Mac peripherals : Airport Extreme suddenly won't connect to internet
Airport Extreme suddenly won't connect to internet
by Thomas Kerns McKnight - 5/7/08 12:32 PMIt could be a firewall setting. It could be a software update. Whatever it is, I cannot connect to the internet using Extreme (it does connect to the internet using just plain old wifi). This is a sudden problem--it worked fine last week.
I'm using OS 10.5.2.
Thanks
Regards,
Tom McKnight
(NT) Is this related to your other post?
by mrmacfixit
- 5/7/08 4:44 PM
In reply to: Airport Extreme suddenly won't connect to internet by Thomas Kerns McKnight
Response
by Thomas Kerns McKnight - 5/7/08 6:48 PM In reply to: (NT) Is this related to your other post? by mrmacfixit
No. Nice catch. But I have two Macs cooking here in the office, one on each of two different floors. One is a MacBook and the other is a MacMini. Haven't been without a Mac at my side for 21 years, even though the main machine is a PC. My Macs never let me down, well, until now.
On the extreme,
by mrmacfixit - 5/8/08 4:46 AM
In reply to: Response by Thomas Kerns McKnight
do you have NAT turned on?
Also, is the Extreme set to hand out IP addresses independently of the main DHCP server.
ie. If you connect via ethernet, will your IP address be in the same range as when you connect to the Extreme?
Airport usually pushes out 10.x.x.x IP numbers while wired Routers use 192.168.x.x numbers.
P
NAT
by Thomas Kerns McKnight - 5/8/08 6:58 AM In reply to: On the extreme, by mrmacfixit
Hello hero,
Honestly, the only thing I know about NATs is down the street here in DC at the Nationals Stadium.
What is a NAT and where do I find it?
Also not sure what to do to locate the IP addresses.
I'm betting you have the correct solution in sight.
Looking forward to seeing your answer.
Thanks
Tom
IP addresses
by mrmacfixit - 5/8/08 12:39 PM
In reply to: NAT by Thomas Kerns McKnight
You will find that in the Network Pane of the computer that is connected to the Airport Extreme.
NAT. Network Address Translation. More on that when I get back to a Mac after work.
Do you know what IP addresses are used on the rest of the wired network machines?
On Windows: Start > Run > cmd > ipconfig This will show the IP address of that winbox
On the Mac. System Preferences, Network, Airport. You should see the IP address.
Compare them. The only differences should be the numerals after the last . (dot)
P
Cannot compare
by Thomas Kerns McKnight - 5/8/08 2:19 PM In reply to: IP addresses by mrmacfixit
Hi
The Airport Express works only on or for the Macbook and no others.
The IP address for the express as viewed from the Macbook is 10.0.1.200 This seems to be an odd address. Normally they have a pattern as follows: xxx.xxx.x.xxx
Thanks
that's a good address.
by mrmacfixit - 5/8/08 2:55 PM
In reply to: Cannot compare by Thomas Kerns McKnight
for a wireless base station.
The normal pattern is xxx.xxx.xxx.xxx, three numerals for each octet. Mostly though, you do not get to see the spaces all filled with numerals. I have 192.168.1.100 and up, as do millions of other home network users.
Technically, the Airport Express works with any wireless enabled device but I'll accept that you only have Macs connected to it.
Do you only have a wireless network?
If there is a wired network as well as the wireless one, what sort of IP address do the wired machines get?
Is the Extreme the Router on the network? If it is not, then you may have two DHCP servers on your network. Turn off the DHCP broadcast from the Extreme and see what happens.
Is the WAN side of the Extreme getting an IP address from another router on your network? If the WAN side shows 192.168.x.x then you have two DHCP servers running.
P
Yes there are two
by Thomas Kerns McKnight - 5/8/08 3:09 PM In reply to: that's a good address. by mrmacfixit
The second one, which is the primary WIFI network in the house, is 192.168.0.197
The Macbook can easily work through this network. Until recently the Macbook worked very well with both/either. Then suddenly the internet would not function through the Extreme.
Reset the Extreme to Factory Defaults
by mrmacfixit - 5/9/08 6:34 AM
In reply to: Yes there are two by Thomas Kerns McKnight
and start again with it.
The manual will explain how to do that.
To configure the Extreme you will need to be connected to it via ethernet, not wireless.
Once it is reset, configure it and it "should" work again.
If I understand you correctly, you have two networks, both with wireless capability, in the house and NONE of the computers are connected to the routers via ethernet cable. Is that correct?
Are these two separate networks or are they both connected to a single Router and Modem?
P
two networks
by Thomas Kerns McKnight - 5/9/08 8:41 AM In reply to: Reset the Extreme to Factory Defaults by mrmacfixit
Hi
The signal arrives into the house via cable.
Then it goes to the DLink wifi. The DLink has a port in which the Extreme is attached. Both wireless networks operate simultaneously. Both are capable of n signaling. Both worked fine until last week when we unplugged everything because of an impending thunderstorm. There were no electrical hits and all equipment in the house appears to be fine. Well, except for this. Remember, the Extreme is visible and connects to the MacBook just fine, except it cannot deliver the internet connection.
My son set it up about a year ago. How do I access the controls of the Extreme? Hardwire, ok. Then what?
And many thanks.
AHA!!!
by R. Proffitt - 5/9/08 9:06 AM
In reply to: two networks by Thomas Kerns McKnight
Reading this reply rings a bell. To have TWO routers you may have to CAREFULLY REMEMBER WHERE IT PLUGS IN (what to what port!)
Here's a link in our Networking Forum to an article about using TWO ROUTERS. You don't use the uplink port and many will get it wrong.
Read http://forums.cnet.com/5208-7589_102-0.html?forumID=62&threadID=264135&messageID=2754854#2754854
Bob
Bingo!!!
by Thomas Kerns McKnight - 5/10/08 7:39 AM In reply to: AHA!!! by R. Proffitt
I went into the Extreme controls and redid them, frankly like they were before. Voila! Extreme now connects to the internet. On the Mac Mini, I just switched it over to the extreme and it works fine. I never could shake the old password in the DLink wireless connection, even after I erased the link in Utilities. No need to chase it down because I'm a happy camper.
Thanks for all the help.
Macs really spoil us. In all these years of having Macs at my elbow this was the first time I ever had to rummage around the guts of the settings.
On we go. Nice also to know that CNET is the place to go for expert advice.
Have a grand weekend.
Tom
Same Problem
by txupham - 8/14/08 6:44 PM In reply to: Airport Extreme suddenly won't connect to internet by Thomas Kerns McKnightBob, I'm having EXACTLY the same problem. And I have EXACTLY the same set up. 2Wire wireless modem/router which sends a WiFi signal I can receive on my Mac wirelessly. But then an Airport Extreme cabled into it that "used to" broadcast a transmitted wireless signal but no longer shows up. Just stopped. It used to be that I could access either or. Now all I have to choose from is the 2Wire. The green light on the Airport Extreme is on, it appears "happy" but no signal is appearing to come from it. And I'd prefer to link to it. When I scan for the "Airport Utilities" under the Utilities Control Panel I get, "no device found." So, I can't change the Airport's settings. I can't reach it. How did you get into the Airport's controls? I have hardwired it now via Ethernet and it shows an ethernet connection through the Airport but it still will not pick up on a scan and will not allow me into the utility for its settings. How did you access the controls? Thank you!!!
Almost similar problem here
by Japanesedave - 8/17/08 11:44 PM In reply to: Airport Extreme suddenly won't connect to internet by Thomas Kerns McKnightI have a similar, but not exactly identical problem.
My set up:
Wired Buffalo Hub connected to Optical Fibre internet.
MacPro plugged into one connection off the hub.
Epson wireless print server plugged into one connection off the hub (it won't connect wirelessly so is used configured for wired operation.)
Dell connected to the last connection off the hub.
Airport Express connected to another connection off the hub.
Connected to the Airport Express are:
Wired - Airtunes Speakers, USB Printer
Wireless - G4 Powerbook running 10.4, MacMini Running 10.5
In addition, the MacPro also connects to the Airport for inter-machine file-sharing and iTunes.
My problem lies with my MacBook Air which was perfectly happy to connect to the internet through the Airport until this week when it suddenly stopped, even though it is connected to my Network (Password protected, WPA2 encryption.) I have not changed anything, added anything nor updated anything between everything working swimmingly and everything not. All software is at the latest version, as is firmware.
The status is now:
All machines can see the network.
All machines can see the printer and Airtunes
All machines EXCEPT the Air have 10.x.x.x IPs from the Express by DHCP with NAT. The Air has a self assigned IP.
All machines except the Air can connect to the Internet wirelessly, including the MacPro when I tell it to use the Airport link as its connection.
It seems that the Air is either not requesting an IP address, or not recognizing the answer when it gets one, or the Airport Express is ignoring it. The Air connects perfectly well through the USB LAN adapter or off every other WiFi spot I have tried it on, all with the same Network, Firewall and Little Snitch settings. I have rebooted, reset and re-anything else I can think of the Express and the Air. If I turn the Firewall and Little Snitch off on the Air I can, maybe, get a connection, but not every time.
I am assuming there is a corrupt preference file somewhere on the Air, but I don't have the first idea which one it would be.
Any suggestions gratefully received!
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