What is the best way to troubleshoot / diagnose slow / intermittent internet access from a desktop machine on a business LAN. I know this is a very open question but I do have some details to help:
1) I believe we are using a local proxy server
2) our DNS is handled by a dedicated "infoblox" box
3) we have a 30mbps pipe to the internet (but all sites access this from across the uk)
The internet is so slow at times it's unusable. I work in the IT department and I've never know anything like this before. What are the best methods that I can use to diagnose this issue from my workstation ? Are there any good tools out there that could help me to identify the source of the problem i.e. the bottleneck?
Thanks xperts - I need your best advice because I've logged the call with our helpdesk but to be honest with you I don't think they are interested in fixing the issue and keep fobbing me off with basic tests like they ping my workstation and then the router and say that everything is fine - I mean what the f**k !?