Problems with Comcast (Motorola) modem and Airport Extreme

I have a very strange problem which I have been unable to solve, nor able to find a solution on Apple Support or anywhere else by Googling it.
I switched back to Comcast/Xfinity, hooked up the Motorola surfboard SB5120 modem:
My primary Macbook Pro connects to the Internet, but (and this is bizarre!) the AirPort Extreme is flashing yellow with the errors listed as a) no Internet conncetion, and b) no DNS server
All other Wi-Fi devices are *unable* to connect to the Internet; they are connecting to the home network, but nothing else.
I did a "hard" reset of the AE, and setup the home network from scratch, same problems: one Macbook connects, nothing else does.
I have power cycled everything multiple times (even unplugging EVERY cable for 30 minutes, then reconnecting), spent the better part of 6 hours trying tor resolve this.
Any other settings to change?
In AirPort Utility colors:
Green for Internet
Flashing Yellow for AirPort Extreme (errors: a) no Internet conncetion, and b) no DNS server)
Green for AirPort Express
sub-menus:
1) Internet, set to "DHCP", nothing listed for IP Address; the Subnet Mask and Router Address have assigned numberes; the last three windows are empty.
2) Wireless, set to "WPA2 Personal"
3) Network, set to "Off (Bridge Mode)
Any solutions would be most welcomed - the idiot at Comcast was insultingly unhelpful. He said that since I was able to successfully connect to the Internet, and that the modem was successfully pinging back to Comcast, that the problem was with the AirPort Extreme.

Many thanks for your reply. I think number 3) below gets to the crux:
1) The MBP is on my network, for sure, not a neighbor's. I'm doing all of this wirelessly, though tested the modem via Ethernet to make sure the modem was working.
2) I reverted to the Verizon DSL modem, it did a handshake with the AE, and all the computers were successfully connected in seconds.
3) Network set to "Off (Bridge Mode)" is how all the computers are successfully connecting via Verizon, so what am I doing wrong when using Comcast? If I set it to "DHCP and NAT" or "DHCP only" I would have to enter a range of DHCP addresses (Comcast's *might* be 192.168.100.1, but not entirely sure (any help on that - might solve the problem?)
Extreme/Express - that was a mistake. I'm solely using an Extreme for this setup, though I also have an Express, I've temporarily taken it out of the network to try to resolve the issues.
Thanks again!

Similar Messages

Power backup for dsl modem and Airport Extreme

Does anyone here have backup power for a dsl modem and Airport Extreme that is successful? I have a name brand power backup and when the power goes off both the dsl modem and Airport Extreme remain on; however, the network connection is lost so the fact that they remain on doesn't help. I have been unable to find anything about this problem on the internet generally and consultation with a well-known squad person has not helped. Any thoughts about this will be welcome.

Yes, I agree. But since the backup power keeps the modem powered, why doesn't the dsl connection continue? The squad person I talked with told me that the speed with which the backup power units replace power during an outage is about the same across different backup brands/units (I don't recall the speed but it was in milliseconds) and should be quick enough to retain the dsl connection. Doesn't happen.

Time Warner Ubee U10C018 modem and Airport Extreme

Using the equipment stated in the subject. I connect the modem to the extreme, after a few moments I get a green light, neither my iMac nor PC laptop can connect to the internet. The ip addresses that are assigned begin with 169. even though I have the extreme setup to assign the adresses 10.0.0.199 and .200 accordingly. I've never had a problem using the extreme in the other three places I've setup this network. Normally just plug into the modem and you're good to go. I've tried researching any known problems with this particular modem and have turned up nothing useful. Just curious as to where I start to look next.

My previous response was faulty... Only one computer was getting an IP address..
Here's what really worked, with 2 macbooks and a pc connecting wirelessly to the Airport Extreme, all successfully connecting to the Internet:
1. Disconnect the ethernet cable and power off your modem (Ubee)
2. Open Airport Utility, select your router (Airport Extreme), and press 'Manual Setup'
3. Go to the 'Internet' tab, then under Internet Connection, make sure 'Connection Sharing' is set to "*Share a public IP address*"
4. Under TCP/IP, Configure IPv4 should be set to 'Using DHCP'. All other settings can remain the default. Press Update.
5. Power up your modem, wait for the Ready and Sync lights to go steady, then connect the ethernet cable from the modem to the router.
Apparently, Time Warner only assigns one IP address per device (in the case the router), it's up to the router to distribute IP addresses to its constituents. I wonder why this doesn't happen automatically... :\ Let me know how your experience pans out.
Peace
Message was edited by: orisinal

Is anyone using NETGEAR Push2TV with a MacBook Pro and AirPort Extreme and does it work well for you?

I am interested in buying a NETGEAR Push2TV display TV streamer to use with my MacBook Pro and AirPort Extreme.
I saw on the Netgear site that a Intel Wireless Display/WIFI driver software is required for PC's; do we have this software installed already on our MacBook Pro's? Is any one using this box and does it work well for you, any problems or setup issues?

trying to find out same thing , store said works with new intel processor, My mini dont finding.....

New help with my mac air and airport extreme time capsule dont know how to save to time capsule and use as a external hd

new help with my mac air and airport extreme time capsule dont know how to save to time capsule and use as a external hd would like 2 store my home videos and pictures on the time machine (ONLY) as the MAC AIR has storage space limited space please help. THANK YOU.

See the info here about sharing or using the TC for data.
Q3 http://pondini.org/TM/Time_Capsule.html
It is extremely important you realise.. the Time Capsule was never designed for this.
It is a backup target for Time Machine.. that is the software on the computer that does backups.. it has no direct connection to the Time Capsule.
It has no ability to back itself up.. unlike all other NAS in the market. It is therefore likely one day you will lose all your files unless you seriously work out how to backup.
The TC is slow to spin up the hard disk and fast to spin down. iTunes and iPhoto will continually lose connection to their respective libraries.
iPhoto in particular is easy to corrupt when you move photos over wireless into the library.. once corrupted all is corrupt. A single photo will ruin it all.. so backup is utterly essential.
Time Machine cannot do backups of network drives. ie the TC. You will need a different backup software like CCC. You will then need another target to backup to..

Please help me connect eMac, cable modem, and Airport Extreme Base Station

I connected Ethernet cord from cable modem to Airport Extreme Base Station and then another Ethernet cord from Airport Extreme Base Station to eMac, but I could not get internet access on my eMac that way. I'm only getting internet access by directly connecting eMac to cable modem. Can someone please help me with a step by step explanation of how to set these 3 machines up so that I can have internet access on both my eMac and, wirelessly, on my new MacBook. Thank you very much in advance.
eMac & MacBook Mac OS X (10.3)
eMac & MacBook Mac OS X (10.3)
eMac & MacBook Mac OS X (10.3)

jenngee, Welcome to the discussion area!
Ensure that you power off the cable modem for a minute or so when you switch it to another Ethernet device.
Ensure that you are connecting the WAN port of the AirPort Extreme base station (AEBS) to the cable modem. The eMac should connect to the LAN port.
The steps for setting this up can be found in the "Designing AirPort Networks" (direct PDF link) document. Look through that document and try to get it setup. Then return here if you have more questions. Don't forget to post what you tried and the issues you encountered.

Connecting Motorola SB6121 Cable Modem and AirPort Extreme

I moved into a new house a couple of days ago so of course the first thing that I needed to do was get the home wireless up and running. My ISP is through Comcast. I purchased my own cable modem (Motorola SB6121) instead of renting and used my own AirPort Extreme as the wireless router.
First, if you're purchasing your own cable modem, you will need to contact your ISP and provide them with the HFC MAC ID on the cable modem. Once you've gone through the motions, you will be able to connect your Mac (in my case Macbook) directly to the modem via ethernet cable and access the internet.
Issue:
When I connected the SB6121 to the AE, I could connect wirelessly to the AE, but I did not have access to the internet. So, basically the SB6121 and the AE were not talking to each other despite being physically connected via ethernet cable.
Solution:
After days of searching for online answers and forums (and trying different solutions) I was able to successfully get everything up and running. Make sure that you have 2 ethernet cables available.
Here are the steps.
I restored my AE to factory settings just to keep everything simple. Here are instructions: http://support.apple.com/kb/HT3728 Once you've restored your AE, make sure that both the AE and the cable modem are unplugged from their power sources.
Plug in the power to the SB6121.
Connect your SB6121 directly to your laptop via Ethernet cable. Test to ensure that you have internet accessibility by going to any website.
Remove the ethernet cable from your laptop and plug it into the "internet in" jack in the back of the AE.
Power up the AE.
Connect your laptop to the back of the AE using ethernet cable #2.
Launch a browser. You should now be able to successfully connect to any website.
Assuming that you reset your AE to factory settings, it should just be broadcasting the generic "Airport Extreme" SSID. Disconnect the ethernet cable and connect using wireless to the SSID. Launch a browser and you should be able to connect to the internet.
You can now use the AirPort Utility to configure the AirPort settings.
I assume that this solution would work with any of the base stations.

I was having the exact same issue tonight. Just purchased the AE Model A1408 and haven't been able to maintain an internet connection on my iMac whenever I tried hooking it up via the Airport Utility application. So after I had the SB6121 connected to the AE and the AE connected to my PC with no luck, I then went to the Network icon in System Preferences. Clicked on "Assist me...". Then clicked on "Diagnostics..." and followed the directions which basically had me first power down the SB6121 modem and power it back up. Then I powered down the AE router and powered it back up. At that point I was now getting an internet connection. I then took my ipad 2 and went to the Wi-Fi settings and noticed it was asking me to setup a network through my AE. I selected that and went through the simple steps to set up the network and password and now it all works. I am a novice so don't ask me why but I now get a green solid light on my AE. I can connect other devices wirelessly. I can still access the internet on my iMac. For whatever reason, using the Airport Utility on the iMac doesn't work in my case and using my ipad to set up the wireless network did the job.

Adding QoS with a switch between modem and Airport Extreme?

Since the Airport Extreme does not offer any QoS, is this something I can add to my network with a QoS capable unmanaged network switch such as this one - http://www.dlink.com/ca/en/home-solutions/connect/switches/dgs-105-5-port-gigabi t-ethernet-switch ?
My network would then be wired like this;
Cable Mode ---> D-Link DGS-105 --> Airport Extreme --> wired / wifi network devices
(I might add a switch after the Airport Extreme either way at some point to increase the number of wired devices)
Nothing other than the cable modem and router would be plugged into the D-Link switch... - but will this actually make a difference, will it cause any grief on my home network? Is there a better way?
If its relevent, the primary reason I'm thinking about QoS is so that video chatting, streaming (on AppleTV or computers), or online gaming isn't interrupted by other devices browsing the web, downloading, etc. I've got good bandwidth from my ISP, but in my house there are 3 Apple TV's, 4 computers, 3 iPhones, and 2 Xboxes......

Based on your goal, I would suggest that you take a look at this article. With QoS you are controlling which traffic gets priority going upstream to your ISP, not the other way around. Instead, I believe you what you really want is to implement a form of VLAN. Like QoS, Apple routers do not natively support VLANs. You would need a router, like a Cisco RVS4000 to do this. VLANs are not dependent on physical switches, although you can assign a separate VLAN segement, one to each Ethernet port of the router. You can then attach the AirPort to one of the Cisco's VLAN segments. Any device, wired or wireless, connected to the AirPort would get the same priority.

TWC Motorola SBG6580 and Airport Extreme

So Time Warner came out and installed a Motorola SBG6580 in my home (Docsis 3.0) to allow me to receive their Wideband Internet offering (50 down / 5 up) but i'm having huge problem with how it fits into my network.
I have an Airport Extreme and 2 Airport Expresses. Now the main problem is the Motorola Cable Modem is both a modem and a router. I want it to just act as a modem.
I called TWC and they told me to disable NAPT mode, which puts it into a state where it just acts as a modem. Great, that sounds good.
I went ahead and did that but when I rebooted the whole network it only allowed 1 computer to connect. None of my iPads or iPhones or Xbox could access the network anymore. (My Airport is on Firmware 7.6).
Why is only 1 computer able to access the new network? What am I missing?

Arzenal wrote:
I went ahead and (disabled NAPT mode) but when I rebooted the whole network it only allowed 1 computer to connect.
That makes perfect sense. There needs to be a router in provide "NAT" functionality to support a connection by more than one device. You seem to have an AirPort Extreme but haven't mentioned trying to connect it directly to the TW device. That's what you need to do. Further, the Extreme needs to be configured to create a wireless network.

BellSouth Alcatel DSL Modem and Airport Extreme

I have a new iMac, and BellSouth DSL Internet service (alcatel modem). I get an Internet connection when connecting the modem directly to iMac using an ethernet cable. However, when I try to configure my Airport Extreme 1 of 2 things happens: a constantly blinking amber light, or a green light. In neither instance does Airport Utility see Airport Extreme (even when the light is green). I have tried powering off and recycling both Airport Extreme and the modem, with neither solving the problem. Any thoughts?

The modem is a Speed Touch Home.
wow, I used one of those 8 years ago I did not know they still being used. If I remember correctly it did not have integrated pppoe or pptp client so it requires you to run a pppoe or pptp client on your mac. Therefore when connecting it to an apple airport basestation you have to configure the pppoe client in the base station.
so open your airport utility select your base station , choose manual setup
the click the 'internet' icon in the toolbar of the airport utility window and from the connect using drop down choose PPPoE, then configure it with your isp login details. The click the update button.

Wireless modem and airport extreme

Hi. I recently bought airport extreme with the intention of using it to provide wireless access to my external hard drive and printer.
I have a netcomm nb5plus4w modem router which is connected to my broadband and currently provides wireless internet to our laptop.
I am wanting to connect the airport extreme to this current network wirelessly. Is this possible, or will I need to purchase an ethernet cable to connect my modem to the airport extreme??
I just attempted to connect it, and then had all sorts of trouble getting my modem back running with my isp.
Please use as simple language as possible. While I am the techno chick in my marriage, I am by no means proficient in the gobbledeygook language!!!!
Cheers.
i hope I have given enough info.

I am wanting to connect the airport extreme to this current network wirelessly. Is this possible, or will I need to purchase an ethernet cable to connect my modem to the airport extreme??
Sorry, but unlike the AirPort Express Base Station (AX) or the Time Capsule (TC), you will not be able to "join" an existing wireless network with the 802.11n AirPort Extreme Base Station (AEBSn) wirelessly to share USB drives/printers.
Since the router you are trying to connect to is not another AirPort, you will have to connect the two (as you suggested) with an Ethernet cable for sharing.

Are you having problems with Windows XP Pro and Airport Utility Updates?

I was having problems with my wireless laptop setting up my Bonjour Printer. I checked to make sure I had downloaded the latest updates to Airport Utility and Bonjour. Check. After doing this I noticed I couldn't see my Airport Extreme through the Airport Utility. After much frustration and bringing my entire network crashing down around me, I got help from a knowledgeable guy from Cox Cable in San Diego. He helped me get my trusty iMac Power PC online. It saw my Airport Extreme but no answers were forthcoming in any forums about my XP issues. Here is what finally solved my problem. I uninstalled all Airport Utility and Bonjour Programs. I then went back to Airport Utility 5.3.1 for Windows. It installs Bonjour Printer services with this download. Everything is working perfectly again. I have my Canon Pixma MP500 connected to the USB port on my AEBS and Bonjour walked right through the setup process. I suggest that if this works for you, turn off all Airport Utility and AEBS firmware updates until you see that whatever issue Apple created with these updates gets fixed.

Well... it worked! :D
I'm pretty sure the extra 512 memory stick was the problem, that would explain why it was being inconsistent with its type of failures before. I'm going to reinstall it later and run memtest86 and try and see if i can get it to work at all somehow without causing problems, cuz 1.5 was already low enough...
DryHeat, yeah it was with SP2 but I got it installed now so no worries
Thanks a lot!

Printing problems with HP 1012 connected via Airport Extreme - resolved?

I originally posted on this issue in a long-running discussion on HP printer issues.
http://discussions.apple.com/message.jspa?messageID=10109788#10109788
Problem: Upgraded iMac 10.4.11 to 10.6 Following upgrade everything seemed fine except that the HP 1012 connected via Airport Extreme was not responsive. The system knew the printer was there, had installed the proper driver for it.
Intermediate troubleshooting: I tried to use Airport Utility to check the AE. It timed-out when trying to retrieve the AE setup specifications. I tried to update the firmware (7.4.1 to 7.4.2); system timed-out after a very long several minute "search for new version of the firmware."
Apparent solution: (any of the following may have made the difference - sorry not to have been more systematic)
a. I turned off AP on the iMac.
b. I unplugged the AE base station for one minute+, then re-powered it.
c. I opened my MBP with 10.5.7. Started up Airport Utility.
d. I renamed the base station. Left all other settings alone.
e. I installed the 7.4.2 firmware upgrade.
f. I ran Preference Repairs on the iMac (though I had done this right after installation of 10.6)
g. I turned on AP on the iMac.
Result: Almost immediate connection to AP, printer quickly began printing several of the test documents that must have been waiting in queue.
Too early to tell if I will have any further problems if if it permanently fixed.
Thanks to the several messages in both Printer and Network categories that suggested one or more of the above steps.
Stan

I hooked up my wife's Deskjet 5150 to my mac via USB. Since the 5150 does not have a driver from HP to work in SL. I decided to us the generic Gutenprint v5.2.3. For the heck-of-it, I picked, HP Deskjet 5550-Gutenprint v5.2.3. It prints. and the utility works, BTW, I am low on black ink.
I also tried the other printer drivers labeled "any printer name"-Gutenprint v5.2.3. and they all worked with the 5150.
So now that I know that the 5150's will work via USB with SL, I will now upgrade the other two laptops in my house to SL.
How to:
Turn printer on.
open System pref/ printer-fax/ add printer
Select hp desktop 5100
(name: -- Change name if you want - I kept " hp deskjet 5100"
Location: Your computer
Print Using: open dropdown box, select printer software. Type in: " Gutenprint" or "deskjet". I picked the HP Deskjet 5550-gutenprint v5.2.3. but I do not think it matters as long as it is a -gutenprint v5.2.3 driver.
Select OK

Basic problem with connecting to disk via Airport Extreme - No Disks Found

I've a Lacie BigDisk (500GB) which connects fine via USB or firewire directly to my Macs (HFS). When I plug it into the AirPort Extreme, the Airport Utility shows the disk as connected, and I've ticked File Sharing, with "Secure Shared Disks" set to "With base station password".
The AirPort Disk Utility is set to Automatically Discover AirPort disks and to Show AirPort Disks in the menu bar. It sees the Airport Extreme, and the action is set to "Connect with Password".
When I close the AirPort Disk Utility I can see the disk icon in the top menu bar, and clicking on this provides a menu with (greyed out) "No Disks Found", and the option to "Open Airport Disk Utility..."
Any ideas - it's driving me mad!
Thanks
Andrew

I am having the same problem with a Lacie 320 GB HD as well with my AEBS. I can't get it to stay recognized in Leopard. I have gotten it to work but only for 10 minutes then I have to unplug and start over. I know that it works fine in Tiger but I am having troubles with my drive "disappearing" with Leopard. From what I can tell others have had this problem but I am not finding a solution. Some have said going back to 7.1.1 works however my AEBS is 2 months old and the oldest firmware it has in the airport utility is 7.2. I have also found old versions on the apple website most look for an intel chipset which I do not have I am running a powerbook G4, also my friend on a new MacbookPro couldn't get them to work at all. Air disk is an amazing concept when am I going to be able to use it?

Best connection with U-verse Gateway and AirPort Extreme

These past couple of weeks I've been having problems where my AirPort Extreme (connected to my U-verse Gateway) has been randomly rebooting. I had Apple exchange the entire unit along with power cables and AT&T has already switched out the Gateway and it was STILL rebooting. I finally reset both to factory settings and started fresh. I turned off the Wireless on the U-verse Gateway and the Extreme is in Bridge Mode. That is how its always been and luckily fixed the rebooting. I am now having issues with my devices losing connection. For example, on my iPad Air, it'll show it is connected to my Network, but going onto Safari and trying to load a page gives me the "Server Not Responding" error. Issues also happen on not only Apple devices, but on a Wii U where I get connection errors. I HAVE NOT had these problems on my iMac (which is wireless), just on these other devices. I have not messed around with DMZ Plus Mode or changed any settings on the Gateway other than turning off the Wireless. I think it might have something to do with IP Addresses or something, but I am really not sure. If you have this same set-up, are you having these issues or what settings do I need to change? Thank you!
U-verse Gateway Model: 3801 HGV
AirPort Extreme 5th Generation

Ok so I began by reseting both devices and that fixed the majority of the "Server Not Responding" errors. BUT now I'm getting the problem where the AirPort Extreme randomly reboots. Like all of a sudden, all my devices will be disconnected from WiFi. When I go to the router, the Amber light is blinking then goes back to green. This was the issue from the very beginning and it really is very annoying. Can anyone help? If not, I'll try to contact AppleCare and post their solution in case somebody else is having these issues.

Problems with Comcast (Motorola) modem and Airport Extreme

Similar Messages

Maybe you are looking for