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4507R+E users are unable to renew DHCP reservations

Our users are unable to renew their DHCP reservations (Virtualized Windows server) and our 4507R+E becomes inaccessible via SSH and is not pingable. Internet traffic still flows though. I recently noticed 3 ports (ESX) on our core 4507R+E were not configured for their respective VLANS. I went ahead and corrected this issue but not sure if this was related. This issue has been occurring since the end of March 2013 and repeats itself every 4-5 weeks but sometimes sooner. The only way we temporarily fix this issue is by reloading the core 4507R+E. We are currently monitoring with Solar Winds and manually checking cpu and mem with the commands listed below. If anyone has seen this issue below or have any suggestions that would be greatly appreciated.

sh process mem sorted

sh process cpu sorted

Thank You,

Doug

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