Connect. Secure. Manage.
Wi-Fi Roaming Fault Diagnosis
Trace dropped calls or disconnected applications during wireless roaming, checking client decisions, authentication timing and the Cisco or Meraki design.
Devices supported
across the UK
Client locations
supported
Traffic handled
at peak time
Average
response time
Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.
Wi-Fi roaming fault diagnosis examines what happens when a client moves between access points and whether the radio transition, authentication or wider network path causes the reported interruption. MCI Network Services investigates Cisco and Meraki roaming problems with representative devices and application evidence. We do not assume that a client choosing an unexpected access point is necessarily a controller fault, or that every interrupted session can be fixed by enabling a single roaming feature.
Coverage and capacity
Design Wi-Fi around the spaces, devices and traffic that depend on it.
Secure access
Align authentication, segmentation and guest access with the wider network.
Measured performance
Validate roaming, interference and user experience instead of relying on signal bars.
Define the affected movement and application
We begin with the physical route, device type and task that fails. A voice call breaking between floors, a scanner pausing in an aisle and a laptop remaining on a distant access point may have different causes. The investigation records the direction and timing of movement, whether the fault is repeatable and whether it affects every device or only a particular population.
We agree a representative test with the application owner. A successful ping during movement may be useful but does not prove that the original application has recovered. The test should capture what the user experiences and the relevant wireless events at the same time. This makes it possible to distinguish an actual service interruption from a brief network event that the application tolerates normally.
Standards & partnerships
Confidence in the team behind your network.
Cisco Partner
Cisco Meraki
Cyber Essentials
Cyber Essentials PlusMCI Network Services is operated by Proxar Ltd. Certifications apply to the certified legal entity and the scope of its certificates. View accreditation information
Inspect the radio transition
Coverage and overlapping cells are assessed along the affected route. The client needs a usable alternative access point when it decides to move. We review signal conditions, interference and radio policy without assuming that higher transmit power always improves mobility. An oversized cell can change client behaviour and make the transition occur somewhere other than the designer expected.
Client capability and software are part of the analysis. Endpoints participate in selecting access points, and different devices can make different decisions under similar conditions. We compare the affected client with a suitable control device, recording adapter and driver versions. The aim is to understand the relevant difference rather than declaring the network correct because one engineer’s laptop roams successfully.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Trace authentication and security behaviour
A transition may involve different authentication or key-handling behaviour depending on the platform, configuration and client support. We inspect the available evidence to determine whether a full exchange occurs, whether it succeeds and how long the relevant stage takes. Supported assistance features are reviewed against the actual endpoint population before recommending a change.
Security should not be weakened indiscriminately to reduce an observed delay. We examine certificates, identity-service reachability and the configured policy to identify the proper correction. Where a client cannot support the target method, that limitation is documented with an approved treatment. A temporary setting that improves one device while exposing or excluding other users is not a complete resolution.
Different environments. The same care.
Built around the work
your network supports.
Finance, banking and the wider private sector. We start with the systems and people that depend on your connections.
Finance & banking
Market-data paths, routing and provider coordination on clients’ behalf.
Financial-market services ↗Offices & multi-site teams
Reliable access between people, workplaces and business applications.
Office network design ↗Data centres & cloud
Network boundaries, workload connections and operational ownership.
Data centre networks ↗Check addressing and forwarding continuity
A successful radio transition does not guarantee that the client retains the network path its application expects. We review VLAN assignment, IP addressing, gateway location and any controller or gateway mobility arrangement. A change of policy or subnet can interrupt a session even when the device associates promptly with the next access point.
The investigation accounts for dashboard-network and controller boundaries. Supported multi-network Campus Gateway arrangements differ from unrelated networks that merely share an SSID name. We check the actual architecture instead of applying an old blanket assumption about which transitions must work. The Campus Gateway roaming design service can address a wider architectural gap where the fault is caused by an unsuitable mobility boundary.
Correlate evidence and test a specific correction
We combine client observations with access-point, controller, identity and relevant wired-network records. Targeted captures or traces may be needed, with the collection point chosen to reveal the stage under investigation. Timestamps and client identifiers are reconciled before drawing conclusions. A missing event in one tool does not automatically prove it did not occur elsewhere in the path.
The proposed change is tested along the original route with the original application. We repeat the journey where practical and check related client groups for unintended effects. Changes may concern RF design, endpoint software, authentication or forwarding, depending on the evidence. We avoid changing all of them simultaneously unless the incident and recovery plan justify it, because that would make the result difficult to explain and maintain.
Deliver a diagnosis with practical next steps
The report identifies the failing stage, the evidence supporting the conclusion and the observed result after correction. It also records any conditions that could not be reproduced or tested safely. Where a larger redesign is needed, we separate that project from the immediate mitigation so the customer understands which action restores work and which addresses the underlying limitation.
MCI provides Cisco and Meraki network services across the UK. Share the affected route, client types and application symptoms to scope a focused investigation. We can combine roaming diagnosis with wireless client compatibility testing or a survey, producing a clear explanation of the problem rather than assuming every mobility complaint requires additional access points or a new controller.
Technical references
- Roaming technologies — Cisco / Cisco Meraki
- Campus Gateway multi-network deployment — Cisco / Cisco Meraki
Talk to a specialist
What does your network need next?
Tell us what you are planning, changing or trying to improve. We will help define a practical next step and the engineering scope.
+44 203 196 6566Choose option 1
sales@proxar.co.ukUK-wide service.
Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.
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