Skip to main content
Investors
Partners
Blog
Contact Us
Back
United States
中国
日本
Brasil
СНГ
Deutschland
España
France
United Kingdom
Mexico
VIAVI Solutions
Toggler icon
Back
United States
中国
日本
Brasil
СНГ
Deutschland
España
France
United Kingdom
Mexico
Search icon
Global Site Search
Products and Services
Close button
Lab and Manufacturing
Lab and Manufacturing
Wireless
Wireless
AI RAN Scenario Generation
Application Emulation
Automation and Orchestration
UE Emulation
Cloud UE Emulation
Core Emulation
Core Test
O-CU Simulator
O-CU Test
O-DU Test
O-RU Test
Security Validation
Test as a Service (TaaS)
Fiber
Fiber
Ethernet Test
High-Speed Networks
Optical Manufacturing Test
Compute, Storage, Transport
Compute, Storage, Transport
PCI Express
SAS and SATA
Fiber Channel, Ethernet, FCoE, NVMeoF
Protocol Analyzers
Exercisers and Generators
Jammers
Network Deployment and Maintenance
Network Deployment and Maintenance
Wireless
Wireless
Antenna Alignment and Monitoring
Asset and Data Management
Cell Site Installation and Maintenance
Cable and Antenna Analyzer
Interference Hunting
RF Analysis
Fiber
Fiber
Asset and Data Management
Attenuators
Bit Error Rate
Copper, DSL, WiFi and Broadband Test
DOCSIS Test
Essential Fiber Optic Testers
Ethernet Test
Fiber Characterization
Fiber Identifiers
Fiber Inspection and Cleaning
Fault Locators
Fiber Optic Sensing
Fiber Optic Light Sources
Fiber (cont.)
Fiber (cont.)
HFC Test
MPO Testing
Optical Multimeter
Optical Power Meters
Optical Spectrum Analyzers (OSA)
OTDR Testing
PON Testing
Remote Fiber Test and Monitoring
Virtual Test and Activation
Network and Service Assurance
Network and Service Assurance
Network Assurance
Network Assurance
AIOps
Core Network Assurance
Ethernet Assurance
RAN Assurance
Remote Fiber Test and Monitoring
Service Assurance
Service Assurance
5G Service Assurance and Analytics
AIOps
Fiber Service Assurance
HFC and Cable Service Assurance
Transport Assurance
Cloud and Automation
Cloud and Automation
Lab and Manufacturing
Lab and Manufacturing
Automation and Orchestration
Cloud UE Emulation
Core Emulation
Core Test
O-CU Simulator
O-CU Test
O-DU Test
O-RU Test
RIC Test
Security Validation
Deployment and Maintenance
Deployment and Maintenance
Asset and Data Management
Network APIs
Remote Fiber Test and Monitoring
Virtual Test and Activation
Assurance
Assurance
AIOps
Ethernet Assurance
Remote Fiber Test and Monitoring
Railway and Mission-Critical
Railway and Mission-Critical
Drive Test
ERTMS and FRMCS Monitoring
Mission Critical Assurance
Railway Cybersecurity
Enterprise Performance and Security
Enterprise Performance and Security
Performance and Threat Visibility
Performance and Threat Visibility
End-User Experience
Enriched Flow Collection
Packet Analysis
Packet Capture Collection
Packet Meta-Data Collection
Test and Certification
Test and Certification
Bit Error Rate
Ethernet Test
Fiber Identifiers
Fiber Inspection and Cleaning
Fiber Optic Sensing
MPO Testing
Optical Power Meters
Land Mobile and Military Radio
Land Mobile and Military Radio
Communications Service Monitors
Land Mobile Radio Test
Military Radio Test
Modular Instrumentation
Software Defined Radio and System Solutions
Avionics
Avionics
ADS-B Compliance
Aircraft Fuel Quantity Test Sets and Interfaces
Antenna Couplers
Distance Measuring Equipment (DME)
Fiber Optic Avionics
GPS Signal Simulators
Military Avionics
Modular Instrumentation
Navigation and Communication
Radio Altimeters (RADALT)
Radio Frequency Automatic Test Equipment (RF ATE) Systems
Tactical Air Navigation System (TACAN)
Traffic Collision Avoidance System (TCAS)
Transponder and Interrogator
Position, Navigation and Timing
Position, Navigation and Timing
GNSS Disciplined Oscillators
GNSS/GEO/LEO Grandmaster Clocks
GNSS/GEO/LEO Receiver Modules
GPS Simulator
RF Transcoder
Resilient GEO/LEO Timing Services
Custom Optics and Pigments
Custom Optics and Pigments
Custom Optics
Custom Optics
Custom Optical Filters
Light Shaping Optics
MicroNIR Spectrometers
Pigments
Pigments
Brand Protection
ChromaFlair Pigments
Security Pigments
SpectraFlair Pigments
Former Spirent Businesses
Former Spirent Businesses
800G Ethernet Testing
Automotive Ethernet Device and Network Testing
Cybersecurity Test and Validation
Ethernet and IP Testing
Network Impairment and Emulation Testing
Radio Frequency (RF) and Wi-Fi Channel Emulation
TestCenter
Time-Sensitive Networking Testing
Timing and Synchronization Testing
All Products
All Products
All Products
Products by Family
Discontinued Products
Services
Services
Instrument Care Plans
Refurbished Equipment
Repair and Calibration
System Maintenance and Contracts
Training and Certification
VIAVI Automated Lab-as-a-Service for Open RAN (VALOR)
Order Services
Solutions
Close button
Service Providers
Service Providers
Wireless
Wireless
5G Solutions
5G Security
5G Synchronization
6G Forward
AIOps
Automated Lab-as-a-Service for Open RAN
Cell Site Installation
Cloud-Based Testing
Interference Hunting
MU-MIMO Test
Network Digital Twin
Non-Terrestrial Networks
Open RAN
Private 5G
RAN Intelligence Solutions
Wireline
Wireline
AIOps
DWDM
Ethernet Service Activation Test
Fiber Construction
Fiber Monitoring
Fiber Network Solutions
Fiber Sensing
FTTx
HFC Network Test
MPO Connector Testing
Passive Optical Network (PON)
Rural Broadband
Test Process Automation (TPA)
Transport Network Operations
Cloud
Cloud
Hyperscale
Data Center Interconnect
MPO Connector Testing
Tier 1 (Basic) Fiber Optic Certification
Tier 2 (Extended) Fiber Optic Certification
Network Equipment Manufacturers
Network Equipment Manufacturers
Wireless
Wireless
5G Security
5G Network Equipment Manufacturers
6G Forward
Analytics Enablement
Cloud-Based Testing
Non-Terrestrial Networks
Open RAN Security Test
Private 5G
Wireline
Wireline
Coherent Optics Testing
Field Deployment
Scalable Manufacturing
Technology and Service Introduction
Test and Development
Global System Integrators
Global System Integrators
AIOps
Fiber Sensing
Open RAN
Private 5G
Public Safety
Solutions for Operations Managers
Test Process Automation (TPA)
Threat Forensics and Remediation
Security
Security
Lab Testing for Security
Lab Testing for Security
Open RAN Security Test
Open RAN Security and Firewall Test
Network Security
Network Security
Quantum-Safe Technology
Threat Forensics and Remediation
Physical Security
Physical Security
Fiber Sensing
Government, Aerospace and Defense
Government, Aerospace and Defense
Military
Military
Electromagnetic Warfare
Field Test
Military Aviation Testing
Payload & Device Optical Elements
Radar
Research, Development and Manufacturing
Secure and Reliable Communications
Spectrum Monitoring and Signal Analysis
Mission-Critical
Mission-Critical
Field Test
Private 5G
Public Safety
Secure and Reliable Communications
Aviation
Aviation
General Aviation
Enterprise and Data Center
Enterprise and Data Center
NetOps
NetOps
Cloud Monitoring
End-User Experience Monitoring
Integrations and Partner Ecosystem
Network Performance Monitoring
Private 5G
Unified Communications
SecOps
SecOps
Integrations and Partner Ecosystem
Threat Forensics and Remediation
Network Technicians
Network Technicians
Cloud Workflow Management
Data Center Interconnect
Ethernet Service Activation Test
Fiber and Copper Test and Certification
MPO Connector Testing
Tier 1 (Basic) Fiber Optic Certification
Tier 2 (Extended) Fiber Optic Certification
WAN Performance Testing
Infrastructure and Utilities
Infrastructure and Utilities
Critical Infrastructure
Critical Infrastructure
Fiber Monitoring
Fiber Sensing
Electric
Electric
Electric Power Operators
Fiber Monitoring
Fiber Sensing
Oil-Gas-Water
Oil-Gas-Water
Fiber Monitoring
Fiber Sensing
Contractors and Integrators
Contractors and Integrators
Cell Site Installation and Commissioning
Data Center Contractor Solutions
Fiber and Copper Test and Certification
Residential Broadband Services Installation
Solutions for Field Technicians
Solutions for Installers
Solutions for Operations Managers
Test Process Automation (TPA)
Custom Optics and Pigments
Custom Optics and Pigments
3D Sensing
Anti-Counterfeiting
Automotive
Biomedical Applications
Consumer Electronics
Custom Color Solutions
Government and Aerospace
Industrial
NIR Spectroscopy
Spectral Sensing
Former Spirent Businesses
Former Spirent Businesses
AI Data Center Networking Test
Automotive Testing
Harden Security Defenses
High-Speed Ethernet Testing
SD-WAN/SASE Test and Assurance
How to Buy
Request a Quote
Request a Demo
Check Order Status
Contact Us
Equipment Rental
Financing Options
How to Order Products
How to Order Services
Locate a Partner
Refurbished Equipment
Resources
Close button
Learning Center
Learning Center
What are Cloud Solutions?
What is 5G Energy Consumption?
What is 5G Testing?
What is a Hyperscale Data Center?
What is End-User Experience Monitoring?
What is Fiber Construction?
What is Fiber Optic Sensing?
What is Fiber Testing?
What is OTDR Testing?
What is Packet Capture?
What is PCIe 6.0?
What is RF Interference?
View All Topics
Literature Library
Blog Posts
Subscription Center
Video Library
Webinars
Support
Close button
Customer Support
Customer Support
Customer Portal
Customer Service
Technical Support
Return Material Authorization (RMA)
Support Resources
Support Resources
How-To Videos
Knowledge Base
Quick Cards and Tech Tips
Software Downloads
Warranty, Quality and Compliance
Corporate
Close button
About Us
About Us
Awards and Recognition
Sustainability
Leadership
Our Locations
Together with VIAVI
Careers
Careers
Career Paths
Search and Apply
Early-Career Program
Life at VIAVI
What We Value
News and Events
News and Events
Events
In the News
News Releases
Blog Posts
Subscription Center
Partners
Partners
Locate a Partner
Partner Portal Login
Legal
Legal
Compliance
Data Privacy and Data Security
Patents
Product Environmental Compliance
Privacy Policy
Terms and Conditions
Terms of Use
Contact Us
Search icon
Home
Support
Support Resources
Knowledge Base
VIAVI TestCenter: An exception occurred during a WebClient request
Knowledge Base - FAQ
Thursday, October 16, 2025
Question:
Answer:
N/A
Back to Knowledge Base