IMac/TV connection issues

My power went out earlier (which happens a lot as I am on a payg meter) and when everything came back on my TV would no longer display my iMac screen. Both devices knew they were connected as when I unplugged the HDMI cable the TV said 'No Cable' and when connected again the iMac flickered and the TV changed to 'No Signal'.
I plugged the HDMI cable into one of the other ports on the TV and the picture came back on. I set the screen resolution and everything seemed fine again until I tried to unselect 'Mirror Displays'. When the screens are mirrored the TV picture works fine but the sound comes out of the iMac which isn't what I want, when I try to de-select mirror displays I am no longer able to change the resolution of the picture on the TV screen and it is unviewable.
I've been at this for three solid hours now and any ideas would truly grateful. Thanks.

EXTRA: I have a late 2009 iMac, and the TV is a Samsung UE32F5000. Before I got this TV I connected to my old one with a VGA cable and a male/male headphone jack, I gave the headphone jack a try but I got no sound from either device that time.

Similar Messages

IMac Internet Connection Issues (Why do I keep getting kicked off?)

Hi All.
I have a 24" aluminum iMac that doesn't like to stay connected to the internet via ethernet or Airport. I recently moved and am using a Clear modem that I am directly connected to via ethernet and the modem is functioning fine. My Mac will access the internet perfectly and then then next morning not have a connection at all. Diagnostics fail at Network Settings.
I have renewed my DHCP lease, restarted both comp and modem...jumped through all the hoops with a Clear rep. Still nothing. Not using any routers or 3rd party devices to connect unless using the Airport.
We have free internet where we live and my Airport will detect the router, but will not connect to the internet. The airport reads full signal strength, so there should be no issue. I have not changed my firewall or privacy settings, so there should be no issue there either. I did recently upgrade my Firefox application.
With both the Airport and ethernet I seemed to just be getting "kicked off" the internet. Each time I get kicked off, reconnecting is more of a chore...Please help Thank you in advance for any help you can provide!

Hi Rick.
I have Clear internet service, which does not run via cable or telephone line. I assume it is DSL. My Mac acted the same when I was on cable though, only the connection always come back after resetting the linksys router I had at the time. It only seems to drop the connection after waking from sleep mode.
I am using a standard ethernet cable. At times, in the Network portion of System Preferences, the status of my ethernet reads "unplugged" when the ethernet cord is still connected.
I double checked the connection speed within the network utility, as you suggested, and everything looks as it should.
The wireless situation...I do not have control over the router. It is free wireless via a linksys router in our apartment complex (only 5 or 6 units). I have never been able to connect to this but the other computers in the household pick up the signal perfectly.
Thanks for your help Rick. I appreciate it very much.
V.

IMac Internet Connection Issue

I just switched from AT&T U-Verse to TWC Internet – everything worked great with AT&T but they just kept raising the price. Now that I’m on TWC, my internet works great to all the WiFi devices on my network (iPad, Apple TV, phones, etc.) – close to the advertised 15 Mbps - but to my 2011 iMac I get less than .5 Mbps whether connected with an Ethernet cable or through WiFi. I’m guessing it must be some issue with the iMac since the router (a Netgear c3700) works with every other device - are there some settings I need to tweak? The computer itself works fine, and worked great with the interne on AT&T just a couple weeks ago before I switched. I’ve tried restarting everything and different browsers without any success, and after an hour with customer support TWC concluded it is an Apple issue. Thanks for any help!

Tony ..
Try diagnostics > Wi-Fi: How to troubleshoot Wi-Fi connectivity
BTW, it helps to mention which OS X is installed on the iMac ..
Click the Apple () menu top left in your screen. From the drop down menu click About This Mac.
The version is noted there.
If you haven't tired this site, check your download speeds here > Speedtest.net

Please help; iMac G5 connection issues.

Hello,
Granted this is not the first time I have had frustrating network troubles with these units, however this time I just can't seem to fix it.
We are running a couple iMac G5's 1.6 GHz, 512mb ram w/ Mac OS X 10.4.11, both have airport cards installed and have worked on the network before.
As of the other day they both decided they no longer wanted to be on the network and just sort of dropped off, nothing was changed on the computer end or the modem end. I have attempted running network diagnostics, resetting the modem, recreating locations, powering off for extended periods and even so far as to do a tcpdump with terminal commands. I just can't understand why these machines have such problems with networking and why it has to be so extremely frustrating to troubleshoot. Can anyone please help me with a run through of what this could possibly be and maybe a step by step to fix it, I may just be dumb or missing something but blah.
Thanks much
-G

Change your router channel number. Most times this works & is all you have to do. Insturctions are inside your router user manual.
See KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
============================
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
If you are using one of Apple's routers, run the Airport Utility app which is located inside the Utilities folder. If using a 3rd party one, read its user manual and/or contact their customer support department/website.
=====================
If using Apple's Airport, please re-post over in one of the AirPort Forums.

My PC can connect to the airport extreme but with encryption it cannot connect to the internet my iMac has no issues, any help.

My PC can connect to the new airport extreme I just purchased but with encryption it cannot connect to the internet my iMac has no issues. If I open the airport exteme up and provide no security everything is fine which leads me to believe it is something with the encryption between the two devices. Not sure what step I'm missing here this shouldn't be this difficult.

Sorry, I should have been more clear. I am asking if the DNS IP addresses, not the IP addresses assigned by the DHCP service, are the same. DNS is like the Internet's version of the Yellow Pages. Your ISP typically will provide them to you or you can elect to use those provided by another source, like OpenDNS.
DNS is the service that translates a website's URL to its actual IP address so that you can access it. I am just trying to rule out that the PC is not configured properly with the correct DNS IP information.
The other thing to check is if the PC is configured to use a Proxy service. By default, it would not be.
Finally, what is the make & model of the PC. More importantly, if the PC is using either a PCI or USB wireless adapter, what is its make & model?

My iMac is connected to a Brother printer. I have Snow Leopard 10.7.3 As of yesterday, when I try to print a PDF it prints as a blank black page. Does anyone know how to correct this so that the PDF will print as I see it on screen?

My iMac is connected to a Brother printer. I have Snow Leopard 10.7.3 As of yesterday, when I try to print a PDF it prints as a blank black page. Does anyone know how to correct this so that the PDF will print as I see it on screen?

If you are running Mac OS X 10.7.3 then you have Lion installed, not Snow Leopard. It's probably not important to this discussion, but something you should be aware of.
What application are you printing the PDF files from? Have you tried opening the PDF file using the Preview application that can be found in the Applications folder? Does the issue still occur? Have you tried other PDF files from a different source?
Another poster in the following discussion thread reported that this method resolved their black blank PDF issue when viewing (and presumably printing) PDF files from Safari.
https://discussions.apple.com/thread/3890509?start=0&tstart=0
This solved my question by mcbuffy on Apr 20, 2012 11:29 AM
There's a solution if you want to see the PDF inside Safari's window :
Go to the folder : Your Hard Drive / Library / Internet Plug-ins.
If you see a file with PDF in its name drag it to the trash.
Quit and restart Safari to test with a PDF.
If it works you can empty the trash.

Multiple Internet Connection Issues

Hi there, long time reader first time poster.
I figured I should post this as, while having read through hundreds of similar posts I still can't figure out how to solve my connectivity issues.
I just bought a new iMac 21.5 inch 3.2Ghz i3 model and while I am happy with the machine overall, it is the second one in a month - the first had a faulty ethernet port and refused to connect to the internet out of the box. Apple replaced it without question - almost as if they knew.
The replacement has now seemingly developed the same issue.
Some background info. The computer was connected both through ethernet and through the TC I bought to back it up until yesterday. So I was getting both a wireless signal from the TC and one through ethernet.
I have a hub that has 5 devices connected to it ( Printer, Cable TV, iMac and TC - now a PS3 ) That hub is served a signal by a simple NTT modem connected to a phone line. That modem is now nearly 5 years old but has always given great net speeds so I don't believe the problem to be the modem - I could be wrong though.
I just bought a PS3 and tried connecting it yesterday but had multiple problems. Despite me entering the correct PPPoE information to the letter, the PS3 refused to connect, saying the password and username was incorrect. I could connect it via a Bluetooth signal but no hard wired connection would work.
So I unplugged everything from the hub, shut down all the machines, turned off the modem and let it sit for 10 minutes and then plugged the ethernet cable from the PS3 straight into the modem, giving it a direct line. Switched on modem, rebooted PS3 and tried again - this time it connected through ethernet. I still don't know how or why. I can guess but I'm sure you guys know much more about this than I do.
So then I tried connecting the iMac back to the net, reconnected all the hub, followed the same procedure. Off, sit for a bit, on etc. This time the PS3 has no connection and now the iMac has no connection either!
The TC gave a green light though so I was able to get wireless. I tried removing all net locations from the iMac, installing new ones, renewed the DHCP lease, but no matter what I did (PPPoE info 100% correct) it just refused to establish a connection.
The the bloody TC light flashed amber and I couldn't get wireless either despite being plugged into the hub and getting a signal! The PS3 is now working and the cable is fine so I am starting to think either I have cluster ****** the whole setup or something is wrong with the iMac.
I go away for an hour then come back and the stupid TC has somehow picked up a connection! The light is green again?! But now the time connected display is scrolling repeatedly. I've got net but what the **** is wrong with all this?
Bottom line - not ethernet connection for the iMac but TC seems to be working and all other devices have a connection.
Please help me if you can! I just can't figure any of this out.
Message was edited by: Zildog
Message was edited by: Zildog

Your description is a bit confusing, but I use English as a second language, so it may be just me.
1. How is the hub connecting to your modem, by ethernet cable or wirelessly?
2. Which device is negotiating the internet connection with your ISP, the modem?
3. Does the device that negotiates the connection use PPPoE?
4. How are the other devices being handed their internet connection? DHCP only?
Only one device should be connecting directly to your ISP using the PPPoE protocol and configured with your account username and password. This device is preferably the modem. This device should be configured to hand out internal IP addresses to the other devices on your LAN using DHCP. All of the other devices should be configured to request an IP from that device, whether by ethernet or wi-fi, just with DHCP.
Dah•veed

New iMac will connect to Airport but not Internet

I've just bought an Intel iMac 2.94ghz, brought it home and tried to get it onto the internet.
It sees my wireless network and connects just fine, with all bars full. But if I try to view a page in Safari, I get the 'You are not connect to the Inernet' page. I've tried restarting, turning wireless on and off, restarting my router, restarting, reseting and updating the firmware on my Airport Extreme, dumping AppleAirport kexts, disabling IPv6, renewing the DHCP lease (always comes back self-assigned) etc etc but nothing helps.
Additional info:
* my iPhone, MacBookPro and girlfriend's Windows laptop all still connect to the internet fine
* my iMac can see and connect to the other computers on the network, and vice versa
* my iMac cannot connect to my router, unless I manually assign my iMac an IP address
* if I manually assign my iMac an IP address, I can see my router, but am still 'not connected to the internet'
Has anyone got any ideas what could be wrong here, or should I be taking my iMac back to the Apple store?

Bought my iMac in February and worked fine up until about a month ago. I have assigned a manual IP address outside the range of other devices in my network (e.g. 192.168.0.10) and this seems to do the trick (most of the time). The problem I had was the self assigned IP address wasn't in the usual range for my router so while I was connected to Airport and the internet I couldn't view any webpages. Had to do the same thing to my Macbook which I purchased about a month ago.
The strange and very frustrating thing is sometimes it doesn't recognise my preferred network but then when it asks me to join a network, my network appears! When I try to connect and confirm password, connection times out. Whats that all about?
The bottom line is the assigned IP solution doesn't always work but it seems a combination of issues rather than one. None of the other devices on my network (ReadyNas Duo, Xbox 360, PS3, Wii etc) have issue connecting to the router using DHCP but for some reason Airport has trouble dealing with this and assigning a correct IP or can't find the network all together.
Only thing I can think is its some Airport update that has caused these intermittent issues and realy hope they fix it soon.
So no update but just wanted to share my experiences in what seems a very wide scale issue...

IPad2, Verizon 3G, VPN Connectivity Issues

Greetings all. I am the systems administrator for my corporation and have seen an issue that I wish to present to the community for discussion.
For those enterprise users that have an iPad2 with Verizons 3G, are you experiencing connectivity issues while trying to connect to your VPNs from the 3G network? If so, have you found any work around to allow connectivity or does it work fine for you?
Here's a summary of my issues:
We have a VPN server built on Debian Linux that has been in operation for over four years. It handles remote VPN connections from Windows, Linux, Android, OS X, iOS, and from many different devices including multiple flavors of Apple products (iMacs, Minis, MacBooks, iPads, etc.). To date, it has performed flawlessly with assorted devices connecting to it through broadband and assorted 3G networks.
Recently I purchased an iPad2 with Verizon 3G. I was able to set up the VPN connection using PPTP and connect using a Wi-Fi connection. When I turned off the Wi-Fi and attempted the same connection via Verizon 3G, it fails. I then took an associates iPad1 using AT&T 3G, set up the same connection, and was able to connect. I don't have access to an iPad2 on AT&T 3G so, I can't speak for that.
Here's the logs from the VPN server while connecting from my iPad2:
Wi-Fi
Jul 27 05:20:43 localhost pppd[31694]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Jul 27 05:20:43 localhost pppd[31694]: pptpd-logwtmp: $Version$
Jul 27 05:20:43 localhost pppd[31694]: pppd 2.4.4 started by root, uid 0
Jul 27 05:20:43 localhost pppd[31694]: Using interface ppp2
Jul 27 05:20:43 localhost pppd[31694]: Connect: ppp2 <--> /dev/pts/4
Jul 27 05:20:46 localhost pppd[31694]: Unsupported protocol 'IPv6 Control Protocol' (0x8057) received
Jul 27 05:20:46 localhost pppd[31694]: found interface eth1 for proxy arp
Jul 27 05:20:46 localhost pppd[31694]: local IP address 192.168.1.69
Jul 27 05:20:46 localhost pppd[31694]: remote IP address 192.168.1.82
Jul 27 05:20:46 localhost pppd[31694]: pptpd-logwtmp.so ip-up ppp2 scott XXX.XXX.XXX.XXX (removed external IP for security reasons)
Quick connect, able to utilize VPN connection normally. No issues.
Verizon 3G
Jul 27 05:20:29 localhost pppd[31682]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Jul 27 05:20:29 localhost pppd[31682]: pptpd-logwtmp: $Version$
Jul 27 05:20:29 localhost pppd[31682]: pppd 2.4.4 started by root, uid 0
Jul 27 05:20:29 localhost pppd[31682]: Using interface ppp2
Jul 27 05:20:29 localhost pppd[31682]: Connect: ppp2 <--> /dev/pts/4
Jul 27 05:20:32 localhost pppd[31682]: peer refused to authenticate: terminating link
Jul 27 05:20:33 localhost pppd[31682]: Connection terminated.
Jul 27 05:20:33 localhost pppd[31682]: Exit.
As you can see, the peer refuses to authenticate causing the link to be terminated while attempting to connect using Verizons network. This is with the same VPN connection settings on the iPad2 that just worked with WiFi connection from the same device.
Here's what I can verify with regards to 3G networks:
Older (<4) iPhones and iPad1 using AT&T can connect
Windows and OS X based laptops using Sprint 3G can connect
Android based smart phones using Sprint 3G can connect
I have not called Verizon or Apple Support yet but, that's next when I have the time. My initial conclusion is that there is something with Verizons 3G services that is causing the issue. It may be that Verizon is using some sort of data compression process that is problematic with VPN transmission. While the log shows an unsupported IPv6 protocol when connecting via Wi-Fi, it still negotiates a successful connection and I don't think that's the root cause for the disconnect. Thoughts?

Hi Alexander,
I am running in to the exact same issue (although not with Linux). Did you ever find a fix for this? I have some support tickets open with my VAR's, but found your post and thought I would check. If I find anything I will post.
Thanks
Stu

IChat video connection issue, not related to router

I received a brand new 20" iMac Core 2 Duo just yesterday and intended to use iChat AV to video conference with my girlfriend, who has a 12" iBook G4 1.2GHz with an iSight and all system software up-to-date.
We both have DSL connections at home. We also both have wireless routers. The very first time we tried a video conference, it worked perfectly without a hiccup and everything just looked and sounded wonderful. At the time, she was connected wirelessly and I was connected both wirelessly and through Ethernet to my router's local network.
The second time we tried it (only a few hours later), seemingly without having changed any settings, it failed to work, and hasn't worked since. At first, we would get Error -22, saying something about how bandwidth is insufficient to maintain a video conference. However, I do not believe bandwidth is the real issue since all other network/internet tasks on both ends are spiffy as usual. We also both tried turning off Airport and just connecting through Ethernet to our routers' local network. Same problem.
To then determine if the problem was with one our routers, we both set them aside and plugged our DSL modems directly into our computers and connected to the internet with PPPoE. This appears to partially fix the problem: we are able to initiate a video conference, we both have audio, I can see her, but she can't see me; sort of a one-sided conference. On my screen, the image of myself freezes as soon as the conference is initiated. So unless I'm missing something, the ultimate cause of this problem doesn't appear to be the routers.
You can bet I tried a bunch of the common tips mentioned in this discussion forum before posting this question, such as changing the iChat port in the preferences, turning off Firewalls in the Sharing preferences and changing Quicktime streaming speed.
In summary, it worked once and hasn't worked since, and routers do not appear to be the cause of the issue. Does anyone have any further advice for me? Any help would be greatly appreciated! Thanks.
iMac 20" Intel Core 2 Duo 2.16GHz Mac OS X (10.4.7)

First off I want to thank James for his willingness to help me test connections today. James has suggested I check into upping my Mother's connection. I will definitely look into that.
I wanted to update the thread that I tried the three test accounts at Apple (appleu3test01-3) and had success from all three on my home computer via my wireless configuration no less. This is what stumps me about my connection issues with my Mother - we can both connect to others but between us we get error -8's since iChat 3. I also find it odd that this is happening even though we are both Earthlink customers - I would chalk it up to routing tables or something if we were on different ISP's.

Messages App| connectivity issues since upgrading to Mavericks

is anyone having problems since upgrading to Mavericks with connectivity issues in the "Messages" app? Im on a 2011 MacBook Pro. I will start a desktop share session with my folks (IMAC) and within 2-3 minutes of having access to their desktop, I'm unable to control any longer and their system freezes.

HI,
When iChat 3 came out someone tested whether it would work on the platform that was running iChat 2 and also tested whether iChat 2 would work on the later OS.
This eventually led to the Reinstall procedure for iChat 3 up to the iChat 5 version.
Since then the app has required either a Backup version from when it was working, a copy on another machine running the same OS and app version numbers (the two go hand in hand) or you have to Reinstall the whole OS which will always update you to the latest version of the OS (and in the case of Messages any updates it has had).
8:01 pm Saturday; December 21, 2013
 iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

My Mom's 2011 iMac is having issues loading web pages.

This past week my mother's iMac (2011) began having issues with the internet. She told me that whenever she ties to search for something on the internet, the reload bar in Safari constantly spins and takes forever to load (around 40 seconds).
We are using an Air Port Extreme router (2011 model), and my mom's iMac still has Snow Leopard (Mac OS X [10.6.8]) installed. The other computers in our house (a 2009 HP Touchsmart, a 2011 MacBook Pro, and a 2013 MacBook Pro) have no issue whatsoever. I recently had to restart the AirPort device in June due to issues, but it was fine for the last month up until Sunday, July 20th, 2014. The iMac is connected to the AirPort Wi-Fi network, but it's incredibly slow.
Is this problem happening because she hasn't updated her computer to OS X Mavericks?

Try rebooting the modem and router and her iMac. If that doesn't help create a new network location Using network locations (Mac OS X v10.6 and later)

IMAC looses connection to Printer

Computer will not print and seems to lose connection to the printer. I deleted all printers and made a new printer connection. Printer has address 192.168.0.14. Later IMAC looses connection to printer again. I look at address on printer and it is now 192.168.0.15. Its done this several times. So why does the printer keep changing its address? Is there a way to set it permanently?

Hi I may have found what you are looking for to set the printer up with a dedicated IP Address. The printer obtains the IP address from your router, I'm not sure why your router is reassigning the IP addresses so frequently.  All of the steps for troubleshooting the Printer Does Not Maintain Wireless Connection are on available on that document, but I have copied the basics on setting up the Static IP address. (Solution five: Assign the printer a static IP address) You can review that document and try the other solutions if you continue to have connectivity issues. Locate your printer's current IP address, which you already haveOpen an Internet browser (Safari, Chrome, Firefox, etc.) on your computer.Type your printer's IP address in the browser's address bar, and then press Enter. The Embedded Web Server (EWS) opens.Click the Network tab from the EWS navigation menu.In the Wireless section, click the Network Address (IP) or IPv6 configuration, depending on your network setup.Click Manual IP, and then click Suggest a Manual IP Address.
A manual IP address, Subnet Mask, and Default Gateway displays.Don't forget to save or apply the settings I believe you might want to try to refresh your network connection afterwards. Power cycling your router allows it to reestablish a fresh connection to all of your devices. Here's how to power cycle your network if you are unsure: 1) Unplug the power cable from your wireless router (NOTE: Do not reset the router)
2) Do the same for the printer
3) Shut down the computer
4) First plug the router back in, and wait for it to fully power up
5) Then plug the printer back in and wait for the wireless light to become solid.
6) Once both the router and printer are on, go ahead and turn the computer back on  Check to make sure the manual IP address has stayed on the printer.
You may also have to remove and add your printer in Printers and Scanners.Open your System Preferences, click on Printers and Scanners.Click the name of your printer, click the minus sign (), and then delete the printer.Once the printer is removed, click the plus sign (), click Add Printer or Scanner, click the name of your printer  Please let me know if these steps resolved your issue, or if there is anything else I can do to help.  I look forward to hearing from you!   Thanks,

Jambox connection issues

I'm having serious problems syncing a mini Jambox with my Macbook Pro through bluetooth. The moment the Jambox is set up as a bluetooth device, it cripples the whole machine, making it impossible to do anything—even removing the device from the bluetooth list is difficult. I've successfully done it on my iMac with no issues, and realized a discrepancy with the success dialogue boxes that I think might be the source of the issue. When I connect successfully with my iMac, I get this success dialoge box:
However, when I do it from my laptop, I get this (please excuse the awkward screenshot—the crippling it makes it hard to even take a screenshot!) :
For some reason, on my laptop, when the jambox bluetooth device is set up with some extra bullet points of explanation. A couple look innocent enough, but I don't think it should be set up as an audio input device (its just output), but its the "A computer serial port was created" bullet point that feels to me like its creating all the problems. Because, really, the jambox should not be associated with a computer serial port. Right? I have no idea how to get the bluetooth setup to not do this, and do a more standard setup like it does on my imac.
Any tips would really be appreciated!
thanks.

I believe this image to be a helpful assist to others who may be experiencing the same problem, and who obviously have access to the same Verizon provided tool.

Cannot get iMac to connect to AE or TC wireless, can connect by ethernet

I Cannot get iMac to connect to AE or TC wireless, can connect by ethernet. All other devices (iPad, Apple TV, Roku, iPhone, iPad Touch) can connect to wireless network without any issues. OS is 10.6.6, both apple TC and AE are current with their software. Any help would be greatly appreciated.

AE=Airport Extreme? or Express? - you mention TC (Time Capsule) above, but, I don't want to assume.
*Sorry, it is Extreme, and yes TC is Time Capsule*
If Time Capsule, have you tried to a reset? - http://support.apple.com/kb/ht3728
*Yes did full factory reset*
What band are your using - 2.4Ghz or 5Ghz?
*2.4 GHz*
What is your TC connected to - what type of router - cable or dsl?
Cable
Thanks again for your patience in helping to resolve!

IMac/TV connection issues

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