Hi ff63,With tagged ports this won't work, because the PCs will send the traffic untagged, so it won't be placed in vlan 400. However with the latest version of your config (untagged ports) everything is correct and it should work.Did you try to renew the DHCP config on your PC after making the change from tagged to untagged ports? On windows PCs you can do it with ipconfig /release and the ipconfig /renew in CMD. If the problem persists you can try to narrow down the cause of the issue by checking if the communication between the PC and switch work if you assign a manual address to the PC?
If it fails, then you have a connectivity issue and not a configuration issue. If it is successful you can check the following:1) are all of your hosts not getting IP address, if only some of the hosts are affected you check for their similarities/differences in OS, vendor etc.2) you can also start a wireshark trace right before you trigger the DHCP process with the above mentioned commands and check on which step of the DORA process does it fail. - is the host sending a Discover message, does it receive an Offer from the 2930F switch etc.
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