Hi there, Today we had an incident that started with people complaining they couldn't connect to our wifi after coming back from lunch.  Long story short, clients were no longer able to get IP addresses from our DHCP server, and were experiencing thi...

Hi, I'm trying to get a replacement router (1941) with a HWIC-3G-HSPA card setup on our network to fill in for our primary connection until the outage is resolved. I've configured the router and the 3G connects. From the router, I can ping remote hos...

We recently swapped out our Cisco 2970 access switches with a 4500 series switch.  No one on the network noticed anything except for a single user running Ubuntu (95% of our users are OS X users. The only other Ubuntu user in the office is not experi...