Finicky Mountain Lion wireless?

Once again, a question for you all.
But first, some specs:
Model: MacBook, 13-inch, Aluminum, Late 2008
Processor: 2 GHz Intel Core 2 Duo
Memory: 4 GB 1067 MHz DDR3
Graphics: NVIDIA GeForce 9400M 256 MB
Software: OS X 10.8.5:
Alright.
For the longest time, I had smooth sailing with my MacBook in terms of wireless. My range was fine, I could hop onto connections with no issue. So why has my laptop decided that it HATES my buddy's connection suddenly? And several connections around the same geographic area.
Literally overnight I went from easier joining his network to "Unable to connect". The airport icon will search up and down, up and down and just...grey out. If I'm lucky, I'll get to the password screen. Where it will grey out once again. Several of the neighborhood networks produce the same result, but my home network? Not a single issue. Big box store wifi? No problems. All of the other devices in that household can find the connection just fine and hop on, including my Kindle and Windows netbook.
So does anyone know why this is happening? The "Geniuses" tried setting a new location for my wireless and that did squat.

Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

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Mountain lion wireless problems

My iMac and MacBook Pro have been dropping wireless connection to Internet since latest update to Mountain Lion. I've not had same problem with my iPad.

Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

HP LaserJet P1102w & Mountain Lion Wireless

I just bought a brand new HP LaserJet P1102w and cannot connect it via wireless to my Mac at all. I'm running Mac OS 10.8 with the latest software updates. I have already downloaded and installed the latest software and firmware directly from the HP site. I cannot seem to configure the printer to work on wireless, although the HP website says it's supported with Mac OS 10.8.
When I go to System Preferences > Print & Scan > Options and Supplies... > Utility > Open Printer Utility > HTML Config... in order to try and connect it to my wifi network (running on a brand new Airport Express), all I get is the following:
This page contains the following errors:
error on line 6 at column 48: Entity 'nbsp' not defined
error on line 12 at column 8: Opening and ending tag mismatch: link line 0 and head
Below is a rendering of the page up to the first error.
HP LaserJet Professional P 1102wUSB
How am I supposed to use this wireless printer wirelessly? Your website says it's supported but when I have all the updated software and firmware on my printer and my computer, it doesn't work. I'm extremely disappointed in HP at the moment and hope you can provide a viable solution.
Mac OS 10.7 has been out for over a year-and-a-half and Mac OS 10.8 has been out for nearly 3 months now. It's ridiculous and disprespectful to your cutomers to not have proper drivers and firmware available to ensure your prodcut works as you say it should.
I look forward to your solution.
This question was solved.
View Solution.

Hi,
I sorry to hear about the problem you are facing, I truly hope this situation will get resolved shortly.
Please follow the steps below in order to bypass this situation and conect the printer to your router using a temporary direct connection:
Turn the printer Off.
Press and hold both the wireless and the cancel button, and then turn the product on.
Hold the buttons until all the lights blink in unison, and then release the buttons.
From the Mac, click the Wi-Fi icon and select Join Other network.
Click Show network and select the printer's SSID, it should include HP, P1102, Laserjet, etc.
If you're not sure which network name belongs to the printer, print a network configuration page by holding the Cancel button, it will be listed on the right side within the network information.
Allow 4-5 minutes till the ad-hoc connection will be fully established
Open Safari and click the Bookmarks icon (), then select Bonjour.
Double click the printer name, the EWS page appears.
Click the Networking tab, and then click Wireless from the list on the left.
Under Communication Mode , click Infrastructure , select your network SSID from the Available Network Names (SSID) list, and then click the >> button.
From the Security Mode pop-up menu under Authentication , click WEP or WPA/WPA2 . Your selection depends on which Wireless Security Protocol your network uses.
Note: if you aren't sure what security type is used, click the Wi-Fi icon on your MAc and select Open Network Preferences. Select Wi-Fi and click Advanced, within the Wi-Fi type you should see your router name with its security type listed right next to it.
If your network does not have Wireless Security, leave the Security Mode set to Open System (No Authentication).
Type your WEP/WPA/WPA2 key in the appropriate field, and then click Apply
In the confirmation box, click OK , and then close Safari.
From the Mac, click the Wi-Fi icon and select Join Other network.
Click Show network and select your home network again, now both of the devices connected to your home network .
Open Print & scan, click the Plus button and add the printer listed as AirPrint.
Regards,
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

How can I fix my Mountain Lion wireless issue.....

When I connect a connectify wireless network of my roommate's computer , it will happen.
The system show the wireless still work,but it doesnt work actually.
I must disconnect my wifi connection then fix it....it's make me going to crazy,I'm enough.....
Please who can help me to fix it....
I have already updated to OS X 10.8.2,but it doesnt work....
My device is 10' MACBOOK PRO 17''.....

Pull the system configuration folder.
Go>computer>mac hd>library>prefrences>system configuration
drag this system configuration folder to the desktop and restart the comptuer.
Then give it ago.

Facebook and YouTube not opening on Mountain Lion?

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Regards
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try this its an mtu setting problem
http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/

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When I want to save data of the MBA13 on mountain lion (wireless) with time capsule, hois there any best practice to perform?
After that, assuming that data are back-up, can we easily differentiate data in time capsule belonging to MBP15/13 and MBA13?

Unfortunately, Apple left off the Ethernet port....the most important port in networking....on the MBA, so your first backup of the entire Mac will need to be done using wireless.
That may take a day or two unless your MBA has a Thunderbolt port on it in which case you could add a Thunderbolt to Ethernet adapter and connect the MBA to the Time Capsule for the first backup using an Ethernet cable. It will probably only take 3-4 hours or less doing it this way.
Once you have the first complete backup done, other subsequent backups can be done using wireless since they will ony take a few minutes, on average.
Both Macs will backup to the Time Capsule using Time Machine automatically. Backups will be kept completely separate, so one Mac will normally only be able to "see" its own backups.

Lose Wifi after return from in Mountain Lion

Ever since I installed Mountain Lion on my 2011 27" iMac, I lose WiFi connection after returning from sleep and I Have to do a restart. Not happy.

http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/

HT4628 My macbook pro will not automatically reconnect to the wifi after a sleep. This has started after having upgraded to mountain Lion (10.8).

Hi
After I have installed Mountain Lion (10.8) - my macbook pro will not connect automatically to my preferred wifi network. It used to do that on the previous versions. It seems that the mac does not recognize the preferred network, as it asks me to choose a network after evey sleep/restart. I have modified the network preference to have my preferred netwrok at the top of the list. I have tried with/without checking the "ask me before joining a new network". It still behaved the same.
Thanks
Eitan

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fix-os-x-mountain-lion-wireless-connection-problems

Internet speed is slow with Mountain Lion 10.8.2

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Did you try creating a new location and deleting the old one? Just renewing the DCHP on its own may not be enough. Follow all the instructions here, first:
http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/
If that doesn't work, have a look at my further instructions here:
http://applehelpwriter.wordpress.com/2012/08/07/problems-with-wifi-safari-and-mo untain-lion/
(ToU Disclaimer: links to my site contain other links which promote my services as a technical writer)

Internet hangs, slowdowns with Mountain Lion (10.8.2)?

Repeated internet hangs and slowdowns with ML, both on new MacAir and older MBP. 10.8.2 update didn't cure.

Did you try creating a new location and deleting the old one? Just renewing the DCHP on its own may not be enough. Follow all the instructions here, first:
http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/
If that doesn't work, have a look at my further instructions here:
http://applehelpwriter.wordpress.com/2012/08/07/problems-with-wifi-safari-and-mo untain-lion/
(ToU Disclaimer: links to my site contain other links which promote my services as a technical writer)

Since upgrading to Mountain Lion I cannot connect to my wireless router

Since upgrading to Mountain Lion I cannot connect to my wireless router. I have 2 wireless networks in my home. One is the primary whuch all of my devices connect to. The other is for backup only. I cannot connect to the primary with my iMac but have no trouble with any of the other devices which include iphones and ipads.phones and iPads. I can however connect to the backup without a problem. I have tried upgrading the firmware of the router as well as changing the security from WEP to WPA-2, no luck. Can anyone help?

Try this, it's for information.
In Finder, open the Go menu, press and hold the option key, 'Library' will appear on the menu, click and scroll to Application Support, open the folder and scroll to 'AddressBook-v22.abcddb'. Click on the file and press Command-I. Towards the bottom you'll see Permissions, tell me what they are please.

Since upgrading to mountain lion my iphone no longer wirelessly connects to my itunes via wi-fi... is there a remedy for this? thanks

since upgrading to mountain lion my iphone no longer wirelessly connects to my itunes via wi-fi... is there a remedy for this? thanks

I am also having the same problem since upgrading to mountain lion. The symptom is strange.
If I connect my iPhone/iPad using cable first, uncheck and then check the wifi sync option, and then disconnect the cable, iTunes will still be able to see the devices through wifi. But if I restart my computer, it will fail again. And I am tired of repeating this exercise.
Anyone has the same problem?

Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX 10.8.2 Mountain Lion.

Hi!
Didn't know exactly where to direct this question in the Apple Community so I chose Airport. To everyone, thanks in advance.
I’m really desperate. I’m a big Apple fan. I have two Apple MacBook Pro laptops with Mountain Lion software. I also have an Apple Airport Extreme. My HP Photosmart C4780 printer was also purchased from Apple. Anyway, my Internet service is AT&T. AT&T just upgraded my service with a new modem/router (AT&T U-Verse). Prior to the conversion, my wireless printer connection was working perfectly.
Now can’t print wirelessly. For your information, everything is connected via Wi-Fi. The AT&T technician stated that I no longer needed my Apple Airport Extreme, so it was removed. Naturally, after the tech leaves, we find out the HP printer wirelessly no longer works. Thinking that removing Airport Extreme may have been the problem, I reconnected it to the AT&T modem/router, however no change.
This appears to be an HP printer problem. I went to HP community support with the information below but I have received no solutions outside of buying a new printer.
“Ran the HP wireless network test report and it states that HP printer can’t find wireless router and to verify that the HP printer network name (SSID) matches the wireless router network name (SSID) exactly. The Diagnostic Summary in brief: Wireless On & Working & Security – Pass; Network Name (SSID) Found – Fail. Nothing else under diagnostic summary ran. Under Configuration Summary: It shows old SSID name and Mac Hardware Address but no IP Address.
Next ran the Network Configuration Page and everything is enabled except the 802.11 Wireless. It shows status – disconnected. Under general information it states the following: Network status - Offline; Active Connection Type - None; URL(s) for Embedded Web Server – http://0.0.0.0.”
To be straightforward, I’m no computer tech so I don’t know what this means or where to find. The AT&T tech provided me the new SSID Name and a wireless key number but that’s it. Also I uninstalled and reinstalled via USB. The HP message states can’t find router. At this point, I’ve tried everything to reconfigure without success. If I need to make these changes via Airport Extreme Utility 6.0 not easy to find not that I know what I’m doing.
Most importantly if I ever get wireless working again, do I still need Airport Extreme connection or is the AT&T U-Verse modem/router sufficient?
Any direction or help is greatly appreciated. Thank you for listening.

Thank you for your prompt response. I'll be honest I'm a retiree and a newbie to all of this stuff. I don't even know how to do a thread. (Embarassing) This is my first ever contact with the Apple Community so I'm slowly trying to figure this out as well.
As to your thread request, I'm assuming you want to read my post with HP. Not knowing how to thread, I've copied it below.
I have an Apple MacBook Pro laptop with Mountain Lion software. I also have an Apple Airport Extreme. My Internet service is AT&T. AT&T just upgraded my service with a new modem/router (AT&T U-Verse). Prior to the conversion, my wireless printer connection was working perfectly.
Now can’t print wirelessly. For your information, everything is connected via Wi-Fi. The AT&T technician stated that I no longer needed my Apple Airport Extreme, so it was removed. Naturally, after the tech leaves, we find out the HP printer wirelessly no longer works. Thinking that removing Airport Extreme may have been the problem, I reconnected it to the AT&T modem/router, however no change.
Ran the HP wireless network test report and it states that HP printer can’t find wireless router and to verify that the HP printer network name (SSID) matches the wireless router network name (SSID) exactly. The Diagnostic Summary in brief: Wireless On & Working & Security – Pass; Network Name (SSID) Found – Fail. Nothing else under diagnostic summary ran. Under Configuration Summary: It shows old SSID name and Mac Hardware Address but no IP Address.
Next ran the Network Configuration Page and everything is enabled except the 802.11 Wireless. It shows status – disconnected. Under general information it states the following: Network status - Offline; Active Connection Type - None; URL(s) for Embedded Web Server – http://0.0.0.0
To be honest, don’t know what this means or where to find. The AT&T tech provided me the new SSID Name and a wireless key number but that’s it. Also I uninstalled and reinstalled via USB. The HP message states can’t find router. At this point, I’ve read your forum and tried everything to reconfigure without success. Any direction or help is greatly appreciated.
Thanks in advance!
Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX 10.8.2 Mountain Lion.
I finally figured it out! (Sorry that I'm replying to my own posts btw, but I want to post the solution for anybody else with the SigmaplusEOL1 problem). If you have the SigmaplusEOL1 as your SSID when you print the "Wireless Network Test Report", you do NOT need to return it (I know that's hassle for people). To fix the problem, follow these steps.
1) Unplug your printer.
2) Go to your router's IP address (like 192.168.1.1 or whatever it is for your router).
3) Change the SSID of your wirelss network to "SigmaplusEOL1".
4) For the Security option for your wireless network select none (so that a password is not required to access your wireless network).
5) Power your printer back on and reprint "Wireless Network Test Repor". It should say "No problem found..."
6) The report should also have a the IP Address of the printer (under Configuration Summary at the bottom). Type that IP Address in your browser to get to the printer's settings page.
7) Click the "Network" Tab at the top.
8) Under the "Connections" header in the left pane, click "Wireless (802.11).
9) Click "Start Wizard" at the bottom right.
10) In the wizard, change the SSID and encryption (wep or wpsk) password to whatever you want your wireless network to be. So probably whatever it started out as before you changed the SSID to SigmaplusEOL1
11) Click "Finish" at the end. The page will probably try to keep loading but it won't because you changed the network settings of the printer. Just ignore that
12) Go back to your router's IP address and change the SSID and encryption password to whatever you changed the printer's SSID and password to.
13). Reprint the Wireless Network Test Report. It should say the SSID is the same as your wireless, and everything is good.
That's it. You should be good to go now.
Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX 10.8.2 Mountain Lion.
Thank you for your prompt response. This has been a totally frustrating experience. I’ve spent at least 8 hours trying to fix this. My HP problems and your initial steps were identical to mine. I am by no means a tech person and my computer tech knowledge is minimal. However I followed your steps to the best of my ability.
I did get the SigmaplusEOL1 message. I was able to get to Step 6 where the wireless network test report now reads – “HP printer settings do not match your wireless router settings.” So I guess this is a step in the right direction. However unfortunately the Configuration summary message for the IP Address reads – “Not Applicable”. (Note: changing SigmaplusEOL1 to network name knocked out my Internet access. Had to switch back to regular network name to regain access.)
I’m at a loss as to what to do next.   Without the IP Address is it possible to move forward? As I stated earlier, I’m not a tech person. As to your steps 7, 8 and 9, I can’t find them on my computer or maybe I’m looking in the wrong places. In System Preferences - Network, I have none of these steps. If you’re referring to Airport Utility, with the changes in Mountain Lion, these steps are no longer there. If you’re talking about Safari, Firefox or HP, now I’m really lost.
Finally, I don’t know if you can answer this or not. If I ever get wireless working, do I still need Airport Extreme or is the AT&T U-Verse modem/router sufficient?
Again thank you for your time and patience.
Re: Can't connect wirelessly HP Photosmart C4780 to MacBook Pro OSX 10.8.2 Mountain Lion.
Unfortunately I am unable to offer any further advice as I only followed the instructions listed on the other page.
Finally, as to having WEP enabled, I don't know. Don't even know where to look. The best that I could determine is that my security is WPA/WPA2 Personal.
I'm truly sorry about all of this. Thank you for your time and patience. After reading all of this and you change your mind, I would understand.

I have a mountain lion 10.8.5 version installed on my 2012 Macbook air but there is no Wireless Network application installed. Can anyone advise me how to fix this or get it installed, thanks.

I have a mountain lion 10.8.5 version installed on my 2012 Macbook air but there is no Wireless Network application installed. Can anyone advise me how to fix this or get it installed, thanks.

thank you Eric/Joe, what I actually was looking for is wireless diagnostic utility not the wireless diagnostic assistant as per your advise but have found the resolution right here http://support.apple.com/kb/HT5606

Installed mountain lion, now I cannot print wirelessly from imac or macbook

I installed mountain lion. I updated as much as there is to update via software. Now when I try to print wirelessly from my imac and macbook pro it says "unalbe to find printer" and printer is not connected from both computers.
I reconfigured the Brother MFC 7840W printer settings and it says that it is connected. I've always been able to print before, so this is related to the new ML installation.

also, the printer says it is not connected, maybe if i connect it, i can print wirelessly. how do i connect it?

Finicky Mountain Lion wireless?

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