Network connection drops on MacBook Pro

I have a MacBook Pro 15 “ Unibody OSX 10.5.8 (have not yet upgraded to Snow Leopard) 2.53 GHz Intel Core 2 Duo 4GB Ram purchased in December 2008. This was my first Mac purchase having used only Windows PCs prior to that. My daughter has a nearly identical Macbook Pro purchased for her in July of 2008 which is also running OSX 10.5.8. Everything on my Mac has worked perfectly---and beautifully-- until about one month ago when I started having problems connecting to our home network (Netgear Router, Commcast provided modem). It is important to know that my daughter’s MacBook Pro and my wife’s Dell laptop (Vista) do not and have never experienced the network connection problem I have been experiencing---only my Macbook Pro--- so I assume the fault lies somewhere other than with the router or modem. I lose the internet connection once or twice each day--sometimes when I am in the middle of something and sometimes when I turn my MacBook on from being shut down or from sleep--happens in all three states. After discussing this issue on the phone with several people at Apple tech support (all of whom were very pleasant and patient) it was determined that the internet connection issue could be solved temporarily by dragging the System Configuration Folder from the HD Preference Library to the desktop, then restarting, then clicking on our home network name. Whenever I follow this procedure I am able to connect to the Internet again and everything is fine until another 12 to 24 hours goes by and then I lose the connection again, repeat the fix and so on and so on. Since this problem does not occur more frequently than once or twice a day I have not bothered to take my MacBook to an Apple Store to see if the problem is caused by a hardware issue. I do not have a back up computer for my personal use at home and would rather not take my MacBook in unless until I have exhausted any other options that might exist. Does anyone out there have any suggestions? Any help would be greatly appreciated.

Welcome to the discussions forum Rpma1900.
I can't explain your problem, but since no one has posted any ideas might I suggest the following?
Try turning OFF IPv6 in Network Preferences. IPv6 is a great idea in theory but I've never encountered a network situation in which it's resulted in any performance improvement.
Try giving your MacBook Pro a fixed IP address. Make it numerically higher than any that might be provided by your Netgear router so it won't conflict with them.
Finally, I once experienced this identical problem using a Linksys router, but with a strange twist: my Vista computer would lose connection in much the same manner as your MacBook Pro, while all my Macs would remain happily connected. After exhausting every other imaginable solution, including the above suggestions, I finally removed the Linksys router and installed an AirPort Express. Problem solved.

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Wireless Connection Dropping on MacBook Pro

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I have been running into an issue with my Macbook Pro dropping wireless connection to Alcatel Wireless access points. It happens when I disconnect AC power and run off of the battery. It usually drops the signal a few minutes after that. I have run all the updates and it still seems to be happening. We can tell when it drops because we are kicked off of a Filemaker remote database. Has anyone else run into this issue?
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macsat wrote:
I narrowed down the issue some time ago, but still it haven't been fixed (not even in the 2007.04 wireless update):
http://discussions.apple.com/thread.jspa?messageID=4854252&#4854252
Please beware that Pacifist-based "fixes" like that advocated in the thread in question above have two notable downsides:
1) You will remove certain functional and security fixes from your system.
2) You may break future software updates as your system will be listed as having some software installed that no longer is installed.
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No wireless network connection on NEW MacBook Pro Core 2 Duo???

When I started my 2.16 15 inch C2D up out of the box yesterday it connected to my WEP Network with Airport and my password. That lasted about 12 hrs when the connection faded, then was lost. I cannot get this thing to connect no matter what. I've read the numerous posts about this same issue with these machines, no similar abundance of problems on the MacBook Plastics. What the heck is up with Apple on this? Por Favor, I'm going to bail on this thing if I have to jump through hoops just to use wireless...Can anybody offer any help or hope, before I ebay this thing and go back to a 12in PB? I'm really disappointed in Apple.

I received a 17” MacBook Pro 2.33 GHz Core Duo for Christmas. I am a long time PC user and this is an attempt to migrate over to Apple. We have two other PC laptops that connect wirelessly to our in home network via a Linksys WRT54GS v5. The Internet service provider is Cablevision and the connection is broadband cable. This router is less than a year old and has been working great with all wireless laptops including any guests.
With the MacBook Pro next to the PC laptop the PC sees the network and acquires a log on without a problem. The signal it receives is outstanding and the connection robust. The MacBook Pro sees the network with a good signal and will not connect to the Internet.
The router encryption is “WPA Personal” but I also tried WEP and No encryption – None allowed the Mac to acquire a wireless connection but every change I made in the router the PC’s connected fine. Out of frustration, I decided to just hook up a direct Ethernet cable from the router to the Mac. Again I was not able to connect. As a fair test I hooked up the laptop PC with the direct Ethernet cable and was immediately online. According to Linksys Tech support all my settings for the WRT54GS are fine and the PC’s connect wirelessly so the problem is with the MacBook Pro. I brought the MacBook back to the Apple Store and had the tech there test it using the in-store wireless and Ethernet cable connections and both worked fine. The Apple Tech reviewed a printout of all my router settings and made sure all my software screens were set correctly so when I got home all should work after the passkey was applied. Unfortunately, this was not to be. Neither the Ethernet nor wireless worked. I reset power to both the cable modem and router and sequentially reapplied power allowing each to reset. In the end, I was not able to gain access to the Internet with the MacBook Pro.
From the many posts to this support forum regarding problems with Airport Connection to the Internet I can see Apple has a problem. I’m especially dismayed by the number of posts by new MacBook Pro owners describing the same symptoms. Connecting to the Internet should be an automatic feature for Apple products but as it turns out, from my experience, it is not. After three days of frustration working on this and with both manufacturers tech support people pointing fingers at each other I felt caught in the middle with a $3000 computer unable to connect to the Internet. The MacBook Pro was returned for a refund.
This is really too bad as I had anticipated my switch to Apple for a long time. Getting away from the antiquated, poorly written XP software was something I was looking forward to. Maybe down the road I can try this again, but right now, I’m a little burned out with Apple.
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Fix for wireless connection issues on MacBook Pro - reinstall OS!

I hope this helps some of you out there.
I was having all the usual problems with connectivity with the MacBook Pro I bought in January 09. It dropped the signal constantly and if I closed the top, it would make me search for my network again then it would give me the "connection timeout message" over and over again. I couldn't get anything done either at home or anywhere else. I finally took it in to the genius bar but they couldn't replicate the problem so I was sent home. The guy did, however, suggest reinstalling the OS (which I thought was a dumb idea since it had to be the airport card right?). Since it was a week away from the release of Snow Leopard I waited.
Once I installed Snow Leopard all was fixed. It has now been almost 2 weeks and I haven't lost a signal once - the difference is amazing. I feel liberated!!
Try a reinstall or upgrade to 10.6. and good luck. Post here to let us know if it works for you. Don't forget to backup your date first!

Nope I'm not trying to tether. I would like to be able to use a wifi connection on my mac and other devices. I've gotten by so far just hooking up my mac to the ethernet port, but that requires me to be in my room. I know its possible since there a bunch of networks nearby (locked of course), but I just can't figure out how to get mine working.
I'm living in an apartment across the street from campus that is sort of school-owned...well its private but the internet service is provided by the campus since only students live here. So we have to register anything that we want to use on the school's network. On campus I can use wifi on my mac or iphone. Its troubling how I can use the ethernet cable just fine, but when I connect it to my router (which I registered through the school as well)...nothing. Technically this should be working easily - but maybe you're right on the network security accessability...or maybe my router is old...or my mac doesn't like my router? I've had this problem before during my undergrad years except I was dealing with a cable provider and not the school.
Maybe I should just make friends with my neighbors and find out how they set up theirs haha.

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WWSJS??? What Would Steve Jobs Say???!!!
OZones

What adapter do I need to connect my 2009 Macbook Pro to my 2007 iMac?

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The 2007 iMac does not support cabled input. see > Target Display Mode: Frequently Asked Questions (FAQ)
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Well, you cannot use the 3G USB modem plugged directly into the Express. However, you can configure your MacBook Pro to do 'Internet sharing' (SysPrefs>Sharing) over the Ethernet port, and then connect your Express into the Ethernet port. Alternatively, you could always get your MacBook to 'create a wireless network'.
new house, waiting for DSL to be installed, 2-3 month wait.
You could always look for open WiFi networks to *cough*borrow*cough* .

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Hi guys. I am after some advice please.
My Mac Book Pro is currently not allowing me to browse my Samsung Omnia phone by bluetooth.
It has worked previously however, it is not now. It recognises that the phone is there but when it comes to connecting it says "The connection failed or closed" - Would you like to attempt to reconnect or close this window?
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Hi Elizaanne,
I understand you are having issues with HP Officejet 6700 Premium not connect to your Macbook Pro.
Sometimes the router needs to be cycled. I would unplug the router, turn off printer, turn off computer.
Turn back on router wait 5 min and turn on printer and computer.
Check on the printer if Wifi is SOLID.
From System Preferences, open Print and Fax or Print and Scan pane. If you see the printer listed
Click remove printer- button. It will ask for confirmation of delete printer.
Click the Add or + button, select the printer Bonjour Multifunction not Fax. Adding that should update the drivers.
If the Printer Wifi is not solid you will have to set it up again.
Press the Power button to turn on the printer.
Touch the Right Arrow to display the second navigation screen.
Touch Setup , and then touch Network .
Touch Wireless Setup Wizard
Then add it to you Mac 10.7.
I hope this helps.
Please feel free to contact me if you require further assistance.
Thanks
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Internet connection lost on Macbook Pro when PCs are connected.

Recently I running into very annoying problem, here it is:
I am using comcast cable internet, connected to Airport Extreme (802n) wan port via ethernet, I got 3 computers are using the same wireless network: one Macbook Pro and two PCs. If both PCs are off, I have no connection problems on Macbook Pro, but if either one of the PCs are on, the browsers on my Macbook Pro can't connect to internet, however, I can still receive emails on Macbook Pro. By the way, airport extreme are set to DHCP, all computers share one IP address. Airport extreme with most recent firmware 7.3.2 installed.
Any help are welcome and thank you in advance.

ddg57, Welcome to the discussion area!
By the way, airport extreme are set to DHCP, all computers share one IP address.
Each computer should have their own separate IP addresses. So I'm hoping that your statement above means:
(1) The AirPort Extreme base station (AEBS) uses DHCP to get an IP address from the ISP.
(2) The AEBS is configured to share a single IP address (not bridging).
(3) The computers are configured to get an IP address via DHCP (via wireless).

My iphone 4s is not connecting with my macbook pro via blue tooth

my iphone 4s is not connecting with my macbook pro via blue tooth

Hi pogster,
Thank you for responding. Everything was working a short while ago. Apple tv, iPhone 4s and macbook pro on blue tooth and now nothing works. The assistant looks at the network as not there. but, the macbook pro works fine wit the blue printer??
Philippe Lepetit
[email protected]
La vie est belle.
(250) 744-4557

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Also, what hardware (router, ethernet hub, air-port, etc) do you recommend to make this work? (Mid-range price.)
Thanks very much.

not mid range price but usefullness and functionality for usb connected printers and hard drives and usage for Time Machine backup....Apple Extreme N router educational buy about $165.00

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Scanning with a HP connected to a MacBook Pro v.10.9.2

I print and scan with a HP 6515 connected to a MacBook Pro running Os X v.10.9.2. It prints well. Sometimes it scans and sometimes it does not. Help.

Hello there, Welcome to the Forums! I hope you enjoy your experience
I noticed your post about not being able to scan at times with your Photosmart 6515 and Mavericks. I would like to suggest trying the following:
Repair disk permissions
Mac OS X: How to reset the printing system
Re-adding the printer
If you believe the issue may be because of a network disconnection issue, please try this guide:
Printer Does Not Maintain Wireless Connection
I hope that information is helpful.
Enjoy the rest of your day
R a i n b o w 7000I work on behalf of HP
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Network connection drops on MacBook Pro

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