IMac or Router

I'm at my wits end with this mysterious problem.
My almost brand new iMac has worked flawless for many months now, connecting to the internet on our wireless network, using this Linksys router that is in a separate building along with the modem.
Suddenly, it no longer connects to the internet. Sometimes it shows the network name as available - many times does not even show the network, doesn't pick it up. But even when it DOES see the network, it does NOT connect even after entering the password for WEP security. (gives a message saying "there was an error connecting to the network")
So then I took this iMac and lugged it back to the other building where the router and modem are, and it worked just fine!
When I bring it back to its other location, it will not work at all. The odd thing is that it HAS worked in this location very well, for quite some time now.
Who is to blame?? The iMac? The router? Clearly, everything works if the computer is in the same building with the router.I have another laptop next to this iMac and IT gets a decent signal and works, so the signal strength is OK.
Any Apple/Mac gurus out there? Could my Airport Extreme card be suddenly defective and can only pick up the signal when its 4 feet away from the router??
It's exasperating because I'm finding it difficult to determine which piece of hardware is the problem.
Thanks!

You don't have a cordless phone near the new location do you?

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I've update iOS devices to 8.0 and now need to update xCode, but keep getting "unknown error -50" leaving me with a non-working internet connection - the only fix seems to be reboot of both iMac and router - any ideas?

Having updated all my iOS devices to iOS 8.0 I now need to update xCode to match. I've tried several times, and on each occasion have received an "unknown error -50" message after getting about 500Mb. After this my internet connection appears to be fully occupied, and the only fix appears to be a reboot of both the iMac (2.5GHx Core i5, 4Gb RAMm OS X 10.9.5) and the router (Netgear DG834 v5, firmware 1.6.01.34) At first I thought that the error had not stopped the download, but after waiting for 30 minutes the connection was still unresponsive, though traffic was indicated as passing through but the router status page, and no additional content had been added to the download. Anyone else having a similar problem and different ideas as to fixing it?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Imac internal router problem

We are using Bell Wimax to connect to the internet and due to their towers being down for 2 weeks, we had lost our internet connection. It is back up and running, however we no longer can connect wirelessly to the computer. I was using the imac as the router and have tried to reestablish a connection, however the other computers can't connect. They recognize and register the signal but won't join in. I have tried to reset the location and then redo the sharing, but again, it did not work.

Welcome to the Apple Discussions!
First off, the folks in the G5 forums may assist you better;
Forum : Using your iMac G5
You might make sure that your Audio MIDI Setup has not been reconfigured. I can't guarantee what is correct for a G5 PPC, just an Intel. The actual setting can be found in Apps/Utilities/Audio MIDI Setup;
1. Audio Devices pane
2. Built-in Output
3. Audio Output
Source = Internal Speakers
Format = 44100.0 Hz 2ch - 24bit

IMac as router - strange

I have seen several youtube videos and internet articles about this, but nothing really answers these issues.
I have an iMac (2013) using ethernet for internet. I want to set up a wireless connection for my ipad which uses my iMac for the router.
I have set up internet sharing in System Preferences and changed the wifi settings to use the new wifi network i have set up. However, when I select my wifi network, my ipad connects to the iMac connection, but will not connect to the internet. Also, the iMac loses its internet connection and the only way to get it back is to reboot. any ideas?

Why not just get a router, it sure would be a lot easier that attempting to troubleshoot this.

C309g wireless setup with iMac i7 / Router D-Link DIR-300

Just trying to get the wireless connection. I've just the USB-cable for the installation process evereything worked out fine. Now the test report shows that everything is OK. In mac os the printer is added to the print&fax menu status: green light.
But i cannot print / connect to the printer when I open the printer utility.
Think it's an IP problem!? The IP-Range from the router is 192.168.... now the printer got another IP address 169.254....
I do not know how to process further. DHCP-Server on/off in the router settings? Assign the printer a fixed IP within the DHCP range? Every device in my wireless network is assigned with MAC-address and IP in the settings because I wanted to make sure nobody could connect from outside. I tried to assign a free IP in the range 192.168 but that didn't work any suggestions?
Thanks

What router? What version of OS X?
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP

IMac Audio Routing, Simultaneous Built in & Headphone?

Hi there, First off im aware of soundflower, audio hijack etc...
I have a client, and that client has a new 20" iMac in a living room and wants to have the audio from the computer (youtube viewing...) sent to the TV while simultaneously keeping the audio playing out of the built in iMac speakers.
Maybe im missing something in soundflower or other apps but it seems that the iMac default sensing of the headphone jack automatically overrides any ability to do both.
Currently the TV is setup with a VGA cable sent from the minidisplay port and an audio cable in the proper audio ins.
The other solution would be to send audio via a USB device such as an m-audio product. But im trying to make it as fool proof as possible without creating enormous wiring clutter.
Could really use input on this ASAP. What am i not thinking of?
Thanks in advance for your time and help.

Saw this, wonder if it could work in conjunction with soundflower so the system knows to use both.
http://www.m-audio.com/products/en_us/Transit.html

TV TO IMAC

I BOUGHT A SAMSUNG SMART TV BUT COULD NEVER GET IT TO CONNECT WITH MY IMAC - IT COMES TO NETWORK SETTNG AND WILL NOT CONNECT -- MY IMAC AND ROUTER/MODEM AND TV ARE IN SAME ROOM SO SHOULD NOT BE A PHYSICAL WI-FI PROBLEM. WOULD LOVE TO GET IT WORKING BEFORE I START PT - - THANKS

Yes, you should visit www.elgato.com, they have several devices that will work. You just have to choose one that fits your needs.

No ping response from PC to iMac

After many problems and fixes to iMac G5 and Windows XP PC
connected via a router, this one specific problem is immutable:
Do a ping from the iMac to the PC -- no response. Ping from
PC to iMac or iMac to router or PC to router -- good response. Just in case it means anything, the PC firewall is disabled.
Both computers can connect to the Internet (via router to Cable modem), but until I did a disk cleanup (via VCOM SystemSuite) the PC would disconnect after about 2 minutes (but only if the iMac was up and running w/router).
Any idea why the PC will not respond to the iMac ping?

The problem was not a cable after all. I have two firewalls
installed in the Windows XP computer: Windows and SystemSuite. At least one of them remains active when disabled; I think it is SystemSuite. Rebooting the PC after disabling the firewalls allows the ping. That has been pretty consistent.
When I enable the Windows firewall with the box "Don't allow
exceptions" unchecked, leave the SystemSuite firewall disabled, on start up the ping is ok. That allowed Samba to work and I can transfer files.
Moral of the story: If I load up the system with enough junk something will not work.
Thanks again.

IMac OSX 10.9.5 Shows Brother MFC 8710DW Printer Is "Offline" and "Not Connected T

I have a Brother MFC 8710 DW that I've had for the past 4 months. It works perfectly fine with my other devices (iPad, iPhone, Windows PC and Macbook Pro) but it doesn't work with my iMac OSX 10.9.5. I did the things listed below but it keeps on telling me that the printer is not connected to my computer and whenever I check its status, it keeps on saying "offline." I've tried to contact Apple and they said that it's Brother's problem and that I should speak with them. However, when I called Brother, they said that it's Apple's problem. I'm at lost on what I need to do. As much as I love my iMac, I am tempted to return it back. Please help.
Things I've done so far but did not fix the problem:
1. Unplugged the printer, iMac and router and plugged it back in after a few minutes.
2. Removed the printer from my iMac and added it back.
3. Reinstalled the software from Brother.
4. Repaired the disk.
5. Plugged the printer and router directly to the wall.
6. Turned off and restarted my iMac and printer.
7. Downloaded the most recent OSX software.

It sounds unusual that you have been able to remove the Brother from Printers & Scanners on the iMac and add it back again, yet get a printer offline message.
Since you mention a router, is the Brother connected to it via a physical cable, such as USB? Or do you have a wireless router and the printer is connected to it via WiFi?
On the iMac, could you also open System Information (located in Applications > Utilities) and select Printers in the left column. If the Brother is the only printer on the iMac then its information will appear in the right pane. If you have more than one printer, then you will have a list of those printers in the top right pane. Select the Brother to see its information in the bottom right pane. Can you copy this information and paste back here. And since the MacBook Pro is printing okay, can you perform the same action on it so I can compare the setup for the same printer.

How can I improve my iMac wifi reception?

Hi there… looking for help to figure out how I can improve the wifi reception on my early 2008 iMac. I get very intermittent wifi signal – coverage varies from zero to full bars, but is very unreliable. I get much better wifi coverage from other devices in exactly the same location – XP laptop, iPod touch & iPad.
The iMac is located in the garage in our back garden which is about 30m from the wifi router in the house. I don’t have direct line of sight between the iMac & the router (although there are windows in the facing walls). I don’t have an option of running an Ethernet cable to the garage.
Here’s what I’ve tried so far:
1. Added an Airport Extreme. While this upgraded my UPC router / network from G to N, it gave no noticeable improvement to the iMac reception.
2. Added an Airport Express. I set this up to “Expand existing network”. I initially positioned this in the house (at the socket that is physically closest to the garage) but again, no noticeable improvement.
3. I then moved the AExp in the garage itself. For 30 seconds I had a green light on the AExp & full coverage… but then the coverage dropped & I got the flashing amber light in the AExp.
So now, I’m now wondering if it is possible to connect some kind of USB wifi aerial into the iMac that would enable me to boost the reception and / or run an external antenna away from the iMac & closer to the router (possibly in line of sight). I have checked in local stores & online, but couldn't find anything that fits the bill.
Any ideas?... I should add that network coverage in the house itself is great. I brought the iMac into the house & immediate got full bars & excellent reception. I have a lot of networked devices in the house & they all operate with no issue whatsoever.

hi Ralph,
what is the behavior of these devices with respect to surge protection?
to be honest i don't know. we have very stable power supply in Germany.
Can they be placed on the safe side of a surge protector?
don't see why not. i'm using a pair to get internet from the main router to my TC. the TC is operating in +bridge mode+ and creates a separate network for me.
the adapter next to the main router is plugged directly into a wall outlet, the one for my TC is plugged into my iMacs UPS. no problems there.
If you live in a high thunderstorm area like Tampa, FL in the US, you would not even consider using electronic equipment without very high quality surge protection.
irregardless where you live, operating my precious Macs without an UPS for each is unthinkable for me. surge protectors, IMHO, don't cut it ! it ought to be a UPS. heck, even my TC has one although just a simple one. my desktop Macs each have a UPS with a USB port so the UPS can send a shutdown command to the Mac in case of an emergency. my MBP has a built-in UPS, obviously.
so, everyone reading this: do yourself a favor and get a decent [_*Uninterruptible power supply (UPS)*|http://en.wikipedia.org/wiki/Uninterruptible_powersupply] such as [this|http://www.google.com/products/catalog?client=safari&q=apc+ups&oe=UTF-8&cid=118 8217317658000104&os=tech-specs].
Also, will these function on a circuit with ground-fault interruptors installed?
if power to the units is interrupted, they won't work. once power is restored, the will work again. again, if you connect everything to UPS systems, you will @ least have your local network running, even if the connection to the internet is interrupted.
JGG

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.

Port Forwarding on a Router

I'm getting quite frustrated with ARD 2.2. I'm trying to use ARD over the internet to teach my parents how to use their iMacs. I have all of the Network and Sharing settings turned on at their end, which isn't easy to accomplish since they are novice users 1500 miles away. I can use ARD to access and control the macs on my local network, but every time I input my parent's IP addresses, I get the message "Verify Failed", and it can't be because I have the wrong User Name or Password.
I've read a lot about port forwarding for macs behind a router and I may need to do it. But it seems like everyone but me knows how to forward a port and nobody has given step-by-step instructions on how to do this. So I have some questions.
1. I have a Linksys router on my end and a MacSense router on theirs. Do I need to enable Port Forwarding on both routers?
2. When I enter their IP addresses, their computers are "seen" by ARD. How can it "see" these computers if the port forwarding is not enabled?
3. My Linksys router has a web page that controls it, but nowhere is there a "Port Forwarding" option. Where is this located? Is it called by another name? Does it have something to do with NAT? How exactly do you "adjust" NAT settings to open a port?
All the macs in question are using OS 10.4.5 or 10.4.6. My version of ARD is 2.2. Here is the line of connection between their macs and mine:
Parent's iMac : MacSense Router : Cable Modem : INTERNET : Cable Modem : Linksys Router : 4 Port Hub : Airport Extreme Base Station : Powerbook G4.
I would appreciate any suggestions at this point. Thanks!

Things have taken a turn for the worse. After my last solution, we found that my Mom's iMac could not send email. She could receive mail and surf the internet, but not send. The problem showed up as soon as I mucked about with the router ports. She has a .Mac account, btw.
To complicate things, my ARD connection shows my Dad's iMac, not Mom's. I could connect to Dad's iMac through ARD but not Mom's. Only if we shut down Dad's iMac could I connect to Mom's. The odd thing was the connection I was getting to Mom's iMac was listed as Dad's computer!
I have read that ARD can only connect to one computer behind a router. No biggie, I'll just have them turn one off when I use the other. But how to solve the send email problem?
I decided to use the DMZ (De-Militarized-Zone) setting of their router to open all ports on one IP address. When I did this we could finally see my Mom's iMac with her proper name in ARD. But joy was short lived because my control and observe attempts failed. I get the message "Connection Failed to XXX" where XXX is the name of Mom's iMac. Adding insult to injury, the mail still won't send.
ARD shows the Current Application, Current User and Status (Available). I can send messages through ARD and they are received successfully (they can see the messages on their end).
If I can get this far, why can't I observe? And what happened to the sending of email? Help me Obi Won Kanobi - you're my only hope!
1Ghz Aluminum PowerBook G4 Mac OS X (10.4.6)

I'am cannot to connect to WI-FI I have I phone 6 my wireless is Linksys US E2500 no problem with my I pad or Imac keeps asking for cisco password admin what I tried

I cannot connect to my WI-FI with my new I phone 6plus all my other Apply equipment works Ipad and Imac my router is cisco Linksys us E2500.
Keeps asking for a password for Cisco system I have tried amin did not work. What is the answer?

Hi rsparkman,
Welcome to Apple Support Communities.
The article linked below provides a lot of great information and troubleshooting suggestions that’ll help resolve the issue with your new iPhone 6 Plus not being able to join your Wi-Fi network.
iOS: Troubleshooting Wi-Fi networks and connections - Apple Support
Cheers,
-Jason

Can i remotely share files between macbook pro and iMac

Want to know if I can do remote file sharing between macbook pro and imac.

Yes, absolutely. She can access her iMac from anywhere that has an Internet connection. If Screen Sharing is enabled, she can log in and use it as if she were seated at the iMac.
Provided the iMac's router supports the Bonjour Sleep Proxy (obviously all Apple AirPort Base Stations do), the iMac can even be asleep, and BTMM will wake it upon the router receiving a request to access the iMac.
The speed of her available Internet connection will be a limiting factor. Slower connections will be a bit laggy.
Her iMac will appear in a Finder Sidebar, under "Shared".

Imac 10.5.8 airport card problems

I'm a Mac newbie. Bought an iMac in Dec 2008, used Linksys wireless router with it successfully until about October 2009.
At some point, for several days in October (perhaps after an iMac software update?) no wireless networks were found by my iMac, despite the fact that my PC laptop had no trouble connecting. Restarting the iMac, the router, and the cable modem didn't seem to help, but less than a week later, the connection "magically" reappeared, and worked fine for several months.
This week, I've experienced the same issue. Restarting (the iMac, the router, etc.) doesn't fix anything. Looking at the details in "About This Mac" from the Apple pull-down, under "Network" and "Airport Card", it says "no information found". Does this mean my iMac thinks it doesn't have an airport card? Does that mean the hardware has failed? (The airport icon in the top right corner is now just an empty triangle and clicking on it gives me a message that says "No AirPort card installed".)
Since the connection has not reappeared "magically", I've done some searching around for solutions. I see lots of posts related to MacBooks, but can't find a similar description for an iMac.
I'm grateful for any suggestions. Thanks for your patience with a newbie.

If you have not already, reset PRAM
http://support.apple.com/kb/HT1379
and if that does not help, reset SMC (power management)
http://support.apple.com/kb/HT3964
which is unplugging the iMac and reconnecting using a precise procedure. You should disconnect ALL cables when you do this. If you have been using a crowded or old power strip, you should connect it directly to a wall power outlet for this test. Power it up with nothing connected, except for power cord. Then add only your keyboard/mouse. Any improvement with the AirPort? If all is well, you can add back any other peripheral (USB/FireWire) devices; if the problem returns, see if one of the devices is causing the problem. USB and FireWire devices can sometimes cause interference.

IMac or Router

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