I just recently started a new job at my company. We are experiencing problems with clients getting IP addresses from the DHCP server. On the default VLAN clients can get IP addresses no problem and in seconds. But as soon as we try and work across vlans
we are having an issue where it can take up to 15 minutes for a client machine to get an IP address. We have rebooted all of our switches and rebooted the DHCP server multiple times. We ran wireshark and it looks like we are getting quite a bit of NAKS on
the server. Right before the holidays we made a change with STP changing our layer 3 switch from RSTP to MSTP and it seemed to have fixed the issue. But now that the holidays are over and everyone is returning to work it seems like the problems have started
again. We are using 3COM and Aruba network devices. Any ideas would be appreciated. Thanks!
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