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DHCP and RAS server problem

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10 replies

by jsong

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I have users that come to me everyday and tell me that they can't logon. What I am finding is that I have run out of available leases because my RAS server takes all of the available leases and does not release them. MS says this was fixed in SP4. I'm on SP6a, and still have a the problem. HELP???

10 replies

by markchen

There are several ways:

1. shorten the lease duration
2. manualy release the lease
3. increase the number of available addresses in DHCP

hope this helps

by aekland

Not sure because we have not run in to that problem. Some other work arounds. Give the Ras server a portion of the pool to hand out and exclude it from the DHCP. Subnet the ras server off so it hits a different scope. Upgrade to RRAS and reapply theservice pack then reboot.

by karsudha

ras server takes ip addressess from dhcp server on behalf of ras clients and allocates to clients.after the ras client is disconnected ip address will be released.

if that is not happening you can manually release ip from dhcp manager. go to active leases and you will see some ip leases with phone symbol.release the older one they will be available for clients.

otherwise construct second scope exclusively for ras clients.

hope this will help you.

by gahlad

One more thing to check

On the RAS Server only receive calls is enabled and if you must for some reason need the server to call back the client only set it up for dial out on one or two lines

All RAS clients have dial out only checked off.
Hope this helps

by jsong

addendum to the above question.

I am looking for the fix of NOT having to manually release them. Why aren't they being automatically release when the time expires? SP4 was supposed to address this.
The lease time has been shortened.

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