Wireless networking freezes periodically

I have a D-Link DI-614+ wireless router, which works fine with my windows and linux machines. With my new MBP, I am encountering periodic 'freezes' on the network, usually for periods of 5-10 seconds. When I ping my router the behaviour is clearly illustrated, as shown below:
ciaran-lees-computer:~ ciaran$ ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1): 56 data bytes
64 bytes from 192.168.0.1: icmp_seq=0 ttl=127 time=1.934 ms
64 bytes from 192.168.0.1: icmp_seq=1 ttl=127 time=1.950 ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=127 time=1.947 ms
64 bytes from 192.168.0.1: icmp_seq=3 ttl=127 time=1.921 ms
64 bytes from 192.168.0.1: icmp_seq=4 ttl=127 time=1.924 ms
64 bytes from 192.168.0.1: icmp_seq=5 ttl=127 time=1.931 ms
64 bytes from 192.168.0.1: icmp_seq=6 ttl=127 time=1.927 ms
64 bytes from 192.168.0.1: icmp_seq=12 ttl=127 time=1.944 ms
64 bytes from 192.168.0.1: icmp_seq=13 ttl=127 time=1.947 ms
64 bytes from 192.168.0.1: icmp_seq=14 ttl=127 time=1.949 ms
64 bytes from 192.168.0.1: icmp_seq=15 ttl=127 time=1.933 ms
64 bytes from 192.168.0.1: icmp_seq=16 ttl=127 time=1.895 ms
64 bytes from 192.168.0.1: icmp_seq=17 ttl=127 time=1.916 ms
64 bytes from 192.168.0.1: icmp_seq=18 ttl=127 time=1.951 ms
64 bytes from 192.168.0.1: icmp_seq=19 ttl=127 time=1.919 ms
64 bytes from 192.168.0.1: icmp_seq=20 ttl=127 time=1.939 ms
64 bytes from 192.168.0.1: icmp_seq=21 ttl=127 time=1.898 ms
64 bytes from 192.168.0.1: icmp_seq=22 ttl=127 time=1.978 ms
64 bytes from 192.168.0.1: icmp_seq=23 ttl=127 time=1.901 ms
64 bytes from 192.168.0.1: icmp_seq=29 ttl=127 time=1.926 ms
64 bytes from 192.168.0.1: icmp_seq=30 ttl=127 time=1.943 ms
64 bytes from 192.168.0.1: icmp_seq=31 ttl=127 time=1.892 ms
64 bytes from 192.168.0.1: icmp_seq=32 ttl=127 time=1.947 ms
64 bytes from 192.168.0.1: icmp_seq=33 ttl=127 time=1.934 ms
64 bytes from 192.168.0.1: icmp_seq=34 ttl=127 time=1.926 ms
64 bytes from 192.168.0.1: icmp_seq=35 ttl=127 time=1.940 ms
64 bytes from 192.168.0.1: icmp_seq=36 ttl=127 time=1.923 ms
64 bytes from 192.168.0.1: icmp_seq=37 ttl=127 time=1.897 ms
64 bytes from 192.168.0.1: icmp_seq=38 ttl=127 time=1.930 ms
64 bytes from 192.168.0.1: icmp_seq=39 ttl=127 time=1.941 ms
64 bytes from 192.168.0.1: icmp_seq=40 ttl=127 time=1.891 ms
64 bytes from 192.168.0.1: icmp_seq=46 ttl=127 time=1.937 ms
64 bytes from 192.168.0.1: icmp_seq=47 ttl=127 time=1.930 ms
64 bytes from 192.168.0.1: icmp_seq=48 ttl=127 time=1.950 ms
64 bytes from 192.168.0.1: icmp_seq=49 ttl=127 time=1.945 ms
64 bytes from 192.168.0.1: icmp_seq=50 ttl=127 time=1.941 ms
64 bytes from 192.168.0.1: icmp_seq=51 ttl=127 time=1.941 ms
64 bytes from 192.168.0.1: icmp_seq=52 ttl=127 time=1.943 ms
^C
--- 192.168.0.1 ping statistics ---
53 packets transmitted, 38 packets received, 28% packet loss
round-trip min/avg/max/stddev = 1.891/1.931/1.978/0.019 ms
ciaran-lees-computer:~ ciaran$
If anyone else has experienced this problem and come across a solution I would be very grateful!
Kind regards,
Ciaran

Hmmm, supposedly they fixed this already...
http://docs.info.apple.com/article.html?artnum=303568
I wonder if reducing the MTU or ACK would help?
iirc, 1472 is the max suggested size for Pinging.
Default is 1, but might try...
sudo sysctl -w net.inet.tcp.delayed_ack=0
In Terminal.

Similar Messages

Wifi freeze! MBP will freeze entire wireless network on "join network"

This took a quite time to prove. My MacBook Pro on connecting to WiFi or on renewal of IP via wireless will freeze entire LAN (cut off) all other devices! And of course it will not connect it self. I think it would work if a static IP assigned. Now one will say that is the Router. Not likely, tested with 3 routers always same issue. Must say this was not always like this. A few months ago just randomly disconnecting some devices on network but the MBP stayed connected or just needed restart.
For those who are interested in this trouble, and perhaps learn for future references some background info. Entire LAN is about 20 devices, 8 wireless. From Windows PC, Linux box, LAN attached DVD player, printers, 4 Apple devices and 3 Andriods. All work just fine if this MBP is not turned on. I do work with computers quite a bit but never have seen this. that a computer on the DHCP requests will freeze the router! I would like to know if anybody out there ever had the same problem.

Have you contacted your Internet Service Provider? They may have throttling and might be disconnecting you unintentionally when they begin throttling you.

HP L7780 Freezes up after new wireless network

This printer was working fine as a copier/fax for several months until we decided to add as wireless printer. After setting up the wireless network, the message appears that it was connected successfully. Then it freezes. No button does anything. Unplugging it and allowing it to restart only produces the same - frozen. I've followed other advice on this forum to unplug router, reset network settings, etc but as soon as I reconnect the router and re-do the wirelss setup, it begins again. Frozen. Resetting the network settings allows us to continue to use as copier and fax but we would really like to get this set up as a printer.

Hello , and welcome to the HP Forums.
I see you are having printer issues. There is an update I would love to try and help you with, but I do need a little information first. I am linking a few HP Support documents below that will show you how to find which operating system you are using. Also, if you're using Windows, please include whether your operating system is 32-bit or 64-bit. With this information we can provide you with accurate information.
Mac OS X: How Do I Find Which Mac OS X Version Is on My Computer?
Which Windows operating system am I running?
Is the Windows Version on My Computer 32-bit or 64-bit?
Please let me know what you find. Thanks for posting on the HP Forums.
Please click “Accept as Solution " if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks" for helping!
Jamieson
I work on behalf of HP
"Remember, I'm pulling for you, we're all in this together!" - Red Green.

Periodically loose visibility to wireless network

Peridically, I loose visibilty to the wireless network. I have another computer using the same network where this does not happen? This happens on a laptop which does connect to multiple networks in its trouble.
Not sure why but the problem goes away when I restart the computer?

access the router using http://192.168.1.1 ... Keep the username blank and password is "admin" ..
try changing the wireless settings on the router
change the channel - 1 or 11
change the advanced wireless settings
beacon interval - 50
fragmentation & RTS - 2304
if it still does not work , then try updating the drivers for the wireless card on the laptop ..

HP Officejet 6000 E609n stops printing periodically on wireless network

I have a Dell laptop with 64 bit Windows 7 on our wireless network. I recently installed this printer on the network. It will print documents I send to it, and then suddenly subsequent documents pile up in the printer que and have "error" listed beside the document names. When I troubleshoot this problem from the printer window, it cannot resolve the problem. The blue wireless light is not on, and pushing that button does not turn it on; I can fix it, by unplugging the printer and plugging it back in, then the blue wireless light comes on, and it prints all the documents in the que, and will continue printing new docs sent over to it for a while, and then suddenly they pile up in the que, and it will no longer print until I unplug it. Could a firewall be the cause or what? I get no messages from the printer telling me that the document failed to print.

I have thesame problem with my c6180
I have to re download the driver. then it works fine foe a while and quits. i redown load the driver and again it works for a while.
if this keeps up i will never buu an HP again
Ted

How do I include my Airport Express with my base Airport Extreme to extend my in house wireless network??

How do I set up wireless network extension/expansion adding Airport Express to existing Airport Extreme Network??

OK, thanks for the clear information, this really helps.
Locate the AirPort Express about half way between the AirPort Extreme and the general area that needs more wireless signal coverage. The more that you have line-of-sight between the AirPort Extreme and AirPort Express, the better the performance will be.
Power off the AirPort Express for a few minutes
Hold in the reset button firmly...and keep holding for an additional 10 seconds while you simultaneously plug the power cord back into the back of the AirPort Express
Release the reset button after the hold period and allow a full minute for the Express to restart to a slow, blinking amber light
This process is tricky.....you almost have to have 3 hands to do this.
If you have an iPad or iPhone, the setup is almost too easy to be true. In that case.....
Tap on Settings (gear icon) on the home screen
Tap on WiFi
Under the heading of Setup a New AirPort Base Station....
Tap on AirPort Express
The utility will analyze things for a minute, then suggest that the Express be configured to extend the AirPort Extreme network
Type in a device name that you want to use, then tap Next
The utility will set up everything for you automatically. When you see the message of Setup Complete, tap Done and you are good to go.
If you want to use the Mac running (10.6.8) for the setup.......
Make sure that the wireless is turned on at the Mac
Open Macintosh HD > Applications > Utilities > AirPort Utility
Select the AirPort Express and click Manual Setup
Click the Base Station tab under the row of icons
Enter a device name for the AirPort Express
Enter a device password for the AirPort Express
Verify the device password
Adjust the Time Zone setting
No other adjustments are needed here
Click the Wireless tab below the icons
Set the Wireless Mode to Extend a Wireless Network
Click on the Wireless Network Name box and your AirPort Extreme network name should appear as a choice. Click to select that....or manually enter the exact name of the AirPort Extreme wireless network
Make sure that Wireless Security is set to use WPA2 Personal
Enter the wireless network password for the AirPort Extreme
Verify the wireless network password for the AirPort Extreme
Click Update at the lower right of the window and wait a full minute for the Express to restart. A green light on the Express at this point will be a very good sign that things are up and running correctly.
Your Mac will automatically select the AirPort with the best signal quality. If you have an iPhone or iPad, you may need to manually turn off the WiFi when you move the device near another AirPort, and then turn WiFi back on to get the iOS device to connect to the best signal.
Good luck, please post on your results with the method that you choose.

How to Connect Airport Express to Existing Wireless Network (Client Mode)

I am posting this for everyone tearing their hair out trying to connect the Airport Express to your own existing home wireless network. After spending 2 hours last night installing this on my father-in-law's home network, I hope to be able to save someone else the agony we went through.
So here's the situation:
Say you already have your own home network set up, and all you want is to be able to use AirTunes to play music off iTunes into your speaker system. And, you don't need the printer sharing capability nor creation of another wireless network (2 of the features of Airport Express). Then this solution is for you - read on.
Unfortunately, Apple's user manual is very unclear how to connect Airport Express to your own network. When you look at the picture diagram they provide, they show Airport Express picking up its signal from another Apple-oriented base. This can make you think you need to buy another piece of hardware to make it work. DON'T If you read through the manual, the Support section here, etc., you will hear lots of talk about "Client Mode" - and that this is the only way to get it to work. Nice - but no one really tells you how to set up the Airport in client mode.
Do yourself a favor, toss that user manual aside and run these steps.
(Note: These directions assume your DSL/Cable Modem is hooked up to a wireless router or acts as its own wireless router)
1. Get a cat5 Ethernet cable (anything but an orange cable - that's a crossover cable) like you would use to connect your PC to your router to pick up the Internet.
2. Connect the Ethernet cable to the router on one end, and to the Airport Express unit on the other end.
3. Plug in your Airport Express unit to the wall (this will not necessarily become its permanent location - you will be able to move it later). The light will glow solid Amber for about 30-45 seconds while it starts up, then blink Amber. At this point, the unit is ready to operate.
4. Install the CD to the PC where your iTunes music is stored. This should be painless. Once you open the program, it should detect the Airport unit.
5. At this point, the on-screen wizard will present you with your options, and walk you through the setup. This is much like the user manual describes - and you should be good to go form here forward.
Some pointers:
- When asked if you want to create a new network, join an existing network, or connect via Ethernet, choose the middle option for joining an existing network. You will need to know the name of your network, the password to connect to the network (if present), and the type of encryption used on the network (e.g. WEP, WPA, etc.). Side note, WPA is recommended, as it is a higher level of security than WEP. You will be able to configure the Airport Express unit to automatically login to your network.
- I would recommend, when creating a password for the Airport Express unit, use the same password as your network, to avoid confusion.
6. The very last step will ask you to save the settings to the Airport Express. Here's the kicker - when you save the settings, you are TRICKING the Airport Express into no longer acting as a network broadcaster, but instead being a "slave" to your own network. What do I mean? You will lose the connection from your PC to the Airport Express - an error message will pop up telling you the unit can no longer be found. While you might think you did something wrong, you actually were successful!
7. Unplug your Airport Express, and disconnect the Ethernet cable from your router and the Airport unit. This will no longer be needed.
8. Go to your desired location where you want to plug in your Airport Express unit. Before plugging it in, connect your Audio cable from the Airport Express to your audio receiver. Once that is connected, then plug in the Airport Express unit. The light will glow solid Amber for 30-45 seconds while it loads, and then will blink Amber for a brief period of time before turning solid GREEN. When this happens, you have successfully connected the Airport Express to your home network!
9. Go back to your PC with iTunes. Open the Airport software - you should now have a listing for your Airport Express unit in the upper left. Click on this, and the wizard will guide you through connecting - you will need the password you created for the unit. You only need to go through this wizard once, and when finished, the software will tell you that can now use iTunes with your Airport unit.
10. Open iTunes. On the lower right, you will see a dropdown for Speakers, and it should be defaulted to My Computer. Click on that drop-down, and you will see the name of your Airport unit. Click on that name, and now your music will broadcast to the Airport unit!
11. Play a song in iTunes. Go to your audio receiver, and connect it to the channel for your external connection to the Airport Express unit. You should hear your music from iTunes. CONGRATULATIONS! =)
I hope these instructions were helpful - I am happy to answer any questions, so feel free to contact me, *******************@*****.**.
<Edited by Moderator>

Thanks for the detailed directions. You are absolutely correct in stating that people should toss the user manual; it's pretty worthless. I have had a problem setting up my new Airport Express as I have described in an earlier post - http://discussions.apple.com/thread.jspa?threadID=1839873&tstart=45
One quick question - does using your setup process set the AE up as part of a distributed network where the AE is acting as a wireless router where it is extending the range of your network? Or, is it simply a wireless connection to your stereo for iTunes? I am interested in having both, since my AE will be at the other end of the house from the main wireless router.
Thanks

Can not connect to wireless network any more, missing command

I can not connect to any wireless network. I have been having this problem for days. In desperation I installed 10.4 in a seperate HD. I clicked on the airport icon in the upper tool bar, selected my network name and clicked on "open internet connect" and I was connected, what?? I rebooted into 10.5 and tried the same thing again. But the panel that opens when you click on the airport icon has NO "open internet connect" command. A couple of weeks ago I reinstalled my OS. I have run diskwarrior and Techtool pro. Thinking back to the time I first installed 10.5 I don't remember ever seeing that command. Is Leopard compatible with the airport card? How do I get my "open internet connect" command back??

It sounds like a problem between hardware and software. When you select your network, does anything freeze or does nothing happen?
Nothing happens.
Try this, open your Network Preference Pane, turn off airport off and delete the Airport connection by selecting "Airport" in the left pane and click the " - " button. Click on the "+" sign and create a new Airport connection. Hit Apply if it is available. Turn AirPort on and try to select your network and login if you can. The status should show Connected and an IP address should show up after of a couple of seconds.
I get "AirPort has a self-assigned IP address and may not be able to connect to the Internet". On a couple of occasions (over the last couple days) I got you are connected to the internet on IP 172.17.90.251. However when I tried to open a web page I got the banner you are not connected to the internet. Strange, the pref panet said I was the Safari said I was not. Certainly the IP address does not show up in a few seconds. I also have ComCast cable but I need to use the MetroFi-Free wireless so my wife has the bandwidth to do her company work using VPN.

Cannot see any Wireless networks

After installing the latest security update for 10.3.9, I can no longer see any wireless networks. I have tried reseating my airport card along with unpluging the antenna with no luck. I have also repaired permissions and trashed the Network Interface preference file, again nada. Another suggestions would be greatly appreciated.
I have a relatively new Airport Express base station at home and I have also tried testing the connection at several wireless hotspots.

I had the same problem and that's why I ventured here for the first time after an hour's battle this morning.
My solution: restart the computer. Just when the menu has gone out of sight, you get the Keychain pop-up box informing you that the airport application has been changed and whether you wish to allow Keychain access to this new version as well. Here's the tricky part. You must react within 1 (one) second to the pop-up screen and click the "always allow"-button. Once the computer has rebooted, you should have access to your Airport network once more.
Clunky? Yes. With me, the problem was even more bizarre. I could see my trusted network in the Airport drop-down menu but even if the computer seemed to connect to it, I couldn't get an IP. Sometimes the whole upper right corner icon bar would freeze if I tried connecting.
Puzzling? You bet. I'm rather perplexed as to why I couldn't just solve this problem by removing and re-adding the Airport Keychain entry with the new version. I can only conclude: thank you, Apple, for making patches that work.
Experienced people: how do I relay my bug report to Apple?
iBook G3 Mac OS X (10.3.9) Airport + extra RAM

No longer detetects any wireless network

Hi
My macbook was correctly connected to the Internet via my wireless network, and then it suddenly disconnected. It no longer detects any wireless networks (and there are quite a few usually!)
I tried to turn airport off & then back on, but no change.
I then tried to reboot my macbook, but no change either.
When it searches for wireless networks, it is very slow (sluggish).
I also booted on Windows 7 (dual boot), and it has *exactly the same* problem. Leads me to believe that it is a hardware problem, more than a software one..
The only recent change: I moved from the UK to France few days ago => new ISP & new router (but I doubt this could be the source...)
Is there anything I can do?
Replace the wireless card?
Thanks

By the sounds of it, I've been having exactly the same problem. I will be using my macbook and suddenly the airport will drop out for no reason. Sometimes I can reconnect but often I'll have to try a dozen times or more, with the connection timing out each time. I've actually set up two differently named wireless networks at home to solve this - for a while, if one dropped out, I could reconnect to the other one. Even this has now stopped working. I've tried flicking airport on and off, restarting the airport base stations, I even have one of the wireless networks configured as WDS sending to an airport base station within a couple of metres of where I normally use my machine. Nothing works. I've tried deleting ~/library/preferences com.apple.internetconfig.plist and com.appleinternetconfigpriv.plist and rebooting - for a few times that would fix it, but not any more.
The strangest thing, though, is that if I switch user accounts, I can access the wireless networks again no problem.
It's almost like there's something that needs flushing in the user account's wireless settings - a buffer, or a cache, or something. It'll generally only happen once I've been using the machine for a sustained period of time.
I'm running 10.5.8 with Wireless Card Type: AirPort Extreme (0×168C, 0×86) Wireless Card Firmware Version: 1.4.16.2 if that's of any help to anyone.

Airport no longer connects to OPEN wireless networks

Lots of people seem to think that their airport keeps dropping the connection to OPEN wireless networks because of the 2008-001 airport update. That is probably only true for a Macbook 2,1 (aka Macbook Core 2 Duo).
I had the issue on my Macbook 1,1 (aka Macbook Core Duo). I wiped the system clean. Re-installed OS-X. Applied all updates BUT:
1. Airport 2008-001
2. Security update 2008-002
I also downgraded the Airport firmware to 2007-004 (aka version 1.1.9.3).
Technically speaking this should have resolved the issue but it didn't.
Why do I believe it should have resolved the issue? Because the same approach worked on the Macbook 2,1 and they both have the exact same Airport card.
Now I have no idea how to get it fixed - I think I have tried every possible way. There doesn't seem to be any way to contact Apple coz I don't have a support contract.
But hey, do I need a contract? Apple broke this for me ... they should fix this. I am about to post this as a tech article on engadget and other places because there are SO many people suffering from poor testing on Apple's behalf.
Apple, please respond.
Thanks.

Visited the "genius" bar this afternoon - what a trip!! The guy said this is a Verizon issue, period. I was like you must be kidding, there are SO many people out there who got affected and not everyone uses verizon ... he actually got pretty mad and said you should be using mac hardware (router) and secure network. I even told him my second Macbook is working fine on the same Verizon network. This is their new location in the Northern VA area at Fair Oaks Mall.
I would call that guy anything but a genius, what a waste of time. This was my first and last trip to a "genius" bar.
If anyone comes across any new ideas, please share.
Thanks.

HP Laserjet CP1025nw keeps disconnecting from wireless network

I just purchased this printer yesterday and have had no luck getting the wireless network connection to stay connected for longer than a few minutes. Currently it's connected to my cisco router via ethernet and works great connected that way. I can AirPrint from all my IOS devices and from my Macbook Air and Windows 7 laptop.
I am able to get the printer to work on wireless for a short period of time - roughly 10 minutes or so. I have sent test prints from my IOS devices as well but eventually the blue wireless light on the printer begins flashing and that means it has lost it's connection. Restarting the router and printer will get the wireless back online for a few minutes and the problem comes back. I read somewhere that power cycling is a "solution" but I don't agree.
Now, I suppose I could leave it plugged via ethernet cord, but I specifically bought this printer for it's wireless printing capability and would have liked the option of moving it to another location away from my router if need be. It should work as advertised in my opinion without having to reset/power cycle anything on a regular basis.
My dad bought the same printer as it was on sale. He has asked me to set it up but hopefully he hasn't opened his box yet. I know he is hoping to use the wireless function due to the spreadout floorplan of his home office.
I have updated the firmware on the printer (and router) to the latest version and set a static IP address as well. DHCP yielded the same results. Following some advice on this forum I have even disabled SNMP though I don't think that would be the problem.
Any thoughts? Is HP even planning on providing future support in the form of firmware updates now that the printer is a pretty much a clearance item?

Hi hp_ik
I understand the printer keeps losing the network connection.
I will be happy to assist you with this.
I have provided a document for the printer not maintaining a wireless connection.
I would setup the static IP for the printer to see if this will resolve the issue.
It may not be the printer, it may be your router's inability to wake the printer.
What router are you using?
Can you get into its settings?
If you can then look for and enable "Multicasting".
If not you will have to contact the router company.
Disconnect the routers power cable, wait 10 seconds, then reconnect the power cable. Wait till it's ready.
As a troubleshooting step, try connecting the printer to the router via an Ethernet cable (cat5). This is just to find out if the printer and the router are having problems communicating via wireless.
If you need more assistance just let me know.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

HP 3520 All-in-One Printer Falls Out of Wireless Network Periodicially

We have an ongoing problem with our HP 3520 All-in-One Printer. We set it up for wireless printing and it works....for a while. Periodically, we find that it falls off the wireless network and will not print except when plugged into the USB cable. The problem is that my husband has an Ipad Air as his main device which he cannot plug into the printer and needs to have wireless working...and the main reason we bought this printer was to have wireless capability. We *think* that it may be falling off the network when we have a brief power outage or Internet outage, which happens occassionally for a short time. Also, on my laptop, although the wireless set-up to this printer has worked in the past, now I see that I can either connect my laptop to the Internet network OR the printer, but not both at the same time. How strange is that?
I have printed out the Wireless Network Test Results AND the HP Network Configuration Page, in case that information can be useful as we attempt to troubleshoot this problem.
Note that the printer is no longer under warranty.
I have reviewed numerous HP product support pages and feel as if I am running in circles. The help information is confusing to us and we have spent so many hours trying to troubleshoot this issue that my husband has completely given up on that printer and I am doing my best to try to save it since it is only about a year old.
We appreciate any help you can give us to remedy this ongoing problem.
PSCo

Hello there PSCo, Welcome to the Forums! I hope you enjoy your experience
I saw your post about your Deskjet 3520 dropping the network connection. It very well could happen if the power goes out or Internet disconnects. I have found a troubleshooting guide that is geared to help repair the wireless connection disconnecting. It will go further into detail about the causes and things to do to help.
I hope the steps work for you!
Printer Does Not Maintain Wireless Connection
Thanks for posting, enjoy the rest of your day!
R a i n b o w 7000I work on behalf of HP
Click the “Kudos Thumbs Up" at the bottom of this post to say
“Thanks” for helping!
Click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution!

Why can't my MacBook find my external hard drive through wireless network

I have a 1 TB Western Digital My Book Essential external hard drive connected to my AirPort Extreme. I've been using it with my MacBook via my wireless network (mainly for music and movies) now for about 2 years without any trouble. Recently my MacBook has been unable to find the HD, it gives me the following message "The operation can't be completed because the original item for "My Book 1TB HD" can't be found". If I reboot my entire system (fios router, AirPort Extreme, MacBook, and external HD) I can access it for a short period of time but then the same problem arises. What can I do to resolve this issue and/or figure out where the actual problem is?
Thanks in advance!

The USB port on the AirPort Extreme has always been borderline as far as being able to provide sufficient power for a hard drive. It is not a high power port like you would find on a computer.
If you have not been using a powered USB hub with the AirPort Extreme....it is possible that the power supply on the Extreme has aged a bit, and it no longer puts out quite as much power as before.
Try a powered USB hub, but check the store's return policy before you buy in case this is not the solution.
Atter the powered USB hub, I have no suggestions other than the obvious..... check/replace the USB cable from the hard drive to the USB port on the AirPort.
Also check using an Ethernet connection from your Mac to the AirPort Extreme...to eliminate the possibility of a wireless interference issue being the culprit.

Trouble connecting iMac to wireless networked HP printer -- printer not seen in

HP Photosmart Premium 410
Operating System: OS X 10.9
I am trying to connect a new Mac with OSX 10.9.5 to an HP Photosmart Premium c410, which is on an existing home wireless network and functions properly with other (Windows) computers in the house. I am following online instructions to enter the Apple System Preferences>Printers and Scanners>+ menu in order to add the printer, but the printer is not visible. If I use the "print sheet," the HP printer shows as a grayed out option and a message that the printer has been offline for more than a month. Any advice would be greatly appreciated.
Model Name: iMac
Model Identifier: iMac14,2
Processor Name: Intel Core i5
Processor Speed: 3.2 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB

Hi rmikkelsen,
Welcome to the Support Communities!
OS X: Printer and scanner software available for download
http://support.apple.com/kb/HT3669
Apple delivers third-party software for scanners and printers using Software Update. To set up your printer or scanner, just connect it to your Mac. If software is needed and available, OS X automatically downloads and installs it.
This article is a comprehensive list of currently supported printer and scanner models and associated software provided by third-party vendors as of 23 January 2014.
List of printer and scanner software available for OS X
This list is subject to change. This list is updated as new printer or scanner software becomes available, or when a manufacturer discontinues support for a printer or scanner model. Software Update may display software newer than what is listed in this article for a short period of time after each update becomes available.
* = Vendor software recently updated.
+ = Vendor software recently added.
Hewlett-Packard (HP)
Company website 
Software available
HP Photosmart Prem C410 series *
4.2.1
P
S
Your HP Photosmart Premium 410 is on the list of compatible printers. It appears there has been a software update for this model. So, you may want to check HP's website above and see if they have software or drivers that you can download for your printer.
Always try to establish a USB connection with the printer first, then try the wireless option.
OS X Mavericks: Set up a printer
http://support.apple.com/kb/PH14143
OS X: Connecting a Wi-Fi printer to your Wi-Fi network
http://support.apple.com/kb/ht3500
Troubleshooting printer issues in OS X
http://support.apple.com/kb/ts3147
If all else fails, reset the printing system and install the printer again:
OS X Mavericks: Reset the printing system
http://support.apple.com/kb/PH14141
I hope this information helps ....
- Judy

Wireless networking freezes periodically

Similar Messages

Maybe you are looking for