Cisco-2950 problems- loosing packets/very slow

Hi we have a few Cisco 2950 switches that are configured the exact same. One of them is working perfectly with very fast speeds. Everybody is happy on that switch. We have 2 other switches that loose packets when running a traceroute from any of the servers that are plugged into the switch. We thought it may be a problem with the switch, so we switched them out. Same problem. There are only about 8-10 server plugged into the problematic switches. The configuration looks the exact same as the switch that is working perfectly. We have tried changing cables, using a different switch. everything. Does anbody have any input on how we can diagnose the problem. Our customers are getting frustrated and we have done everything in our power to get this fixed. Any help is greatly appreciated.

 

 

 

 

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