I need to Renew DHCP License every 90 seconds or internet freezes.

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:
What value for PHY mode?
What Channel?
What RSSI?
What transmit Rate?
How many other networks do you see?

Similar Messages

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.
Any ideas on how we can avoid this procedure every few months? Thanks.

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 ?
Or are there 2 DHCP servers, or 2 servers offering DHCP services ? This doesn't have to be an issue if the ranges do not overlap, but if they do you may see what you are experiencing.
I changed my DHCP range allocation a few months ago to accomodate some new servers in the reserved range at the bottom end, so the servers could have static IP addresses (I'd only reserved 10 initially). What a nightmare with some of the DHCP Macs, most were fine that were up and running at the switch, but others that booted afterwards and those that booted into multiple OS's sometimes refused to initially pick up a new IP address from the correct range. A quick pull of the cable, to get a self-assigned IP and the put it back in seemed to work. AirPort attached devices were the hardest, my router STILL thinks my PBG4 is attached on two IP addresses (it's connected ONLY by AirPort, no Ethernet, etc), 192.168.0.12 and 192.168.0.24. 24 is the correct one but apparently there's a device called PowerBookG4.local on the .12 address. Everything works so I'll sort it at the next power-down of the networking kit in March.

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

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)

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...
Has anyone solved similar issues?

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:
- Mac Mini (Wired)
- 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.
1. I went into Preferences and selected Network
2. Set Configure IPV4 to: using DHCP with manual address
Now it helped I had my NetGear Routers "Attached devices" Page open here so I could see the address of everything else on my network (I went and switched everything on that was web connected so it would be logged in and running on the network) I looked at the last digit or 2 of every item on my network and then set my new IP address.
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
xxx.xxx.02 to xxx.xxx.0.52 (note the x's are normally your IP address numbers)
*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.

I am renewed my cc subscription yesterday, and it works fine on my main computer, But my Second computer is telling me I need to renew my subscription, But when I go to the Adobe applications manager, my subscription isn't showing. Any idea how I can acti

I renewed my cc subscription yesterday, and it works fine on my main computer, But my Second computer is telling me I need to renew my subscription, But when I go to the Adobe applications manager, my subscription isn't showing. Any idea how I can activate my subscription on a second computer?

Does your Cloud subscription properly show on your account page?
If you have more than one email, are you sure you are using the correct Adobe ID?
https://www.adobe.com/account.html for subscriptions on your Adobe page
If yes
Some general information for a Cloud subscription
Cloud programs do not use serial numbers... you log in to your paid Cloud account to download & install & activate... you MAY need to log out of the Cloud and restart your computer and log back in to the Cloud for things to work
Log out of your Cloud account... Restart your computer... Log in to your paid Cloud account
-Sign in help http://helpx.adobe.com/x-productkb/policy-pricing/account-password-sign-faq.html
-http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html
-http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
-http://helpx.adobe.com/creative-suite/kb/trial--1-launch.html
-ID help https://helpx.adobe.com/contact.html?step=ZNA_id-signing_stillNeedHelp
-http://helpx.adobe.com/creative-cloud/kb/license-this-software.html
If no
This is an open forum, not Adobe support... you need Adobe staff to help
Adobe contact information - http://helpx.adobe.com/contact.html
-Select your product and what you need help with
-Click on the blue box "Still need help? Contact us"

TS1388 After one or two websites the search "freezes". To rectify this I need to go into "Network" and press "Renew DHCP Lease" on my imac 10.6.8

After one or two websites the search "freezes". To rectify this I need to go into "Network" and press "Renew DHCP Lease" on my imac 10.6.8TS1317 - Mac OS X: Troubleshooting a cable modem, DSL, or LAN Internet connectionAny help?

Check your computers time and date are correct, and updating to your location via Apple's servers.
WiFi, Internet problems, possible solutions

How can I stop (the annoying) McAffee Antivirus from downloading every time Adobe Flash needs to upate (which lately is every second day)

How can I stop (the annoying) McAffee Antivirus from downloading every time Adobe Flash needs to upate (which lately is every second day)

don't auto update. manually update and untick mcaffee.

IPod needs to be reformated every "second use"

Hey
I am German so pleas excuse my spelling and gramma ;-(
I just reinstaled my Computer a cupple of days ago, so it´s clean, before i reinstaled it everything was working just fine.
So here is what happens, i plug in my USB conection in iPod and USB slot, it takes some time untill i get toled that my iPod needs to get reformated for use with this computer, i do reformate it, it works, i put the ~1600 i have on it, disconect it properly - and the next time i conect it we are back to waiting a while and having to reformate it...
I can´t imagin that is is healthy for the iPod to hammer it with 1600 songs every second day wen i want to put a cupple of songs or a playlist on it (aside from it being anyoing no matter how bad it is for the hardware...)
It would be great if someone could help me fix this.
I am not a profesional so it might be issues with wrong instalation of the USB ports (software wise, i did not change any hardware) but i think i got al the drivers on the computer properly.

It is telling me that i need to reformate it for use on this computer so i am pritty darn shure i can´t just put the files on it like i would wen it would work like it suposed to work (and did work sinc i bought it in september)
Again. brok down so everyone hopfully gets what i am fighting with
1. I conect the iPod
2. the i pod tells me it needs to be reformated for use on this computer.
3. i reformate it.
4. it works just fine, i can put all the songs on it like i should be able to.
5. the next time i conect my iPod to the VERY SAME computer there is minutes of it only being the USB harddrive, than i get a mesage that i need to reformate it for use on this computer (wich, yes, like formating usualy dos, deletes all files)
help would be awsome becaus after 3 days of this i feel like having a creative jukebox would be better, and that should be telling you something sigh

Hello, I have a problem on my iPhone every second turn on and off I mean it shows the apple and off and again shows the apple icon and off and tried to Restore and it hangs on my iPhone and then waits Error 3004 Please I need help please!

Hello, I have a problem on my iPhone every second turn on and off I mean it shows the apple and off and again shows the apple icon and off and tried to Restore and it hangs on my iPhone and then waits Error 3004 Please I need help please!

Resolve communication issues
Related errors: 17, 1004, 1013, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, or 3200.
These alerts refer to gs.apple.com, say "There was a problem downloading the software," or say the "device isn't eligible for the requested build."
I would guess your iphone has been hacked ( jailbroken ) ring any bells ?

HELP !!! I need a Premises Access License !!!

Greetings,
I live in Covina, CA 91723 and I need to find somewhere a Premises Access License (PAL) and i can not find it anywhere on the Verizon Website!!
HELP!!
and thanks in advance!!

I think this forum, should have a new Category labelled as:
Newbies FAQs
It's the just word that pops out of my head, there should be a better one.
And post this kind of question or information on that category.
Every second counts..make use of it. Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.

Licenses and second NTP servers

I know that changing the first NTP server will affect the license for UCCX and CUCM. Is this true for adding or modifying the second NTP server?
I want add a second NTP server and I want to avoid re-licensing.
Thank you!

If its version 9.X or 10.X then it should not as license are tied with ELM/PLM:
Ref: https://supportforums.cisco.com/document/115166/licensing-architecture-cisco-unified-communication-manager-cucm-version-9x-faq-live#Q:_What_are_the_benefits_of_this_licensing_structure_over_the_previous_DLU_structure
In case of VMWARE, use 8 to 9 parameters to generate a license MAC. Even if you change any one of the parameters, such as NTP Address or the Time Zone, the license MAC will change. Then, you need to procure new licenses. However, with this Enterprise License Manager in place, even if you made those changes you do not have to worry about the licenses. There is a product instance that has already been added to the ELM. Even if you make any changes, it will grab the required license from ELM.
If its CUCM version 8.X then also it shouldn't technically as licensing is tied with NTP1 and NTP 2 is not mentioned:
Ref: http://docwiki.cisco.com/wiki/Licensing_Model_for_Virtualized_UC_Applications
A License MAC is in the same format as a physical MAC address, i.e. a 12 digit hexadecimal value, but it is generated by hashing the following user-configured parameters:
Time zone
NTP server 1 (or “none”)
NIC speed (or “auto”)
Hostname
IP Address (or “dhcp”)
IP Mask (or “dhcp”)
Gateway Address (or “dhcp”)
Primary DNS (or “dhcp”)
SMTP server (or “none”)
Certificate Information (Organization, Unit, Location, State, Country)
-Terry

I keep losing my Internet connection on my I mac osx 10.7.5 Wi fi and Ethernet. The only way to reconnect I'd renew dhcp but then it will disconnect again less then a minute

I keep losing my Internet on Wi fi and Ethernet, on Ethernet if I renew DHCP lease it will start again put within 20/30 seconds it disconnect again. My laptop , iPhone, iPad my other laptop all work with no problems, so it can't be the router any help please, my iMac is around 4 years old

Hi Ray, no idea what is mentioned in those other links, but...
this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.

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.
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.
1. I went into preferences and selected Network
2. Set Configure IPV4 to: using DHCP with manual address
Now it helped I had my NetGear Routers "Attached devices" Page open here so I could see the address of everything else on my network (I went and switched everything on that was web connected so it would be logged in and running on the network) I looked at the last digit or 2 of every item on my network and then set my new IP address.
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 xxx.xxx.02 to xxx.xxx.0.52 (note the x's are normally your IP address numbers)
*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)
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.
This is probably not the ideal way to fix this issue, but so far it is working, hopefully someone with quality networking experience can chime in with a more permanent solution.

I need to Renew DHCP License every 90 seconds or internet freezes.

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