Needing to Renew DHCP Lease every five minutes to stay online

I experienced ALL the networking and DNS problems since my Leopard install, but adding OpenDNS servers to my router cured the problem. For two months, anyway. Now, in the last week, I've got problems again, and now the only thing that cures the suddenly dead network connection is to simply Renew DHCP Lease. Instantly my connection works again. But I'm needing to do this LITERALLY every five or ten minutes. Once I do this, it returns me the same IP address (as my router is set to do so), and all works again. Monitoring outbound network activity, I can see continuous failed requests to resolver1.openDNS.com and resolver2.openDNS.com. Barring waiting until 10.5.2, which we all hope resolves these problems (hur hur), any ideas?

I have had wireless problems intermittently for a year, and seriously for 6 weeks. Apple denied the issue and was no help in spite of many tens of thousands of people on their own discussions complaining. I found a post suggesting a couple of things which fixed the problem. I don't know if both are necessary, but the first by itself does not solve the problem.
Lock the channel of your router to channel 1, apparently Apple and 802.11n don't play well together on higher channels. When this becomes a standard this will be resolved I hope.
Open your network preferences, select 'airport' and advanced. Delete unused networks. Select your network.
Open TCP/IP and write down all the settings, configure iPv4 manually. Enter the settings manually. Turn off IpV6.
Open DNS and write down your DNS server. Delete it and re-enter it manually.
This has worked on 2 macbooks and an iMac for the last 3 weeks with no network drops.
Joe Shea
Philadelphia

Similar Messages

  • I have to renew DHCP lease every few seconds to stay online

    I'm having trouble staying online. I can surf 2-3 pages, then it will not load the next page. I hit renew DHCP lease and the page will load but I am doing this every every 20 seconds. I spoke to my ISP (Time Warner) for almost an hour and could not solve it. They said everything was fine on their end and it sounds like a computer problem. I've used this computer and internet connection for over a year without ever renewing DHCP lease now I do it all the time. Any advice would help.

    I'm having the exact same problem. Sometime the pages will work for a while. Then the internet will start dropping out for a few days at time.
    I've reset and restarted everything, tried everything that I can think of. The only thing that seems to help is to renew the DHCP lease whenever it starts to happen. It will load one, maybe two, websites, and then the browser just says "connecting to (insert website here)"
    Please help, Next step is calling up AppleCare, which I would rather not do if I could. I'm a college student and i use my laptop to take notes during classes. (I type much faster than I can write)

  • I need to renew DHCP Licence every 20 minutes or so.  Any ideas?

    About once every few months, there is a span of a few days that I need to renew the DHCP Licence every 20 minutes or so to get onto the internet.  Then, everything works, but the DHCP error moves to another computer.  There are 5 computers at my work.  From the router, the signal goes into a gigabit switch, where it is piped into three different rooms.  In the room where we have the most problems, or we seem to as it's the main work room, the signal goes into another gigabit switch, which connects two computers and the Airport Extreme.  The DHCP error happens on the wired computers, a PowerMac G5 and a G4, and the Mac Book, connected to the Airport.  All the computers are running 10.4.11.
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    Someone correct me if I'm wrong, it's been a while since I read about it, when a device connects using DHCP to a DHCP server it first asks if it can use the IP address it used previously and the DHCP server will reply yes or no (and supply a new Ip address).
    There are a number of areas where confusion can occur, if the device ignores the new IP address from the DHCP server, or if the server (incorrectly/ says yes when it should have said no, perhaps for the wrong reasons, ie. the IP address requested is outside the range set aside for DHCP allocation. A flaky DHCP server may do this.
    Has the configuration recently been altered ? New firmware for any of the routing devices, not just the AirPort. Or the configuration altered ?
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    I need to Renew DHCP License every 90 seconds or internet freezes. Do I need a new network interface card?

    IF using WiFi, hold the Option key and click on the WiFi Icon in the MenuBar to get a display like this one:
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  • Need to renew dhcp lease often

    to use the internet (wireless network) i must renew the dhcp lease every time i click a link or open a window. ive reset internet preferences and removed filesharing software. any ideas?

    I also have the same problem and it started off small and it took me much trial and error to discover that only by renewing the DHCP lease every time I wanted to open a page could I still surf the net. My internet service provider first suggested that I try rebooting everything and I did -that worked for 5 minutes...then it was back to square one...I spoke with apple they were surprised that it was happening and gave me the option of paying for an over the phone trouble shooting diagnostic explaining that it could be the network card. For some reason last night everything worked perfectly without having to renew the lease.. and then this morning I am once again having to renew with every page. I did try an IP program called IPNETMonitorX but was quickly confused/overwhelmed with tech babble...
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  • Does anyone else have to renew their DHCP Lease every 30 seconds when using the internet?

    Everytime I want to use the internet for surfing the web or browsing iTunes etc I have to go into System Preferences and navigate through to a button that says "Renew DHCP Lease". If watching catch-up TV online I have to click this button every 30 seconds or so because the programme freezes, and if I'm surfing the web or browsing iTunes I have to click it every time I want to update the content of the page. Does anybody know what my problem might be?

    This Fix has got things working for me.
    I have reprinted this response from another thread I have made (Repost) A number of people were asking me about my fix, so I have expanded my response to hopefully offer a little more clarity.
    I was having this problem the other night after I finished doing a massive upgrade to our Home Network (New Router, Modem, Cabling, Etc)
    I had to reset my DHCP lease every few minutes, in the end I found Mac Mini's IP Address kept setting itself to other items on the Network, I have some items connected on wired (ethernet) and some were connected on WiFi (Airport Extreme) after clicking the DHCP Lease Renew the Mac Mini would grab an IP address that it thought was available but then another item on my network would "check in" then we would have a clash, The Mac Mini was grabbing what it thought was an available IP address, the DHCP Renew button was not setting the Mac Mini's IP number far enough away to stop the clash.
    I was watching the items on my Routers Attached devices screen, The Mac Mini would show up on the page with its new address (after hitting the DHCP Renewal button) then something else would check in with that exisiting IP Address, clash and the Mac Mini would need it's DHCP lease renewed again.
    My Network consists of:
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    - Acer Laptop (Wired)
    - PS3 (1) (wired)
    - Apple TV (wired)
    - Airport Extreme (wired and looking ater WiFi duties throughout the house)
    - PS3 (2) (WiFi)
    - TV (WiFi)
    - iPad (WiFi)
    - Nexus 7 (WiFi)
    - Printer (WiFi)
    I'll be the first to admit my Networking knowledge is limited (and I'm learning more all the Time) but I simply went into the preferences panel and set the IP address manually.
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    3. To ensure I wouldn't have any more clashes I set my new IP address far away from the the others* your only changing the last digit or 2 of the IP address, so in the case of my Mac Mini it went from
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    *I originally set it to xxx.xxx.09 but I since found the TV had that IP address (The one thing I forgot to check the previous night) so I this is when I decided to set it far away from the rest of the bunch by setting it to .52 (No specific reason for 52, that was just the 1st number to pop into my head)
    Now that was over a week ago and since then I have had no more issues on my Network, so far everything is running smooth and fast. (It has now been over 3 weeks since I posted this, and everything is still working perfectly, I suggested this solution to 2 friends having the same issue and it also fixed there problems as well)
    I'm not saying this is the be all and end all to the problem, there must be a more permanent solution out there, but this is working for me so far.

  • How do I fix that I constantly having to renew dhcp lease?

    I am constantly having to renew my dhcp lease.  Can anyone help resolve this issue?

    I was having this problem the other night after I finished doing a massive upgrade to our Home Network (New Router, Modem, Cabling, Etc)
    I  had to reset my DHCP lease every few minutes, in the end I found it was  the IP Address kept setting itself to other items on the Network, I  have some items coming through on wired (ethernet) and some were checking in on WiFi (Airport Extreme) the Mac Mini would grab an IP address that it thought was available and then we would have a clash.
    I was watching the items on my Routers Attached devices screen, The Mac  Mini would show up on the page with its new address (after hitting the  DHCP Renewal button) then something elese would check in with that  exisiting IP Address, clash and the Mac Mini would need the DHCP lease renewed again.
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    *I originally set it to xxx.xxx.09 but I since found the TV had that IP address (The one thing I forgot to check the previous night) so I this is when I decided to set it far away from the rest of the bunch by setting it to .52 (Note: 52 was just the 1st number to pop into my head)
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    <clip>
    Jun 15 20:42:52 oak bootpd[25930]: server starting
    Jun 15 20:42:52 oak bootpd[25930]: server name oak.xxxxxx.xxx
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    Jun 15 20:42:52 oak bootpd[25930]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 20:42:52 oak bootpd[25930]: service time 0.001069 seconds
    Jun 15 20:48:06 oak bootpd[26247]: server starting
    Jun 15 20:48:06 oak bootpd[26247]: server name oak.xxxxxx.xxx
    Jun 15 20:48:06 oak bootpd[26247]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 20:48:06 oak bootpd[26247]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 20:48:06 oak bootpd[26247]: replying to 10.0.1.40
    Jun 15 20:48:06 oak bootpd[26247]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 20:48:06 oak bootpd[26247]: service time 0.001160 seconds
    Jun 15 20:53:20 oak bootpd[26337]: server starting
    Jun 15 20:53:20 oak bootpd[26337]: server name oak.xxxxxx.xxx
    Jun 15 20:53:20 oak bootpd[26337]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 20:53:20 oak bootpd[26337]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 20:53:20 oak bootpd[26337]: replying to 10.0.1.40
    Jun 15 20:53:20 oak bootpd[26337]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 20:53:20 oak bootpd[26337]: service time 0.002328 seconds
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    Jun 15 20:58:33 oak bootpd[26473]: server name oak.xxxxxx.xxx
    Jun 15 20:58:33 oak bootpd[26473]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 20:58:33 oak bootpd[26473]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 20:58:33 oak bootpd[26473]: replying to 10.0.1.40
    Jun 15 20:58:33 oak bootpd[26473]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 20:58:33 oak bootpd[26473]: service time 0.001407 seconds
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    Jun 15 20:59:48 oak bootpd[26473]: replying to 10.0.1.40
    Jun 15 20:59:48 oak bootpd[26473]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 20:59:48 oak bootpd[26473]: service time 0.002104 seconds
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    Jun 15 21:05:02 oak bootpd[27945]: server name oak.xxxxxx.xxx
    Jun 15 21:05:02 oak bootpd[27945]: interface en0: ip 10.0.1.2 mask 255.255.255.0
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    Jun 15 21:05:02 oak bootpd[27945]: replying to 10.0.1.40
    Jun 15 21:05:02 oak bootpd[27945]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 21:05:02 oak bootpd[27945]: service time 0.004071 seconds
    Jun 15 21:10:16 oak bootpd[28211]: server starting
    Jun 15 21:10:16 oak bootpd[28211]: server name oak.xxxxxx.xxx
    Jun 15 21:10:16 oak bootpd[28211]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 21:10:16 oak bootpd[28211]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 21:10:16 oak bootpd[28211]: replying to 10.0.1.40
    Jun 15 21:10:16 oak bootpd[28211]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 21:10:16 oak bootpd[28211]: service time 0.001062 seconds
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    Jun 15 21:15:30 oak bootpd[28556]: server name xxxxxx.xxx
    Jun 15 21:15:30 oak bootpd[28556]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 21:15:30 oak bootpd[28556]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 21:15:30 oak bootpd[28556]: replying to 10.0.1.40
    Jun 15 21:15:30 oak bootpd[28556]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 21:15:30 oak bootpd[28556]: service time 0.001101 seconds
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    Jun 15 21:20:43 oak bootpd[28924]: server name oak.xxxxxx.xxx
    Jun 15 21:20:43 oak bootpd[28924]: interface en0: ip 10.0.1.2 mask 255.255.255.0
    Jun 15 21:20:43 oak bootpd[28924]: DHCP REQUEST [en0]: 1,64:b9:e8:37:e:aa
    Jun 15 21:20:43 oak bootpd[28924]: replying to 10.0.1.40
    Jun 15 21:20:43 oak bootpd[28924]: ACK sent dtiphone 10.0.1.40 pktsize 300
    Jun 15 21:20:43 oak bootpd[28924]: service time 0.001419 seconds

    This is normal functionality for bootpd. Nothing to worry about.

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    Source:        MSExchange Common
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    Event ID:      4999
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    Keywords:      Classic
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        <Task>1</Task>
        <Keywords>0x80000000000000</Keywords>
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        <Data>E12IIS</Data>
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        <Data>M.E.RpcClientAccess.Service</Data>
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    Amit,
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    Source:        MSExchange Common
    Date:          7/2/2014 6:01:36 AM
    Event ID:      4999
    Task Category: General
    Level:         Error
    Keywords:      Classic
    User:          N/A
    Computer:     computer
    Description:
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    ErrorReportingEnabled: True 
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    <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
      <System>
        <Provider Name="MSExchange Common" />
        <EventID Qualifiers="16388">4999</EventID>
        <Level>2</Level>
        <Task>1</Task>
        <Keywords>0x80000000000000</Keywords>
        <TimeCreated SystemTime="2014-07-02T13:01:36.000000000Z" />
        <EventRecordID>825358</EventRecordID>
        <Channel>Application</Channel>
        <Computer>computer</Computer>
        <Security />
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        <Data>13152</Data>
        <Data>E12</Data>
        <Data>c-RTL-AMD64</Data>
        <Data>15.00.0913.022</Data>
        <Data>w3wp#MSExchangeOWAAppPool</Data>
        <Data>M.E.Data.ApplicationLogic</Data>
        <Data>M.E.D.S.GccUtils.GetClientIPEndpointsFromHttpRequest</Data>
        <Data>System.NullReferenceException</Data>
        <Data>868</Data>
        <Data>15.00.0913.017</Data>
        <Data>True</Data>
        <Data>False</Data>
        <Data>w3wp#MSExchangeOWAAppPool</Data>
        <Data>
        </Data>
      </EventData>
    </Event>
    Going to keep an eye on it, but its not causing any issues. 
    ST

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