Urgent Network Speed Troubleshoot

My office network has become painfully sluggish and I need a specialist to jump in, trace the bottleneck and restore normal speeds. This is a pure troubleshooting engagement—no fresh installs or routine maintenance—so I’m expecting systematic diagnostics, clear root-cause identification and a fix that holds.

The issue: noticeable performance degradation that shows up as slow internet speed for all users. Basic resets and router reboots have not helped, so I suspect something deeper (mis-configured switch, bandwidth hog, firmware bug, or similar).

Here’s what I need from you:
• Remote or on-site diagnostics using your preferred tools (Wireshark, NetFlow analyzers, SNMP monitoring, etc.)
• Actionable remediation—configuration tweaks, hardware recommendations, or software updates—implemented and tested while you’re on the call.
• A brief hand-over report summarising findings, steps taken, and any preventive advice.

Success is simple: once you’re done, typical download and browsing speeds return to the normal baseline, with no recurring slow-downs over the next 24 hours.

If you’ve solved similar speed issues before and can slot this in quickly, let’s get started.