<\/div>\n<\/aside>\n","upvoteCount":0,"datePublished":"2017-09-11T13:43:23.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/2","author":{"@type":"Person","name":"fadhilibaraka4858","url":"https://community.spiceworks.com/u/fadhilibaraka4858"}},"suggestedAnswer":[{"@type":"Answer","text":"
I am running 2012 r2 DC with DHCP on it. I have the server which I’m replicating to with a lease duration of 5 days. On Mondays they should receive new ip addresses. I have 5 or 6 computers that will not get ip addresses until I reboot the dhcp\\DC servers. I started having the problem when I changed scopes. I had a 192.168.10.0 scope but it was limited because I had static address blocks in the 10 network. I removed the 10 network from DHCP so that it would be solely used for static addresses and created a new scope of the 192.168.10.20 scope. It has been working for the most part. But for 6 to 8 people weekly the servers do not give them an ip address until the DCs are rebooted. I’m not sure what is happening.<\/p>\n
In the Event viewer I do see, “IP address range of scope EndUserComputers is out of IP addresses.” However when I check the leases, I have at least 100 available so I’m not sure where this message is coming from.<\/p>","upvoteCount":6,"datePublished":"2017-09-11T13:10:15.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/1","author":{"@type":"Person","name":"justinkreps","url":"https://community.spiceworks.com/u/justinkreps"}},{"@type":"Answer","text":"
If the DHCP server says that doesn’t have IP addresses to give, try to reduce the lease time but remember that doing that, can increase the traffic in your network<\/p>","upvoteCount":0,"datePublished":"2017-09-11T15:09:13.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/3","author":{"@type":"Person","name":"fabian-softwarekeep","url":"https://community.spiceworks.com/u/fabian-softwarekeep"}},{"@type":"Answer","text":"
The strange thing is that it is limited to one of the DC’s that is having the problem. When I’m in the process of rebooting the second DC then an ip address is given out from my 1st DC but I don’t see any difference between the two and plenty of ip addresses that are not in use\\on a lease. I also see that a number of the machines are using the DC that seems to have the problem giving more ip addresses out. Also when I go through the list it seems that they are replicating the leases so I’m not sure what is causing the issue.<\/p>","upvoteCount":0,"datePublished":"2017-09-11T18:08:47.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/4","author":{"@type":"Person","name":"justinkreps","url":"https://community.spiceworks.com/u/justinkreps"}},{"@type":"Answer","text":"\n\n
<\/div>\n
justinkreps:<\/div>\n
\nI am running 2012 r2 DC with DHCP on it. I have the server which I’m replicating to with a lease duration of 5 days. On Mondays they should receive new ip addresses. I have 5 or 6 computers that will not get ip addresses until I reboot the dhcp\\DC servers. I started having the problem when I changed scopes. I had a 192.168.10.0 scope but it was limited because I had static address blocks in the 10 network. I removed the 10 network from DHCP so that it would be solely used for static addresses and created a new scope of the 192.168.10.20 scope. It has been working for the most part. But for 6 to 8 people weekly the servers do not give them an ip address until the DCs are rebooted. I’m not sure what is happening.<\/p>\n
In the Event viewer I do see, “IP address range of scope EndUserComputers is out of IP addresses.” However when I check the leases, I have at least 100 available so I’m not sure where this message is coming from.<\/p>\n<\/blockquote>\n<\/aside>\n
Those 6-8 people - is this the same 6-8 people that always fail? And are they on a different switch or utilizing a network route that is different from the rest of the users?<\/p>","upvoteCount":1,"datePublished":"2017-09-11T22:38:13.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/5","author":{"@type":"Person","name":"mikebarrett6","url":"https://community.spiceworks.com/u/mikebarrett6"}},{"@type":"Answer","text":"
I did this and it seems to have corrected the issue. I had a couple computers still having issues after reboot this morning. I then followed the directions and created a super scope. It seems to be working properly now. I followed the super scope recommendation.<\/p>","upvoteCount":1,"datePublished":"2017-09-12T13:41:07.000Z","url":"https://community.spiceworks.com/t/dhcp-not-giving-out-ip-addresses/605060/6","author":{"@type":"Person","name":"justinkreps","url":"https://community.spiceworks.com/u/justinkreps"}}]}}
I am running 2012 r2 DC with DHCP on it. I have the server which I’m replicating to with a lease duration of 5 days. On Mondays they should receive new ip addresses. I have 5 or 6 computers that will not get ip addresses until I reboot the dhcp\DC servers. I started having the problem when I changed scopes. I had a 192.168.10.0 scope but it was limited because I had static address blocks in the 10 network. I removed the 10 network from DHCP so that it would be solely used for static addresses and created a new scope of the 192.168.10.20 scope. It has been working for the most part. But for 6 to 8 people weekly the servers do not give them an ip address until the DCs are rebooted. I’m not sure what is happening.
In the Event viewer I do see, “IP address range of scope EndUserComputers is out of IP addresses.” However when I check the leases, I have at least 100 available so I’m not sure where this message is coming from.
6 Spice ups
How many computers do you have in a your network?
I recommend creating a super scope (more than one subnet)
If the DHCP server says that doesn’t have IP addresses to give, try to reduce the lease time but remember that doing that, can increase the traffic in your network
The strange thing is that it is limited to one of the DC’s that is having the problem. When I’m in the process of rebooting the second DC then an ip address is given out from my 1st DC but I don’t see any difference between the two and plenty of ip addresses that are not in use\on a lease. I also see that a number of the machines are using the DC that seems to have the problem giving more ip addresses out. Also when I go through the list it seems that they are replicating the leases so I’m not sure what is causing the issue.
justinkreps:
I am running 2012 r2 DC with DHCP on it. I have the server which I’m replicating to with a lease duration of 5 days. On Mondays they should receive new ip addresses. I have 5 or 6 computers that will not get ip addresses until I reboot the dhcp\DC servers. I started having the problem when I changed scopes. I had a 192.168.10.0 scope but it was limited because I had static address blocks in the 10 network. I removed the 10 network from DHCP so that it would be solely used for static addresses and created a new scope of the 192.168.10.20 scope. It has been working for the most part. But for 6 to 8 people weekly the servers do not give them an ip address until the DCs are rebooted. I’m not sure what is happening.
In the Event viewer I do see, “IP address range of scope EndUserComputers is out of IP addresses.” However when I check the leases, I have at least 100 available so I’m not sure where this message is coming from.
Those 6-8 people - is this the same 6-8 people that always fail? And are they on a different switch or utilizing a network route that is different from the rest of the users?
1 Spice up
I did this and it seems to have corrected the issue. I had a couple computers still having issues after reboot this morning. I then followed the directions and created a super scope. It seems to be working properly now. I followed the super scope recommendation.
1 Spice up
