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IP Problems

By pheonix11 ·
I am starting to have machines refuse to get an IP address eventhough they are configured for DHCP, One day they are working fine... the next day when I run winipcfg all buttons are grayed out. All I have been able to do to date is reimage such machines... Ant suggestions ?

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by Curacao_Dejavu In reply to IP Problems

From the symptons you are describing it's something local on those pc's.
Do you have a current antivirus running on the servers (dhcp, emailserver if you have one) as well as on the clients ?

Leopold

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IP Problems

by pheonix11 In reply to IP Problems

Yes we have scanned for viruses

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IP Problems

by vh_s In reply to IP Problems

what about scope ? Do you have the number of ip address greater than the number of pc ?

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IP Problems

by pheonix11 In reply to IP Problems

Scope is fine

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by eBob In reply to IP Problems

Assuming that your scope has at least enough addresses, then perhaps the DHCP server is not releasing the leases fast enough, and for some reason is not recognising the machines logging back in, and handing them back their existing leases.

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by pheonix11 In reply to IP Problems

does not seem to be the solution

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by alciur22 In reply to IP Problems

All good answers. I would check the DHCP Server scope and subnet addresses. I would restart the DHCP service on server while all other workstations are logged off. Second, on each workstation I would remove any protocols that are unecessary to your network. Meaning, remove all but TCP/IP. check to make sure that all workstations are set to obtain and reboot. Make sure you have enough IP leases available.

AL

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by pheonix11 In reply to IP Problems

have already tried this

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by @lberto In reply to IP Problems

That is a problem with your DHCP Server.

Check your scope if it has enough addresses and if it is a valid range.
After that, Log off all the workstations, stop the DHCP service on the server, take it down, start it up again, then start up the workstations. That should make it.

@lberto

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IP Problems

by pheonix11 In reply to IP Problems

did not help

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