SERVICES — NETWORK TROUBLESHOOTING
Network Troubleshooting
Rapid diagnosis and resolution of connectivity issues, performance bottlenecks, and network incidents — on-site, remote, or both.
Our Troubleshooting Methodology
We follow a structured OSI layer approach — starting at the physical layer and working upward until the fault is isolated. No guesswork, no random reboots.
Physical
Cable integrity, transceiver health, port status, link speed, duplex mismatch, physical loop detection.
Data Link
MAC table analysis, STP state, VLAN config, trunk integrity, broadcast storms, ARP anomalies.
Network
Routing table validation, BGP session health, prefix leaks, route loops, ACL/firewall conflicts, MTU issues.
Transport
TCP retransmissions, UDP loss, session timeouts, port exhaustion, QoS queue congestion.
Session / Presentation / Application
DNS resolution, TLS handshake failures, application-layer timeouts, CDN/proxy routing issues.
We find the fault, fix it, and document exactly what happened — so it doesn’t happen again.
Common Issues We Resolve
- BGP session flaps and route advertisement issues
- Routing loops and asymmetric routing
- Intermittent packet loss and high latency
- VLAN misconfigurations and trunk failures
- STP loops and port blocking issues
- Firewall and ACL rule conflicts
- DNS resolution failures and TTL issues
- MTU/fragmentation problems across WAN links
- QoS misconfiguration and bandwidth saturation
Tools & Techniques
- Wireshark — deep packet capture and protocol analysis
- SNMP polling & trap analysis (v2c/v3)
- Traceroute / MTR — hop-by-hop latency mapping
- Syslog collection and event correlation
- NetFlow / sFlow traffic analysis
- iperf3 — throughput and jitter measurement
- Vendor CLI (Cisco IOS/NX-OS, Junos, Arista EOS, HP Comware)
- OSPF/BGP route table inspection and path manipulation
On-Site & Remote Support
👥 Remote Diagnosis
Full troubleshooting via SSH, API, and vendor management platforms. No travel time — we can start within minutes of a ticket.
🏛 On-Site Dispatch
Physical presence when needed: cable tracing, swap testing, port mirroring, and coordination with DC operations staff.
🚨 Emergency Response
24/7 emergency escalation for total connectivity loss or business-critical incidents. Guaranteed response SLA available.
Incident Report Delivered
- Timeline of the incident (detection to resolution)
- Root cause analysis — what failed and why
- Technical findings with captured evidence (logs, traces)
- Actions taken and configuration changes made
- Preventive recommendations to avoid recurrence
Why netconn for Network Troubleshooting?
⚙ Vendor-Agnostic Expertise
We work across Cisco, Juniper, Arista, HP, Fortinet, Palo Alto, and open-source stacks — no vendor allegiance, just results.
🌐 Edge Network Experience
Hands-on troubleshooting with Akamai, Cloudflare, and GTT edge networks — BGP peering, CDN routing, and transit issues included.
🚨 Emergency Response Available
For total outages and business-critical incidents, we respond 24/7. Call, ticket, or email — we triage immediately and keep you updated.
🔎 Root Cause Analysis Included
Every engagement ends with a written RCA — not just a fix, but a clear explanation of what broke and concrete recommendations to prevent it recurring.
FAQ
How does netconn diagnose network issues?
netconn follows a structured OSI layer approach (L1-L7) — starting at the physical layer (cabling, transceivers, port status) and working upward through data link, network, transport, and application layers until the fault is isolated. No guesswork, no random reboots.
Can netconn troubleshoot remotely, or do you need to be on-site?
Both. Remote diagnosis via SSH, API, and vendor management platforms can start within minutes of a ticket. On-site dispatch is available when needed for cable tracing, swap testing, port mirroring, and coordination with datacenter operations staff.
Which network vendors and equipment does netconn support?
netconn is vendor-agnostic, working across Cisco, Juniper, Arista, HP, Fortinet, Palo Alto, and open-source stacks, including vendor CLIs such as Cisco IOS/NX-OS, Junos, Arista EOS, and HP Comware.
Does netconn have experience with edge networks, ISPs, or CDN providers?
Yes — netconn has hands-on experience with Akamai, Cloudflare, and GTT edge networks, including BGP peering, CDN routing, and transit issues.
What do I receive after a network troubleshooting engagement?
An incident report including a timeline from detection to resolution, a root cause analysis (what failed and why), technical findings with captured evidence (logs, traces), actions and configuration changes made, and preventive recommendations to avoid recurrence.
Is emergency network troubleshooting available 24/7?
Yes — for total connectivity loss or business-critical incidents, netconn provides 24/7 emergency escalation with a guaranteed response SLA available.
Network Down or Degraded?
Report the issue and we’ll begin diagnosis immediately — remote or on-site.