Ethernet woes.

I'm having ethernet issues that I can't make any sense of.
I'm on a macbook pro, running 10.6.4. I connect to my router via wireless, and plug into ethernet when I 'm transferring large files. In the past everything has worked fine.
Last night, my friend and I tried to connect my laptop to his laptop with an ethernet because the router was too far away. Nothing worked. When we assigned manual IP addresses, the ethernet connection said that it was connected. Network utility confirmed we were connected. But using the same settings, he could see my laptop in finder but couldn't connect, and I couldn't see or connect to his laptop.
Wifi, in the meantime, worked fine. Tried to fix the ethernet for several hours, and eventually gave up.
He's still here the next day, we plug into my router with an ethernet each and make new ethernet connections. Scrap the old ones that failed last night. Default settings, he can connect. IPv4 configured DHCP, he is assigned an IP address, he's on the internet. Default settings for me, I have a 'self assigned IP' and can't connect to anything. He can see my laptop in finder, but can't connect. I can't see him. Same as last night. If I manually assign an IP, if i use the right settings, I can get my ethernet saying that it's connected, but it's still the same. No internet. He can see me but can't connect. I can't see him. Wifi works fine. (Same as last night).
Googling suggests that others have had (lots of) trouble with ethernet and self assigning IPs. Some of them could temporarily fix the problem if they restarted. Doesn't work for me. Tried resetting router, didn't do anything. I don't have VMWare. Renew DHCP lease does nothing. Firewall is turned off. Swapping cables does nothing. File sharing is enabled. A few days ago, everything worked perfectly.
One thing I notice, I don't know if this is a clue or not: In the settings of the new default ethernet connection, IPv4 is configured with DHCP - on my computer I get an IP address and subnet mask, on his computer he gets an IP, subnet, router address and DNS server (which is the same as the router address).
If anyone can suggest anything at all, I'll be eternally in your debt...

Flynn Hogan wrote:
I'm having ethernet issues that I can't make any sense of.
I'm on a macbook pro, running 10.6.4. I connect to my router via wireless, and plug into ethernet when I 'm transferring large files. In the past everything has worked fine.
Last night, my friend and I tried to connect my laptop to his laptop with an ethernet because the router was too far away.
How far away were you? You do know that the max range for wired Ethernet without a repeater is 100 meters, don't you? If you're beyond wireless range (50-150 meters, depending on system and local environment) you may well be beyond wired range.
Nothing worked. When we assigned manual IP addresses, the ethernet connection said that it was connected. Network utility confirmed we were connected. But using the same settings, he could see my laptop in finder but couldn't connect, and I couldn't see or connect to his laptop.
What settings were you using?
Wifi, in the meantime, worked fine. Tried to fix the ethernet for several hours, and eventually gave up.
He's still here the next day, we plug into my router with an ethernet each and make new ethernet connections. Scrap the old ones that failed last night. Default settings, he can connect. IPv4 configured DHCP, he is assigned an IP address, he's on the internet. Default settings for me, I have a 'self assigned IP' and can't connect to anything.
If you have a APIPA address (self-assigned, an IPv4 address in the 169.254.x.y range) that means that your system is set for DHCP _and can't see the DHCP server_. That's why you can't connect to anything. Typical reasons for having an APIPA address:
1 beyond wired/wireless range
2 bad cable
3 bad port on router
4 bad port on computer
5 router set to use MAC filtering, and computer NIC has MAC not on allowed list
6 router set to exclude MAC on NIC for some reason
7 DNS issue
8 other software problem
9 other hardware problem.
Need more data to see what the real problem is. What router are you using, how is it configured, who did the configuring, how far away are you from it, have you tried other cables, have you tried to connect to other devices using that cable?
He can see my laptop in finder, but can't connect. I can't see him. Same as last night. If I manually assign an IP, if i use the right settings, I can get my ethernet saying that it's connected, but it's still the same.
That's because you're not actually connected. Setting a fixed IP won't do you the least bit of good if you're not actually connected, and you're not.
No internet. He can see me but can't connect. I can't see him. Wifi works fine. (Same as last night).
Googling suggests that others have had (lots of) trouble with ethernet and self assigning IPs. Some of them could temporarily fix the problem if they restarted. Doesn't work for me. Tried resetting router, didn't do anything. I don't have VMWare. Renew DHCP lease does nothing. Firewall is turned off. Swapping cables does nothing. File sharing is enabled. A few days ago, everything worked perfectly.
Possible bad NIC on the computer. Plug the cable into a different machine and see if that one connects. If it does, you may have a problem with your Ethernet on the Mac. As the NIC on the Mac is built in, replacing it may be difficult. You could try getting an external USB NIC and plugging in the cable there.
Also possible DNS issue. What's your DNS IP?
One thing I notice, I don't know if this is a clue or not: In the settings of the new default ethernet connection, IPv4 is configured with DHCP - on my computer I get an IP address and subnet mask, on his computer he gets an IP, subnet, router address and DNS server (which is the same as the router address).
Almost certainly a DNS issue. What happens if you put the DNS in? What happens if you use 3rd-party DNS, such as 8.8.8.8 and 8.8.4.4 (Google's DNS) or 208.67.222.222 and 208.67.220.220 (OpenDNS's DNS)?
If anyone can suggest anything at all, I'll be eternally in your debt...

Similar Messages

How do I add an airport extreme to a cable modem with only one ethernet port, while keeping that port connected to my Mac?

I have a mac pro connected by ethernet to a cable modem via ethernet. There is only one ethernet port on the modem.
I want to keep the Mac connected via ethernet for speed. Is there a way that I can add an airport extreme to this set up - for my ipad and roku, and for guests to use - or do I need to buy a router to put between the modem and the mac?
If I need a router, what kind?
Thanks.

The modem connects to the WAN "O" port on an AirPort Extreme router.
The Mac Pro connects to one of the three LAN <-> ports on the AirPort Extreme router.
Or if you do not need the ability to connect a hard drive to the USB port on the router, you can save a bit by using an AirPort Express.
The modem connects to the WAN "O" port, the Mac Pro connects to the LAN <-> port
Either the AirPort Extreme router or AirPort Express router will allow up to 50 wireless device to connect.
There are many other wireless modems offered by other manufacturers as well.

GPIB Ethernet/100 Performance

Does anyone have some real world peformance measurements on the transfer speeds of the NI GPIB-Ethernet/100 box. I am very disappointed in the performance of a block read which is approximately 6ms/byte transfer (tested from 20 bytes to 32kbytes block transfers). This is on a 100 Mb Ethernet. I can ping the box with 64 byte round trip transfers at ~0.7ms/packet.
I almost feel that the GPIB-Ethernet Box is not buffering my GPIB transfers.
Thanks

Actually ignore my question. My transfer speeds are ~6 microseconds/byte (not milliseconds!). This is still a little slower than I would like, but not totally unreasonable! Note the vertical axis in the included plot (pdf) is in ms, so the linear coefficient in the fit equation is 13 microseconds/(16 bit word).
Attachments:
GPIB_ENET_Plot.pdf ‏25 KB

I have a TC which is connected wirelessly to my router. I would like to connect a mac in another location via ethernet to the TC. I can't seem to get it to connect. Am I missing something?

I have a virgin Superhub which serves my wireless needs throughout the house. I have a Timecapsule which connects wirelessly to the router with no issues. I can backup my MBP over wireless easily. I have now got another machine in a different part of the house that I would like to connect to the network. It doesn't have wireless so ethernet is the only option. I have a number of options 1) run cabling - not really possible 2) buy a powerline network system or 3) use the timecapsule to connect to the network/internet.
I like option 3 because
(a) - I don't have to spend any more money and
(b) - my wife wont complain about cables also see (a)
Should using mixed wifi and ethernet clients on a timecapsule work? if so is it a feature I can use out of the box so to speak?
Thanks

Should using mixed wifi and ethernet clients on a timecapsule work? if so is it a feature I can use out of the box so to speak?
Thanks
No a TC cannot do what you want.. it is now in dumb stupid wireless join mode.. and it turns off the ethernet ports.. in case you want to use the TC as a wireless bridge to multiple clients which is plainly wrong.. (only airport express is allowed to do this since it has only one ethernet port).
Welcome to Apple. (The plainly wrong above is a figment of Apple imagination.. of strict network protocols.. but unhelpful for a home device. maybe also to encourage sales of expresses.)

Blue screen error when connecting an ethernet cable

I have a Compaq Presario 5300US desktop that I'm trying to upgrade. It has 512mb (max) of memory and a newer video card than the factory one. I installed Vista Home Basic on it with no problems. I also installed a pci ethernet card along with the Vista drivers that came with it. I checked tha card's properties in "device manager" and it said "This device is working properly". I haven't plugged in an ethernet cable to the card at this point. Everything is working OK, but as soon as I try to connect the card to my router, I get a blue screen with this message:
Hardware Malfunction
NMI: Parity Check / Memory Parity Error
*** The system has halted***
I don't get any memory errors as long as I don't try to use the ethernet card.

Hello @larrycarol99,
I understand that after upgrading your computer when you plug in an ethernet cord you get a hardware malfunction error. I am providing you with a Microsoft Support document: Hardware Malfunction Results in System Error Message that explains what causes that error and provides steps on fixing it. I am also including a link to the Compaq Presario 5300US Desktop PC Drivers page, which unfortunately does not have any drivers for your computer running Windows Vista.
I hope this helps. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Ethernet to USB adaptor no longer being recognized by my mbp

I have an older macbook pro, which is running mac os x 10.5.8. The ethernet port is broken so I have been using a mac Ethernet to USB cable because there is no wifi at my college. I got the cable to work for a while, then I unplugged it and my computer no longer recognizes it. When I used to unplug it and plug it in I would get a message by the airport symbol that said something along the lines of ( new network usb-ethernet availible, which then would allow me to go into network preferences and give me the option to connect to the usb ethernet). Now when I go to setting with the usb ethernet device plugged in I no longer get the option to use usb-ethernet adaptor, and cannot connect to the internet.
Both the cable and port have been tested and they both work. I also havn't installled any new software recently so I have no idea what I have done wrong.
Thanks for your help

Hi Dibenkorn,
Yes, both USB ports are not recognizing this lacie external hard drive. I also tried the SMC reset but that did not change anything. I have another external hard drive (smaller one) and it works on this computer fine and like I said before the Lacie works fine on my other (older) MacBook. I just can not figure out what went wrong or what happened...

HP Color LaserJet MFP M476dn - Impossibly slow ethernet

Win7 - 64 bit on typical small office network setup (Comcast internet, Linksys Router, half computers on wifi, half wired).
Upgraded from terrible old Brother multi-function printer.
We print some files from remote desktop (using redirected printers.. as in, the remote desktop session has the ability to print through our computers to our local printer).
Sometimes the files are large (10-20mb).. and the Brother printer sends it right over in about 1 second.
New HP Color LaserJet MFP M476dn goes as slow as you can imagine.. I can sit a watch the printing dialog box and watch it 256kb........512kb........768kb.......... out of 15mb.
I have tried a bunch of combinations of different drivers (PCL5 etc), link speeds on the printer, RAW processor, Port types, and so on, but can't find the right combination..
I should mention that we are using the exact same ethernet cord as the old Brother printer. Also, the HP is set to a Static IP.
Please help!
Thanks,
Eric

I had this exact problem. I've had the printer for about a month and it was very fast at first. I really like the printer, especially the duplex ability. Over the past week or so it became excruciatingly slow. I just finished downloading the new firmware and drivers but before installing them something made me check the Ethernet cable which is plugged into my Airport Extreme 802.11n Gigabit router. It was loose and partially pulled out so I plugged it back in all the way and the printer went back to printing the way it is supposed to.
You might want to give this a try. Perhaps try another Ethernet cable or direct connection via USB if that doesn't work.
Frank

How to print on HP LaserJet 2200 over Ethernet?

Hi,
I did an upgrade to Snow Leopard and would like to print on a HP LaserJet 2200 over Ethernet. OS X and the HP printer drivers are up to date now.
The printer has been cold reset and on the configuration print out there's the IP address 0.0.0.0
Now my question is how to get this printer to work with Snow Leopard over Ethernet? I did not find a tutorial how to assign an IP address to the printer first so I got stuck.
Could you give me a hint where I should start with the configuration first?

OK, now the printer works
I reset the router and checked if DHPC is running.
I reset the printer (hold down the GO button, turn the printer on and continue to hold the GO button for five to ten seconds).
Checked at router that the printer is visible as network device.
At the router I assigned a fixed IP address to the printer.
At OS X System Preferences > Printer I added a new printer with "HP Jetdirect - Socket", the fixed IP address and the correct printer driver "HP LaserJet 2200".
Now the printer has been recognized well by the system (Tray 3, Duplex and printer RAM) and printing works.
THANKS.

Printing to AppleTalk printer via Ethernet

I’ve read all the pages I could find about this topic, and several threads on this forum, and tried everything suggested but I still can’t get my Mac Mini with OS X 10.7.4 to print to my HP printer.
My hardware setup is thus: HP LaserJet 6MP is connected by its AppleTalk cable through an AsanteTalk bridge to an Ethernet hub. (There is also a DSL box connected to the same hub). The hub is connected to my Mac Mini via the Ethernet port. This setup worked fine with my old eMac with 10.3.9. The printer was recognized automatically and I did not need to do any special setup, at least with 10.3.9. I understand that Apple dropped support for AppleTalk with Snow Leopard, but is there any possible way to make this work?
I bought a Mac Mini with OSX 10.7.4, and I have connected the same hub to the Mac Mini via the Ethernet port. The DSL works fine. But I am unable to print. I have read through the following pages and tried everything suggested on these pages:
http://support.apple.com/kb/HT4670
http://support.apple.com/kb/HT4507
http://gigaom.com/apple/how-to-resurrect-your-appletalk-printer-in-snow-leopard/
What I have done to set up the printer is:
1) I have downloaded the latest HP drivers and run Software Update today, to verify that all my software is current.
2) I powered down everything and then powered everything back up starting with the printer, then the hub, then the Mac.
3) In System Preferences -> Network, I noted that it says “Ethernet is currently active and has the IP address 76.212.150.40” So I am assuming the IP address of the printer is 76.212.150.40 However I'm not sure if I'm correct in assuming that.
4) I ran Terminal and typed PING 76.212.150.40 and got a series of replies,
64 bytes from 76.212.150.40: icmp_seq=0 ttl=64 time=0.071 ms and so forth.
5)I go to System Preferences -> Print & Scan. I click the + to add a printer, then the IP icon. For Protocol I have tried all 3 options, but the last time I chose Line Pinter Daemon - LPD for the protocol, because it’s an old printer.
6) For the address I put in 76.212.150.40
7) The “Print using” field came up automatically with Generic PostScript Printer, but I chose Select Printer Software... and chose HP LaserJet 6P/6MP - Postscript.
8) I click “Add” and I get a warning message, “Unable to verify the printer on your network. It cannot be currently determined if ‘76.212.150.40” supports the Line Printer Daemon Protocol. Would you still like to create the queue?” I click Continue.
9) The next dialog box asks me to verify my printer’s options (the only one is Total Memory and I set that to “6 Mb or more” because the printer has 7 Mb of memory. I click OK.
10) The printer shows up in the list of printers. Under it says, “Idle, Last Used.” I print a test page of one sentence, using Tex-Edit Plus. The printer’s status changes to “In use” in printer list. In the Print Queue, it says that it is printing my document, but under that it says “The printer is busy.” And it stays like that.
I have tried deleting that printer, and adding it again with all the above steps. I have also powered down the whole system and started up again. Now it says, “The printer is not responding.” and if I turn the printer and hub off and then back on again, I am back to “The printer is busy” message.
Is the problem here that I am trying to still use AppleTalk or LocalTalk? Besides the LocalTalk port, the printer also has 2 parallel ports (a B-type and a C-type) and an infrared port that I have never used. Would a parallel-to-USB cable or adapter solve this?
Is the problem that the DSL is interfering with the communication between the Mac and the printer? Is the problem with OSX 10.7.4? Or did I make a mistake in the setup process?
Is there a solution for this or will I have to buy a new printer? The printer still works fine and worked well with 10.3.9. I would hate to just discard the HP LaserJet because it is a workhorse that has printed over 120,000 pages for me and still seems perfectly useable.
Thanks for any help or suggestions.

BADD wrote:
Matt
You suggested earlier that "The only way you can print to an AppleTalk printer from OS X 10.6 or later is if the printer is a shared printer running on a Mac running OS X 10.5 or earlier.
I am using a Macbook Pro with 10.7.4 and like Bob Weaver, I have tried all of his methods as well. What is the set up as you describe above. I have an old HP laserjet 5m with the Directjet.
To be absolute about things, I should change that wording to indicate AppleTalk only printers need to be shared from a Mac running OS X 10.5 or earlier.
You have a JetDirect card that allows for other connections/protocols other than AppleTalk.
I am trying to use it with my mac using an ethernet cable. I cannot ping it, I cannot see it but my ethernet shows its connected with the green light. The HP is a work horse and I would hate to turn it into a door stop. Iv'e printed the config sheet and have entered the IP address with no luck.
I cuurently use a Netgear Wireless Router/Modem and have tried using its ethernet ports as well but I continue to have no luck. Can I print to this thing or is it a paperweight
You appear to be on the right track here, but you appear to need to make some changes to the JetDirect setting to use it on your network. I have never worked with a JetDirect card, so I cannot give you all the specifics. Bob Weaver's post will probably be of more help than my outline. You may also want to search the Apple Discussion boards a bit more -- especially the OS X 10.6 archives. There were a lot of posts regarding switching over from AppleTalk to network cards.
The basics are:
1. Set the JetDirect card to use a routable address that your router can use. You can look at the router's configuration to get the expected range of addresses and the gateway address for the router. You will also need to pay attention to the subnet mask to make sure the two devices are on the same network.
2. I generally recommend that you reserve an IP address on the router for the printer. You will need the JetDirect's MAC address to do this. The benefits of setting a static IP address for the printer is that you can power down the printer assuming it will hold the set address. This saves a lot of time and headaches.
3. When you configure the printer with the static IP address, subnet mask, and router gateway, be sure to turn off the option for it to get its address using DHCP. That is, you don't want the printer to get a new address from the router every time you power it up or down.

Continual Mac woes (no question, just a rant)

It's Tuesday, and I am having terrible problems with my Mac. But then, why should Tuesday be different from any other day of the week.
Here is a typical day for me. The computer appears to be working OK. I need to watch a DVD for my work. I turn on DVD player, and put one in. The machine can't read the disc. It clicks and whirls, but the icon does not show up on the desktop. Meanwhile, so distressed is the machine that it freaks out. What was up until now was a fluidly operating machine suddenly reverts back to its old ways (i.e., its ways of two days ago). The hold ups and spinning pinwheels begin to eat of hours of my work day. (Remember the old days when computers made life easier?) The machine becomes sticky, gummy. Oh, I can move the curser and it seems to work for a second but then gets stuck in the dock, which explodes in icons and then freezes for five minutes. Yes. Five minutes.
Would love to use Force Quit, but the cursor is spinning, and nothing is responding. Funny about that old Mac. You can't force quit Force Quit. I guess I need to leave it open all the time.
Of course, FQ usually works on Safari. I have never just "quit" Safari. It always requires Force Quit, otherwise I can't turn off my computer. It stalls shut down.
Now I have a DVD trapped in there and can't get it out. [But I just got an answer from another posting.]
In the old macs, there used to be a pin hole you could stick a needle into ... can't find one on my flatpanel iMac.
I bought my Apple flat panel iMac in August of 2002. Yes, I know that that is a long time to have a computer, but I am not rich nor attached to a corporation that can splurge on computers. The first weekend I had the machine, I had three kernal panics.
Among the other problems I have documented are the following: the dock hiding itself unbidden and other features checking and unchecking themselves (Aug 2002); bus errors connected with OS 9 (Sept); some problems that inspired the tech person (Eric)) to talk me through deleting my user i.d., resulting in the loss of two months worth of e-mail (Thursday, 12 September); Preview problems (September); a bizarre box with an unmovable and undeletable red stop sign in it that no tech person or other Mac user I know had ever hear of (Monday 30 September); printing problems; computer won't shut down, numerous disconnection errors, which turned out to be caused by an OS X update (beginning December, 2002, or later); Kernel panics (Feb); computer won't shut down (March); Faxstexx problems, program won't allow me to set it up, finally just deleted the software (April); keys like "V" freeze and repeat endlessly (May 21); DVD Player freezes (May); Safari and Mail begin quitting unexpectedly (May); cursor begins to blink and fade out, plus odd sounds come out of the speakers, a constant error beeping (Sept 9); DVD Player problems (Oct 4).
I called AppleCare while I had it about once a week (the total between August 2002 and the time it ran out was about 155 calls). Naturally, some of these calls are motivated by user error. On the other hand, many of the issues I have called about were unprecedented as far as the Tech person was concerned, such as the blinking mouse, the red stop sign, and the DVD Player woes.
Things improved with Panther, but in Tiger many of the same old issues have returned.
I have been having so many problems with my Mac that I once wrote a letter to the company asking when do I qualify for a new replacement machine. I never received an answer, but I felt better for about a day. Then I turned on my Mac again.

The spinning ball of death as we used to call it is often caused by a lack of RAM, it is hard to be sure as I am not working on your machine, but sometimes things can be improved with additional RAM, it makes it seem like a whole new computer.
A lot of your problems sound like stuff that can be fixed easily enough, and although frustrating things happen here and there with updates. It sounds like you are in fairly good spirits with it all, I would suggest just researching a bit more into maintenance you can do to help maintain the computer and educate yourself a bit more (sounds like you already have learned quite a bit along the way) and you will find a lot of these issues take you a few seconds to rid yourself of. I would start by making sure you are repairing permissions regularly and running the most up to date software. If a lot of problems persist, try creating a second user that is a "test" user to see if the problem is replicated on that user (don't delete your other one, but if you do find the problem not on the other user, you might have a corrupt user, however you don't have to lose all your emails there are plenty of ways to back it up and import it in, or even just bring the entire Mail folder from your library over to the new user). Another thing you can do if you find a lot of system problems is archive and install the OS, it takes a bit of time, but doing it overnight shouldn't be an issue, and you won't lose any of your stuff.

Powerbook G4 can't connect via ethernet but connects via airport

We have a small office network connected to an Efficient Networks DSL router that's managed by our isp. The router has 4 ports and a linksys 8 port switch is connected to one of those ports. Another D-Link wireless router/switch is connected to another port.
2 i-macs connect without problem via ethernet cable. They are set to DHCP and get 192.xx private addresses. Both run 10.4.5. Another older imac running 9.2.2. also has no problems.
I recently purchased a powerbook G4 and it will not connect via ethernet to the Efficient networks router. At first it was connected to the linksys, so decided to connect it direct to the Efficient Networks router. With DHCP, it acquires a 169. internet address which is self generated (i.e. no real connection). I tried to give it a static private address (talking to the isp provider). They could see the powerbook but saw all zero's (presumable mac address). By the way the Powerbook works perfectly at home connected via ethernet cable to a D-Link router connected to a cable modem so it's not a physical problem. I even checked the ethernet cable I used in the office with another computer - no problem.
When I switch to airport in the office, the powerbook connects to the network and the internet. I get some strange warning messages showing the server's and the router's private ip addresses. I click ok, and the powerbook finds an unassigned private ip address. It's the only way it will work, but it causes problems, because I can't connect to one of the network printers. Speed also isn't great.
Can anyone give me advise how to proceed. I am no expert on this stuff so keep it as simple as possible.
Tks

Tim,
Thanks for your help. Here's what I've done before reading your e-mail. The D-Link DI-524 wireless router is connected to the Effiicent Neworks DSL router as you mentioned. One ethernet port of the EFF.Net. router is connected to the WAN port of the DI-514.
Because I have a D-Link router at home which works flawlessly with my powerbook, I decided to connect the ethernet cable of the powerbook to the D-Link which has 4 ethernet ports. Lo and behold, the powerbook acquired a private ip address and connected to the LAN and internet!
When I connected the powerbook direct to the Efficient Networks router, it could not communicate. I believe that there must be some software incompatibility between the powerbook and the Efficient Networks router. By connecting to the D-Link, the D-Link assigned an ip address to the powerbook, and it could connect to the server, lan, etc..
Only problem is that I have a Brother network printer that cannot connect to the powerbook. My powerbook cannot find it on the network. Because there is a linksys switch connected to the efficient networks router's third ethernet port, maybe as you said, going through the D-Link via DHCP (when the Linksys is also acting as a DHCP server, might cause this type of problem. What do you think?
As a final note, other imac G5's connected to the linksys switch (which then connects to the Efficient Network's router) have no problem connecting to the lan or internet and have no problem connecting to any of the printers. When I put the powerbook on that switch, I could not connect to the internet - i.e. whether connecting via the lynksys switch or direct with the efficient networks router - same results: no internet connection whether manually or via DHCP.
So the imac G5 has no problem with the efficient networks router but the powerbook G4 hits a brick wall. The G4 likes the D-Link router. I am concerned (and I will have to check this) that if I turn off the dhcp server feature from the D-Link, that whatever software issue crops up between the powerbook and the Efficient Networks router, will rise up again, because the D-Link will act like a simple switch (just like my linksys switch), and we'll be back to square zero. In any case, no harm in trying. This may be the cause of the Powerbook not seeing that Brother printer (even though it sees another printer and other macs).
Having spent hours reading about network problems, I think it's safe to say that macs have problems with certain routers. Why a G5 works and a powerbook G4 doesn't is beyond me, but clearly software must play a role.

In my small office ethernet network all of a sudden one of my imacs cannot be connected to. It can connect to all other computers and can access internet, but as soon as someone tries to connect to that mac, it disconnects from the network. Any ideas

I have a network of 9 macs that connect via ethernet and a router. All of a sudden one of the macs cannot be connected to. It can connect to all others and the internet, but no one can connect to that one. I have appletalk active and file sharing on, but everytime someone tries to connect to it, it is not on the network. Additionally, the personal file sharing keeps turning off even though I have it locked. Any ideas?

Hi orangekay
not sure where you got the idea that I have
bizarre encrypted filesystem plugins and scripts you have manipulating them all the time
because I do not have any such running, just normal Applescripts that do tasks that could be done by hand.

Format an Ethernet Connected External Drive from PC to Mac System

Hi there, apologies for my ignorance however after suffering Windows PCs for 35 years I have finally changed over to 2 iMacs and loving it.
I have a new model WD 1 TB (MsDOS formatted) external drive attached to my router via ethernet.
My iMac (imac7,1 a running OS X 10.5.2) recognises the external drive as a "PC Server" fine and I can access it from Finder and copy files to it.
Unfortuneately NEITHER Disk Utility nor Timemachine recognises its existance.
I believe I may have to format the drive for the Mac system. However how can I do this if Disk Utility does not recognise it as a drive? Is there some utility available that allows me to format an Ethernet attached PC drive to the Mac system.
Thanking you in advance

Time Machine can't use a NAS drive even if it's formatted with a GUID partition map scheme and HFS+ Journaled. Apple dropped support for network drives before they released Leopard last year.
Apple does support their own Time Capsule device and network backups to Leopard Server running Time Machine Server.
There's not much point in formatting the drive at all if you ever plan to be able to connect to it with a PC.

No ethernet in windows 7 on mac mini (late 2014)

Hi.
I bought the new mac mini and installed windows 7 64bit but no ethernet driver...
any advice?

From the same iFixit guide, this is your WiFi card...
Broadcom BCM4360KML1G 5G WiFi 3-Stream 802.11ac Gigabit Transceiver
You should look at the Bootcamp drivers, because they already have BMC43xx drivers which support 802.11n a/b/g/n/ac. The Late 2013 rMBP for example supports it.
From the 2013 rMBP teardown...
Apple's go-to provider of 802.11ac support is again at work. The Broadcom BCM4360 on this AirPort card enables operation on the 5 GHz band at speeds up to 1.3 Gbps.
I suggest you try this.

Can i use imac's internal CD/DVD drive to install windows 8.1 pro on macbook via ethernet or firewire or other than purchasing an external drive??

can i use imac's internal CD/DVD drive to install windows 8.1 pro on macbook via ethernet or firewire or any method other than purchasing an external drive??

Note: These types of discs or activities are not supported by DVD or CD sharing:
DVD movies.
Audio CDs.
Copy protected discs such as game discs.
Install discs for an operating system such as Microsoft Windows (for use with Boot Camp), or Mac OS X.
Burn a CD or DVD

Ethernet woes.

Similar Messages

Maybe you are looking for