Mac refusing DHCP from Netgear Router

Can anyone give me some pointers on troubleshooting why my MAC won't use DHCP wirelessly from the router ? Windows laptop all good, DHCP all good. If a assign IP manually on Mac i can connect.
I'm also having issues after restarting the MAC, i can't join internet or network it allways times out, after some fiddling & network diags it works again consistently for a while.

wrong word to use then "refusing" fails to obtain & retain a DHCP address would be more accurate.
I changed the channel last night & it made no difference, Assigning the IP statically provides me a work around but isn't ideal.
I've also tried the laptop on another netgear wireless router & it behaves as it should maybe there's something unique with the rangemax that it doesn't like as it seems fine using a DSG834GT model.
Worth mentioning that renewing IP via DHCP obviously keeps the IP previously assigned but doesn't show any subnet mask or default gateway.

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My time capsule doesnt work when its conneted direct cable modem, and it start working from netgear router

I just bought a Airport Time Capsule, time capsule is connected direct from wan to cable modem (it doesnt work). when i connect it to lan port 1, it start working. normal process i know is from cable modem to wan port. 2nd i notice, network is on bridge mode. so my question is how do i make it to work from modem to wan port.

What model is the modem? Is it a pure cable modem or a combined modem router?
This maybe important as the current model TC does have issues with some of the popular cable modems.. SB6121 or 6141 being often the ones complained about here.
If it is a pure cable modem (most will have just one ethernet port). Then power down the modem for 20min. This allows enough time for the MAC address of the first device connected to be lost at the ISP end so it is ready for a new router.
The TC must be in dhcp and nat mode.
Please factory reset the TC and start over.
The Factory Reset universal
Unplug your TC/AE. Hold in reset. and power the TC/AE back on.. all without releasing reset and keep holding in for about 10sec. The time is not important.. it is the front LED rapid flashing that indicates you are in factory mode.
Release reset.
If it doesn’t flash rapidly you have released reset at some point and try again.
Be Gentle! Feel the switch click on. It has a positive feel.. add no more pressure after that.
TC/AE will reboot after a couple of minutes with default factory settings and will wipe out previous configurations.
No files are deleted on the hard disk.. No reset of the TC deletes files.. to do that you use erase from the airport utility.
By default the TC is in router mode after a reset.
Restart the modem.
The power up the TC and run through the setup utility.
The TC should then be accepted as the main router in the network.
If this fails check the WAN ip address. If it is 10.x.x.x or some other private IP you did not turn off the cable modem for long enough.. Try again only this time leave it off longer. (Some ISP it is just 5min.. some 15.. some will require 60min or overnight).

Connecting Powerbook to Netgear Router using WEP

I am trying to set up a wireless network in my house using WEP Password protection. I have Netgear wireless router (WGR614 v5) that supports both WEP and WPA protection, but I am trying to add my dad's laptop to the network with a Netgear WG511 v1 network card, which only supports WEP protection. My PB connected fine when I had it set up with WPA, but since I switched to WEP, the Powerbook says "There was an error joining the AirPort network...". I also have one windows desktop wired to the router, as well as my PB, right now. Any suggestions

Here are a few more methods of solving this problem:
- try entering the same 13-character alphanumeric passphrase on both the Netgear router and the Mac
- try entering the same 26-digit hexadecimal passphrase on both the Netgear router and the Mac
Make sure the Netgear router is running the latest available firmware version available from Netgear's web site.

Sep 02 20:31:01    Severity:4    DHCP Client lease rejected from IPv4 router addr , MAC addr

Problem:
Time Capsule kept loosing connectivity from internet modem. ISP has no records of outages.
Logs:
Sep 02 20:31:01    Severity:4    DHCP Client lease rejected from IPv4 <router addr>, MAC <addr>
Resolution:
Make sure you TC is not connected to the same coax cable that the cable box is connected to.
Although, the system may work just fine for quite some time, eventually service will be disrupted by some device attempting to connect over and over.
For some reason, Time Capsule doesn't perform well when a device attempts to authenticate over and over, even if they device clearly isn't part of the Access Control List or even have the correct password.
So, in this case the the offending mac address was Scientific Atlanta Device, which was my cable box.
Regards!

I have seen the same issue with my iOS and Mac OS devices (iPhone and MacBook Pro). I have written my own DHCP server (http://notebook.kulchenko.com/embedded/dhcp-and-dns-servers-with-arduino) and have had troubles getting my devices to connect (Windows Vista and Ubuntu devices connect fine). I suspect that this problem happens because the DHCP Offer message is sent to a broadcast address, even though (at least in my case) the broadcast flag is off in the DHCP Discover message I see.
Unfortunately you didn't include the Discover message, so I can't tell for sure, but if it indeed has the broadcast flag set to 0, then the server should send the response message using unicast as per DHCP spec (http://www.ietf.org/rfc/rfc2131.txt, section 4.1):
If the broadcast bit is not set and 'giaddr' is zero and
   'ciaddr' is zero, then the server unicasts DHCPOFFER and DHCPACK
   messages to the client's hardware address and 'yiaddr' address.
So, it seems like in this case the server may be at fault, even though it would be nice for Mac OS to accept broadcast responses (and would solve my problem too).
Can someone confirm that Mac OS does not accept broadcast responses to DHCP Discover and DHCP Request messages? Thanks.
Paul.

Cannot see Mac Mini Server from Internet: DynDNS alias gets thru cable modem to wireless router, not to the Mac Mini. How to configure?

I want to make my Mac Mini Server (Lion) visible to the Internet from my home LAN. I have followed the Lion server install wizards and also set up a dynamic DNS at DynDNS.com.
When I enter the Internet address with the proper alias from a web browser, I get dumped into the admin screen of the Linksys wireless router WRT300N. Hint: the WRT300N provides DHCP for the LAN, not the cable modem providing DHCP. The WRT300N has DDNS service set up. NAT and RIP are disabled. The Mac Mini DHCP is reserved.
Suggestions? I could use the Motorola Surfboard SB6121 to provide DHCP but have hesitations.
Point me to the right discussion/article and get me back on track, please.

This sounds like a simple port forwarding issue, but I don't understand your LAN setup.
The WRT300N has DDNS service set up. NAT and RIP are disabled.
The chances are, you're running NAT somewhere in your network. If not the WRT then what? If it's your cable modem then you must have port forwarding configured on the cable modem, and that's where you need to focus - change the port forwarding to point to your Mac Mini's address rather than the WRT.
HOWEVER, it is far more common to have the wireless router perform NAT and DHCP, which is why I question your setup.
Not directly related, but:
The Mac Mini DHCP is reserved
Nix this. Your server should be configured manually, with a static IP address, not DHCP, even with a reservation in the DHCP server. The only advantage of DHCP is for dynamic hosts (hence the 'D' in 'DHCP') or if you expect to change your entire local subnet on any kind of frequent basis. The reality is that you can't just change the IP address of Mac OS X Server like this - there are too many dependencies, so it's better to set it manually, knowing that there's a cost (and pain) to change the server's address.

Can't get a netgear router to network my macs

I just switched from DSL to Cable and had to buy a router for the cable modem. I can't get it to configure with my Mac Pro. It worked with my Macbook Pro after some fiddeling. It's a Netgear gigabit router. My Mac's normally just hook up to the networks.
Thanks
Dan

Netgear makes it a snap to setup the first time and configure.
I also switched to cable.
the Netgear router should not make a difference, all my cable ISP wants is the modem's MAC, nothing else.
the booklet that came wtih the Netgear should tell you what to use, something like
http://www.routerlogin.net/basicsettings
you might want to post the model name / google / go to Netgear knowledge base page
My reason for the switch, my DSL ISP no longer supported Netgear ADSL modems NOR would they support a system connected to their service that was running Windows 8 (unsupported of all things) so off to cable I went. Weird to say the least.
I have 2-3 Netgear routers, too, and went with the model that seems to provide now the best wifi signal strength.

Netgear router, Google, Mac OS

I've been unable to access any Google sites since I downloaded the security update last week. I have a netgear router. It works at other access points around the community, but not mine at home. My PC works just fine however. My brother in law couldn't access google from his macbook pro when he was on my network either. I've tried to reset Safari, reset the router and checked settings for any blocking, but no luck.
Does anybody have any ideas? thanks,
macbook Mac OS X (10.4.9)

Hi
Lost track of your last post.
One possible remedy is to reapply the 10.4.9 combo update. This may remedy the problem. After the install (do not use the computer during the Installation process)/restart, "repair permissions" using Disk Utility in your Utilities folder.
Another, would be to update to 10.4.10 using System Preferences>Software Update. Same as above, i.e. "repair permissions" etc.

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I have adjusted the MTU to 1600 and all worked except after closing MTU setting reverts to default of 1500 because setting is not persistent. I am now unable to enter my password. Nothing types. Also why is setting not persistent? Is there any way to keep MTU setting at desired number or as following article outlines for OS 10.2 http://docs.info.apple.com/article.html?artnum=107474 a way to config Tiger 10.4.9?

Problem connecting wirelessly from iMac to NETGEAR router, get invalid password message with WPA and WPA-2 encryption in place but if I remove them, so no security, can connect without a problem. Help!!

Problem connecting wirelessly from iMac to NETGEAR router, get invalid password message with WPA and WPA-2 encryption in place but if I remove them, so no security, can connect without a problem. Help!!

Thank you for your suggestion but I have already had a couple of phone sessions with NETGEAR support and they don't see any problems with the router settings etc. They referred me to Apple support, who helped me discover that it is possible to communicate with the router but only if I turn off the encryption/security software, which I don't want to do. The frustrating thing is that I can connect wirelessly from a laptop running Windows 7 and two Anroid smart phones, with WPA-2 in place, without a problem. Do you have any other ideas?

Hi, I have a power Mac G5 with an airport card and I am having a hard time connecting to my regular NETGEAR router. Any help, Hi, I have a power Mac G5 with an airport card and I am having a hard time connecting to my regular NETGEAR router.PLs help

Hi, I have a power Mac G5 with an airport card, MAc OS X 10.5.8, Wireless card is Airport Extreme ( 0x14E4,0x4E ) and I am having a hard time connecting to my regular NETGEAR router. PLS Help,
Thanks,
Mishcadola

I spent 2750 $ for my 24" iMac (price for my region)...
And the perfect world of Steve Jobs still close, but never we've been in there!

How can i get the MAC of the users from my router?

Hi I need to get the MAC of the users from my router, but without go its web page. I have to make a program to get that list since a computer desktop wich will be periodically sensing my router. I appreciate your help thanks.

Have you tried psexec? it's a command prompt utility that executes program on the remote computer.
For example: PC1 (192.168.1.2) to PC2 (192.168.1.3)
In the command prompt window on PC1, type psexec \\192.168.1.3 ipconfig /all
Then get the MAC address

Would like to print from laptop to printer at home. Printer is ethernet connected to NetGear Router

HP PAvilion dv1000, Windows XP
Would like to print from laptop to printer at home. Printer is ethernet connected to NetGear Router.
I had been able to print wirelessly from laptop to HP 7310 Officejet all-in-one, but now all I get is "document failed to print" message. I can get documents to print on this printer using my smart phone, but not the laptop.
I have used "find printer" button on print screen and can see the printer to select.
Any suggestions?
This question was solved.
View Solution.

Figured it out after looking at a few other posts...
Configured port to printer IP Address and now it is printing perfectly.
Thanks for having posts out there to review.

Need help replacing a Netgear router with my old used wrt54g from another house.

I had a WRT54G at my old house that was working great. Now the renters moved out and I got the router back. I have been having some issues with the netgear router Im using now so I would like to replace it with the Linksys. How do I do this? Do I need to hit the reset button? What do I set the settings at and how do I set up security so others can't access my network.

Whoaw! Take it easy Ragnar....
It is easy to setup the router with your existing network. I'd like to know your ISP. In a way, you can have the router set up manually according to your ISP settings, whether it is cable or DSL.
For setting up the wireless to be secured, you can check this link.
for heads up! <<<call_me_jam_>>>

Setting up airport extreme to replace netgear router

Hi,
Thanks in advance for help and advice with this one. Im desperate to replace my unreliable netgear router so i bought a Apple Airport Extreme base station (Generation 6).
At the moment I have my satellite box (tooway satellite provided by europasat) plugged into my netgear router and can access the internet via the wifi. I also have my airport extreme WAN port plugged into one of the netgear router ethernet bays. So effectively I have 2 wireless networks and can connect to the internet with both.
I tried removing my netgear router from the system and plugging my satellite box directly into the airport extreme and started set up. The airport extreme sets up ok but i just get an orange light for the internet.. I have tried using static IP, DCHP etc and also changing it from off bridge mode to DCHP and DCHP and NAT but i get various errors. Its keeps asking for a DNS address but i don't know what to enter..
If i look on my router setup its currently set to get IP addresses dynamically from the ISP.
Can anyone help me set this up properly without the netgear router (which constantly resets and drops the internet connection!!)
I just need a reliable home network that can connect several macs, iPads and iPhones, PS4 etc
Happy to paypal a small contribution for anyone who can help.
Thanks,
Adam

my details were IP address 10.100.38.234
As we suspected, your satellite provider is giving you a "private" IP address, and not the "public" IP address that you should be receiving. There is nothing wrong with the Netgear router, but it sounds like you have the AirPort Extreme connected at this time.
"Off" Bridge Off would normally be the correct setting to use with your satellite "modem" since it is behaving as if it were another router.
Unfortunately, you will have to use the DHCP and NAT setting on your AirPort Extreme to compensate for the incorrect IP address assignments that your satellite service is providing to you. Since your satellite "modem" is already providing NAT service, and the AirPort Extreme is as well, you have two devices both trying to do NAT.......that is why you see the Double NAT error.
Unless you can get your satellite provider to provide you with a "public" IP address, you will have to continue to run the AirPort Extreme in the Double NAT setup and hope for the best. You might be able to get away with this error on a simple home network.
If you do not want to see the blinking amber light, open AirPort Utility and click on the AirPort Extreme. A smaller window will appear. Look for a Status setting and click on the small amber dot next to Status. Another window will appear with an option to "Ignore" the Double NAT error. That will give you a green light on the AirPort Extreme, and hopefully things will work.
Double NAT can cause a number of unpredictable things to occur on a network, but the most common is slow browsing on the Internet, and/or you may be able to get to some web pages, but not others.
Hopefully, things will work OK for you since you really will no other options to set up the AirPort Extreme correctly until you receive the correct public IP address that you deserve from your satellite provider. You might want to speak to them about this and let them know that you are on to their tricks, though.

Can I use the WNDR3800 Netgear router with OS X 10.4.11?

I just got a WNDR3800 Netgear router and I have not been able to get it to work. I have a PowerPC G5 iMac running OS 10.4.11 . The system requirements on the box includes Mac OS, no version specified. So I assumed it would run with my OS version. Am I wrong?

It should work fine with a wired connection, without complications (unless you are intentionally using special settings on the router). Make sure it is set up, as Steve mentioned, with the standard Configure Using DHCP setting in System Preferences Network pane (for Ethernet). That's the default setting, so you should not need to change anything.
Also, your cable should be at least Cat-5e quality. Cat-5 may work, but the achieved speed may suffer if the iMac and router are both capable of gigabit Ethernet. Make sure it is not a really old cable. In any case, be sure to try a different cable, in case the one you have been using is bad.
Other things to try...
In System Preferences Network pane, look at the sidebar with the list of network services. Make sure Ethernet is listed first (at the top of the list). There is a command to Set Service Order. I don't remember precisely the procedure for 10.4 (Tiger). If there is a small gear icon under the sidebar, click it (that's where the command is in the current Mac OS X). Or you may just need to drag the items on the sidebar list directly, to the order you want. After the change, click the Apply button. This setting determines the order in which network services are tried, when you startup and log in. You want Ethernet to be tried first. You may want to restart after making a change.
In the same pane, you can also try removing any network services that you do not need. Select the item and click the minus sign at the bottom of the sidebar. You can always put them back later using the plus sign.
If you keep AirPort on the list, but do not use it regularly, you can try turning it OFF when it's not being used.
If all of that fails, try setting up a new Location in System Preferences Network pane. The new location will use default settings as the starting point, so you can try setting up the Ethernet connection again, from there.

Mac refusing DHCP from Netgear Router

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