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We plugged an unmanaged switch between the firewall and the internet router. Then we plugged a PC into that switch and the ping times are around 30ms. When we move the PC back inside the network the ping times went back to 1500ms+. When we ping we would ping www.google.com. The reason why I say...

Sorry about the delay. I thought I replied to this. The pings that are slow are pings to sites on the other side of the firewall. The ISP checked and during the slow times we are only using 1/4th of our bandwidth. All pings to internal servers are normal. We put a switch between the firewall...

@ Quadratic We have 10 Cisco switches in our network (2 of which are at a different location). I was unaware there where different versions of STP so I'm not sure on that or where to look. One shows this (3560 at location 2, not main location): spanning-tree mode pvst spanning-tree loopguard...

The port-channels are either pointing to a server or a switch. There is not more than one port-channel pointing to one device and there are not multiple devices pointing to one port-channel. I have attached the log and it looks like all the ports are set for spanning...

Yes, they were on looking at it as it was slow and they said the traffic looked normal (close to when we werent slow). There was some mention that there could be a storm but I'm not sure what he meant by that (I didnt talk with him, my coworker did). That IP that was showing up a lot was my PCs...

From what I know they are experienced with it but I'm taking their word that they know what they are doing with it. I believe we still have one of the logs that I could post (I'll need to check). I am about to ask some dumb questions, so bare with me... What do you mean by "What segment did...

I did a 'show log' on the stacked switches. I have attached the what displayed from the 'show log' command. I didnt see anything that looked like duplicate mac addresses but it also didnt look like it was showing much. I have heard about the hub solution but we dont have one so we wound up...

Thanks for the quick responses. We are actually in the process of trying Wireshark which we had someone look at and found out we needed to mirror some ports on the switch so it could see all the traffic. What do you mean by "run a trace with this program"? I dont know much about Wireshark. I...

Description of the issue: My company experiences network slowness, (3000ms+ ping times). It typically happens on only Monday mornings between 8am and 11am(times are not exact). But in the last 2 weeks it seems to happen other days, even as I type this, we are experiencing 1000ms+ ping times. We...