Wi-fi only works with Ethernet cable

Hey guys!
I'm using a MacBook Pro 15" 2.2 GHz Intel Core i7, with Lion. My wi-fi works fine at home and several other wi-fi spots, but at work it seems that it can only access the internet with an Ethernet cable plugged in. Immediately after I unplug the ethernet cord, the wi-fi bars turn grey with a exclamation mark on top of it, displaying that there's no internet connection. I'm pretty sure it has something do to with IP address recognition or something like that, I just can't fix it!
The wi-fi at work works perfectly for everybody else, both mac and PC users. Help?
Cheers,

check which wifi router they are using. I had a linksys with that issue, and the firmware was old. It would connect, but no internet.
also
try setting up your tcp/ip with manually adding a ip address, similar to an address that works on other devices.
if u check you automatic dhcp ip and it starts with 169 then u know that its Class B (APIPA) address. This range is use in Zero Configuration Network and wont have internet. try to fix it manually.

Similar Messages

Only working with Ethernet...help!

Express only works with ethernet cable into Extreme...not recognized by Mac wirelessly by itself. Any advice?

I also just noticed that Software update and Safari is not working either. Yet I can surf (and posting this) using Firefox. Problems with my network settings?

AE Works with Ethernet Cable, but not Wirelessly. Please Help!!

I purchased the AE to run music streams via Airtunes from my wireless router/PC upstairs to my stereo downstairs. When I hook everything up upstairs with the ethernet cable, everything works like a charm, but the moment I remove the ethernet cable, the AE is not being picked up by the network. I set everything up for the wireless network (while the ethernet cable was hooked up) and have a green light on the AE, but when I try to use it wirelessly, it is blinking amber and not appearing within AirPort Utlity (only when hooked up with ethernet). I have a Westell 327W Wireless Modem/Router and could use some advice as to what I am doing wrong to get some tunes downstairs.
Thank you in advance.

Hi:
I was chasing this very topic for a long while, then took a break.
You are suppose to be able to stream music from your PC to external stereo speakers via iTunes, thru an Airport Express (AE) wirelees connection.
Here's my status:
It is pretty easy to get a wireless connection up & running so that you can play music from your laptop/pc to external wirelss speakers via iTunes, thru AE.
I have that up & running. The problem comes in when trying to add the Airport Express to an already existing Linksys router's wireless network. When setting
the AE up, you'll most likely get 4 error messages that have to be addressed before you go from from a flashing amber LED to a solid green LED. If you are just using Apple's ad-hoc wireless conncetion, you'll need to use Airport Utility to address the 4 issues. Basically, Airport Utility doesn't know how to address AE, since it doesn't have any IP address to a network. The other 3 are simlar problems. If you just tell Aiport Utility to ignore each of these problems, you will get the solid green LED on AE, and you'll be able to stream music directly from your PC to your speakers, wirelessly, once you finish the AE configuartion, and Airport Utility reconfigures the AE.
I have my HP laptop and printer setup with a Linksys 54G Router and Printserver,
so that the laptop and printer communicate wirelssly via the Linksys Router.
Now comes the fun...trying to add the AE to this already existing wireless network. I could get the AE to work when I had an Ethernet cable connected directly from a port on the router to the AE, but when I disconnected the Ethernet cable, the router no longer saw the AE in the network. I followed all of the instructions in the Airport Utility software, went seeking advice on this
newsgroup, the web, etc. Found lots of good information, but a lot of it was outdated.
I have my Linksys wirless network setup with WEP-64 encryption.
From what I have gathered, it is much easeir to add the AE to a WPA/WPA2 network, than to a WEP64/128 network, just because of newer protocols.
The problem that I have is that WPA encryption works much slower for me than
WEP encryption. Example: iTunes is roughly 60 MB is size. Downloading it
using WPA, results is a download time of 22-23 minutes; where a download
using WEP-64 takes 75-80 seconds !
In the past, what I was trying to do was add the AE to my already existing
wireless network. Now, I have a wireless network for the AE. I want to try to add this network to my already existing wireless netowrk for the Linksys router.
I just haven't taken the time to try it yet. From what Apple tells me, Linksys makes this setup messy. The fact that the AE works by itself proves that the
device is OK.
For a history of the problems that I have been chasing in trying to get the AE setup and added to my already existing Linksys router network, visit the following link in the list of "problems" on this Apple newsgroup's web page.
Search for the folowing topic title:
Problems Setting-up Airport Express to Play Music thru External Speakers
Currently, is is at the bottom of page 12 of this discusssion group.
The info in it may be useful to you.
Please let me know if you get yours up & running in the Linksys wireless
network.
Thank you
DaleB ([email protected])

Mail only working with Ethernet, no wireless

I have 2 pop3 accounts in mac mail. All of the sudden they stopped working if i'm connected via wireless (any wireless, tried several in different locations, new ones too).
But if i hook up an ethernet cable, it will work. What gives? I'm on a MBP Pro, running 10.6.1

I also just noticed that Software update and Safari is not working either. Yet I can surf (and posting this) using Firefox. Problems with my network settings?

Printer won't work with Ethernet cable connected to AEBS

I've been using my AEBS with built-in modem for a year with no problems. Today I got a DSL modem (finally available in my area) and when I connected the ethernet cable from the DSL modem to my AEBS, my printer stopped working. It now gives the following error message: "Printing Problem - the process "mdns" stopped unexpectedly with status 1". The printer is still available from the printer setup utility and I tried deleting and reinstalling the printer
I have tried several different variations of restarting the modem and AE in various orders, but no joy. However, when I disconnect the ethernet cable from the AE and restart it, I can print fine.
I have three computers on the network (G4 MDD PowerMac, G5 iMac, and C2D MPB) and I get the same error message from all three.
Any suggestions (perhaps an interpretive dance to the network gods?) on how to get both the DSL and printer to play nice at the same time??
Thanks, Eric

see if anything in the Printer Troubleshooting Guide helps.

My WRT54G only working with ethernet to computer not wirelessly

I have a WRT54G wireless broadband router.
I used to have an ethernet cord from my computer directly to the modem and my sister went online using the wireless signal. I recently changed modems, my sister used the wireless signal for about two weeks. But later when I hooked up my ethernet corded into the back of the router (at first slot 1). My sister could never find the wireless signal. I tried restarting every thing. Not hooking up my ethernet cord, and just trying to get the wireless signal. Didn't work. Help please.

I assume you are using windows XP operating System... So follow this steps ....
Uninstall the drivers for the Adapter from start >> All programs ....
>> Insert the Setup CD in the cd drive>> Click on Exit when the
Linksys welcome screen appears>>Click on start. Unplug & replug adapter ...>> There should be a "" Found New Hardware Wizard ""
that pops up on your screen>> Click on “Install software
automatically “, and then click on next. Once the installation is
complete>> Right click on the wireless network connection icon in the
system tray besides the clock >>Click on view wireless networks and
then connect to your network name.

Wake on Lan works with Ethernet, not over Wi-Fi.

Hello, after several months of tests I came to this conclusion.
Wake on Lan only works with Ethernet for my iMac. Wake on Lan over Wi-Fi works for a few hours, but if the iMac is asleep for 6 hours or so, it becomes unavailable... On the other hand, with Ethernet it's always available even if it sleeps for an entire week.
My iMac isn't that old (mi-2011), so I guess it should handle Wake on Lan over Wi-Fi. Is it a software issue?
- I've got a MacBook Pro since Snow Leopard 10.6 and now with Mountain Lion it handles Wake on Lan over Wi-Fi without problem.
- I've got my iMac since Lion. Does the iMac only handle Wake on Lan with Ethernet and works differently compared to the MacBook Pro?
I prefer to use Wake on Lan over Wi-Fi because for the tests I've placed my iMac in the living room in order to plug it to the Time Capsule, but the right place for my iMac is in my bedroom.
I tried to change the MTU size as it is described here: http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/
Note that "Wake on Lan" is checked in my System Preferences, I don't think it's my router's fault, because my Apple TV, AirPort Express, iPhone 5, iPad 2 and my Printer don't disconnect even when they're asleep (I'm talking about my printer and Apple TV in that case).

loïcfernandezcastrillon wrote:
I'm connected with the WiFi of my Time Capsule (bridge mode). I have this configuration since Snow Leopard, and no troubles...
I understand that, but if your router is not an Apple AirPort Base Station then it introduces an element of uncertainty. Apple has implemented many changes related to wireless networking recently.
You are complicating matters by changing networkoversleep:
networkoversleep - this setting affects how OS X networking presents shared network services during system sleep. This setting is not used by all platforms; changing its value is unsupported.
Solving problems like this requires that you simplify your network environment and eliminate its unknowns. Using third party routers and making unsupported changes runs counter to simplification.
The iMac stays connected to the Time Capsule about 6 hours during sleep. Then it dissapears...
The iMac wakes periodically (every few hours) to inform your router of its network presence for Wake on LAN demands. Try changing your router's DHCP lease period to something longer than a few hours. For a home environment, a few days is more appropriate. This may not solve the problem, but it is better than making unsupported changes to your system.

Playbook only works with charger or USB cable despite batter showing 100% charge

After 2 years of faithful service, playbook only works with charger or USB cable despite batter showing 100% charge. As soon as the cable/charger is unplugged, it just switches off. When cable is plugged in again, and start button pressed, it reboots. I have reinstalled sftwer from scrathc via Desktop Manager, but the problem persists. I saw this problem raised in the fora several times, but never any explanation why it happens. Any ideas?
Solved!
Go to Solution.

A high resistance between battery lead and motherboard would allow trickle charge but not power discharge.
If you want to risk it, prise off the back of the playbook using an old credit card, locate the two screws holding on the battery lead, remove, clean up, then replace. replace back carefully as the antennae connectors are pressure pads.
Sarah.

My Telus wireless only works with WEP, but if I switch to WEP the wireless goes down on the other Windows computer being used in the same house. Is there a way for both of us to get wireless internet or do one of us have to be connected by the ethernet?

My Telus wireless only works with WEP, but if I switch to WEP, the wireless on the other computers in the house (which is Windows and WPA) stops working. My computer works with the ethernet cord but I want to be wireless too! Do one of us have to sacrifice our wireless?

For assistance in getting your MacBook to connect to a WEP-protected wireless network, please check out this Apple Support article: AirPort: Joining an encrypted WEP or WPA Wi-Fi network

AirPort Express not working with Ethernet

How is it possible, that my AirPort Express works only when my Mac Book Pro is WiFi connected to the network? As soon as I connect the Mac Book with Ethernet cable, iTunes doesn't find APX anymore. This is no Firewall issue, as I can ping and telnet to 3689 around in all directions. All software versions are updated.
OS: 10.6.5
iTunes: 10.1 (54)
APX: 7.4.2, connected to existing WiFi
Many thanks for your help, Stefan

I have the same issue. Mine fixed itself for a bit and now it's broken again. I'm thinking it's going to be intermittently broken. I've tried turning both devices off and on again but that did not help.

Apple TV homesharing only works on ethernet

Hi -
I have a 2nd Generation Apple TV connected to my wireless network. I have a Windows 7 64-bit computer with my iTunes library connected to ethernet on the wireless router on the same network. The only way I can get the Apple TV to see my iTunes library is to plug an ethernet cable into the Apple TV and connect it to the router. That is not ideal since I need a long cable across the floor to accomplish this. Does anyone know of any troubleshooting techniques I can use to allow the Apple TV to see the content of my Windows 7 iTunes library without ethernet? It would be wireless to ethernet. I am using the same Apple ID for the ATV and the Windows 7 iTunes.

lrthames
Re: Apple TV homesharing only works on ethernet
Aug 13, 2012 2:30 PM (in response to loïcfernandezcastrillon)
OK - will give that a try. Will let you know.
Any luck with this? Same issue

I have a new imac with imovie 11 however my hd everio camcorder will only work with imovie 8 or 9 how do i download imovie 9? all i can find are updates and my mac says i don't need it

i have a new imac with imovie 11 however my everio hd camcorder will only work with imovie 8 or 9. i tried to download imovie 9 but my mac says i don't need the update. How can i download imovie 8 or 9 complete not the update?

I really appreciate all your help. Today I spent some time on the problem. First I purchased any video converter from the ap store and then I connected the camera to the mac with the original usb cable that came with the camera. I turned on the camera and selected backup on pc and the logo came up on my home page. I opened it and after several attempts i found the 3 video files that were on the camera. I then converted them from a tod file to mp4 and then transfered them to imovie. Now I have to figure out how to send the video to youtube or move it to an external hard drive which I have not been able to do. So far I am not too fond of imovie 11. If you could send me the download for imovie 6 I then could try that route. When talking to apple support yesterday about the problem they suggested to get Final Cut Express. It's 200 bucks so before i order the install disc i would like to try your suggestion. My email address is [email protected] Again I thank you very much for your help! George

How can I use my time capsule with Ethernet cable? How is it also possible to use time capsule as a normal external hard drive?

My problem is that I don't know how to use my Time Capsule with Ethernet Cable, as when I use wireless it is really slow.

Make sure that there is an Ethernet cable from one of the LAN <-> ports on your modem/wireless router to the WAN port on the Time Capsule
Click on the Wireless tab at the top of the page
Change the setting for Wireless Mode to Off (I assume that you do not want the Time Capsule to provide a wireless network since you already have a wireless network)
Next, click the Internet icon at the top of the screen, then click the Internet Connection tab
Connect Using = Ethernet
Connection Sharing = Off (Bridge Mode)
Click the Update button at the bottom and wait 30 seconds for the Time Capsule to restart and display a green light
Then, you must power off your entire network...all devices....in any order that you want
Wait a minute
Start your modem/router first and let it run a minute
Start the Time Capsule and let it run a minute
Keep starting devices one at a time until everything is powered up
If you are using Time Machine for backups, you will need to reset the connection because you have changed the way in which the Time Capsule connects to your network
Open System Preferences (gear icon) on the dock
Open Time Machine
Click Select Disk
Click the Time Capsule to highlight it
Click Use for Backup or, it might be Use Disk
Now you can connect your Mac using an Ethernet cable to one of the LAN <-> ports on the Time Capsule to back up using Ethernet. Be sure to turn off the wireless on your Mac before you start the backup.
If you want to backup using wireless, disconnect the Ethernet cable from the Mac to the Time Capsule and turn on the wireless and connect to your wireless network. Your computer will now backup using wireless.

I bought this iPhone from Apple Retail Store for the full amount, but it does not work with my SIM card only works with AT&T

Hello,
I have an iPhone 4S 32Gb White AT&T, product part No. MC921LL/A, Serial No. C39GMLPWDTDC
I bought this iPhone from Apple Retail Store (from Fifth Avenue, NY) for the full amount. Now it does not work with my SIM card only works with AT&T. I restored the phone several times, but I have not received "Congratulations your iPhone has been unlocked". Please activate my iPhone to work with different SIM cards
Thanks,
Best Wishes

When did you buy it?
Apple did not begin selling an unlocked version of the iPhone 4S in the US until 11/11/11. I believe it went on sale only through the online store at that time. I'm not sure if it's available at retail yet.
What you purchased was a phone without a contract commitment. It is still locked to AT&T. AT&T will NOT unlock iPhones for any reason. Return it and get your money back, then use that to purchase an unlocked phone.

I have an Retina display MacBook Pro with HMDI out port. I also have an HDMI to Component cable with Audio Plugs. How can I get HDMI out to work with this cable when plugged into the Component and Audio ports on my TV?

I have an Retina display MacBook Pro with HMDI out port. I also have an HDMI to Component cable with Audio Plugs. How can I get HDMI out to work with this cable when plugged into the MacBook Pro and connected to the TVs Component and Audio in ports.

Will not work. To my knowledge, dual converting like that isn't supported. The Mac must detect the connected video output device and that sort of info cannot be done across an analog component uni-directional connection.

Wi-fi only works with Ethernet cable

Similar Messages

Maybe you are looking for