn

CGNAT and strict NAT resolution
Safe port forwarding and UPnP risk
DNS resolver selection
Mini-UPS sizing for the ONT and router
Explore Edge Security
Layer 07

Access Layer

Before the service exists at all

Everything above assumes a working line. This layer covers how one gets built — what a coverage result actually confirms, who owns each step between the FNO and the ISP, what permissions a build needs, and what to check before the installer leaves your property.

10 stagesfrom order to service-live

What you will learn

Address-level coverage validation
FNO vs ISP installation responsibility
Wayleaves, permissions and property access
ONT placement and handover inspection
Explore Coverage & Installation
Layer 08

Service Layer

Where the account changes, not the cable

Switching provider, moving house or changing package is an administrative event on a line that already exists. This layer separates the physical connection from the contract attached to it — migrations, line releases, equipment ownership, notice periods and where a billing dispute goes next.

14 daysICASA provider-first window

What you will learn

Migration vs cancellation and re-order
Line release and blocked orders
ONT and router ownership on exit
Notice periods and billing overlap
Explore Switching & Moving
Layer 09

Human Layer

Where people, not packets, are targeted

The most damaging incidents rarely involve the network at all. A convincing message, a reused password or an exposed recovery address does the work instead. This layer covers what an ISP can and cannot see, how to recognise impersonation, and what to do in the hours after an account or dataset is compromised.

FIDO2the standard behind passkeys

What you will learn

What HTTPS and private browsing really hide
Phishing and fake support recognition
Passkeys, passwords and MFA
Account takeover and breach response
Explore Digital Safety

Need Help Now?

Use our diagnostic tools to identify faults, or contact support with a structured ticket for faster resolution.