MacBook becomes invisible in my network

Hi, mysteriously my mac book becomes invisible in my network and nobody can see it although I can see any other computer in my network.
This problem can be temporarily corrected using AppleJack, but after a while or a day or some days the issue comes back.
Thanks for any given tip.
Diego

Is it's IP changing?
Might try this weird fix from long ago...
Try disabling Auto Login, and reboot.

Similar Messages

Computer becomes invisible in my network

Hi, mysteriously my mac book becomes invisible in my network and nobody can see it however I can see all other computers in my network.
This problem can be temporarily corrected using AppleJack, but after a while or a day or some days the issue appears again.
Thanks for any given tip.
Diego

Is it's IP changing?
Might try this weird fix from long ago...
Try disabling Auto Login, and reboot.

InDesign PDF export to network server becomes invisible

Hi,
Just upgraded to InDesign CS5. When I export a PDF document and post onto network server, it becomes invisible. I only know this because when I export onto my desktop and then drag into the network folder, it gives me an error message that it can't replace an invisible file. So I found a way to view the invisible file, trashed it, then dragged the one on my desktop into the network folder. Worked fine. I'd prefer not to have to do this EVERY time I export to PDF. Anyone have any experience with this issue? Help?

I'd vote a dodgy server. I've had no issues with Mac OS X 10.5.x 10.6.x or Windows 2000, 2003, 2008 or Windows 7 shares.
InDesign has been known to work over the network. I think a patched version of CS 5 has little to no issues working on network shares that I've heard of.
Print Professional is a reasonably vague term that doesn't necessarily mean there is an amazing network setup. The difference between having a clean network setup with collision domains that are not congested and a packet dropping nightmare isn't always apparent. One can have a 60 dollar switch or a 2000 dollar switch and that can make all the difference. Similarly a file store can be a fibre channel beast or a NAS with a gigabit connection. Both can throw out the term gigabit and terabyte and be accurate, but the difference between SOHO grade junky with shakey firmware. What you'll get out of the CISCO Catalyst or HP Proliant in comparison to LinkSys and an HP MediaSmart are worlds apart.

Brand New Macbook, Old WDS/Airport Home network -- Slow internal transfers

Airport 802.11n network w/ WDS remote
Just powered this MacBook on, but I am getting ridiculously slow speeds on internal file transfers (350Mb in 7hours?). I've done all my updates, and there is no reason why the existing network shouldnt be able to do better.
Signal strength is strong, Link speed is showing 130Mbit/s.
I have an AP express in the same room that I use to stream to an Xbox.

If your Extreme is the new dual band model, the obvious solution is to run an exlusive 802.11n network for your Macbook, and an 802.11g network for your Express, Powerbook, and xbox. The dual band Extreme can bridge these networks.
WDS is a compromise that has its place in extending the useful range of older 802.11b/g networks. It's arguably becoming less useful as web page designers grow to rely upon bandwidth hungry flash animation and code, and it will absolutely kill your file transfer throughput.
are there any performance tweaks you can make that would allow the network to run at 'n' speeds when the older devices are off the network?
I'm unaware of anything that would accomplish this.

Pointer becomes invisible

My setup: 12" PowerBook G4 with a 19" Apple Cinema LCD in dual display mode with OS X 10.3.9.
When I disconnect the cables that connect my LCD to the laptop from the laptop so that I can go portable with the laptop, the on-screen representation of the mouse (the pointer, I suppose) becomes invisible. The OS still recognizes my input on the trackpad, as evidence by the fact that I can click and drag and whatnot. I simply can't see the pointer. The only way to get it back is to reboot. It's not the end of the world, just a pain in the butt. Any ideas?
Thanks for the help!

In System Preferences> Energy Saver make sure "Wake for network access" is checked. This worked for me.
Doesn't work for me neither.
Everytime my pointer disapear, my wallpaper get messed (see the link bellow)... Everything gets back normal when I reboot the Quartz windowed server (log out)...
Please! Mac os X Software engineeres, read this thread and help us
http://imageshack.us/photo/my-images/521/screenshot20120216at119.png/

I am having trouble transferring files from an old MacBook (2007) to a MacBook Air over a wireless network. The connection was interrupted and the time was over 24 hours. Is there a better way to do this? I'm using Migration assistant.

I am having trouble transferring files from an old MacBook (2007) to a MacBook Air over a wireless network. The connection was interrupted and the time was over 24 hours. Is there a better way to do this? I'm using Migration assistant. The lack of an ethernet port on MacBook air does not help.

William ..
Alternative data transfer methods suggested here > OS X: How to migrate data from another Mac using Mavericks

Connecting Macbook to printer in wireless network

I recently got a Macbook. I have a pc downstairs that is connected to an HP officejet printer, and one upstairs connected to the same printer via the wireless network. My Macbook uses the same wireless network but I don't know how to find and connect to my home printer. It is already connected to one printer - an unopened one I will use at college. Can I connect to two? I searched via spotlight (I'm new to Macs and finding everything) and it brought me to the printer utility set up thing, but I just can't find the printer even when I tell it to add one. I'd really appreciate it if someone could help me!
Thanks,
Kerry

I recently got a Macbook. I have a pc downstairs that is connected to an HP officejet printer, and one upstairs connected to the same printer via the wireless network. My Macbook uses the same wireless network but I don't know how to find and connect to my home printer. It is already connected to one printer - an unopened one I will use at college. Can I connect to two? I searched via spotlight (I'm new to Macs and finding everything) and it brought me to the printer utility set up thing, but I just can't find the printer even when I tell it to add one. I'd really appreciate it if someone could help me!
Thanks,
Kerry

Price field is not becoming invisible from the item overview of SRM quote

Hi All,
I am facing a very unique problem . I need make certain fields invisible in the SRM quotation . One of them is the price field at the item level.
I have used BBP_UI_CONTROL_BADI for the same. However the field is NOT becoming invisible from the item overview. It is becoming invisible from the item detail but NOT from the item overview.
Is it because the field is defined as display only in the code ?
I have implemented note 1062639. Other than this price field I am able to make all other fields invisible from the item overview.
Code :
IF iv_fieldname eq 'BBPS_BID_UI_ITEM-PRICE'.
cv_invisible = 'X'.
ENDIF.
IF iv_fieldname eq 'BBPS_BID_UI_ITEM-PRICE_UNIT'.
cv_invisible = 'X'.
ENDIF.
Does anyone have any suggestion as to how to solve the problem ?
Regards,
Ajali Sen

Dear Poster,
As no response has been provided to the thread in some time I must assume the issue is resolved, if the question is still valid please create a new thread rephrasing the query and providing as much data as possible to promote response from the community.
Best Regards,
SDN SRM Moderation Team

Why are my MacBooks so slow on the network when everything else is fast?

Last month, my apartment complex changed its network from a pretty wide open Wi-Fi to one where we must enter a user name and password every 30 days for each machine. Since then, both my MacBooks (2012 MBP running 10.8.3 and 2008 white MB running 10.7.5) have very slow connections. Web pages will fail to load, or load incredibly slowly (as in the progress bar moves an inch then stops). We get bursts of activity (as also seen in Activity Monitor) lasting for seconds (limited to 4mbps down/0.2mbps up by the new ISP). This occurs on both Safari and Firefox. iTunes music store, the Mac App store, Mail, and Spotify all exhibit identical behavior. My iPad, iPhone, and another's Windows netbook connect without any obvious difficulty. We had a rep from the new ISP come to check out our connection, and he believes that the problem is directly related to the MacBooks (a virus on both?).
Things I've tried without change in behavior (with the 2012 MBP):
1. Connecting directly to ethernet (and turning off AirPort).
2. Restarting the computer and the router.
3. Logging in elsewhere in the complex
4. Changing DNS to 8.8.8.8 and 8.8.4.4
5. Deleting AirPort and re-installing in System Prefs
6. Following the excellent "Step by Step to Fix Your Mac" https://discussions.apple.com/docs/DOC-3353 on these forums, including clearing every cache imaginable with Onyx, and uninstalling Java, Silverlight, Flash, and any System Pref plugins.
7. Sorting through Activity Monitor to find anything else running on my CPU of consquence--I don't think so.
8. Confirming good ping and down/up speeds on Speedtest.net with my iPhone
I know little about networking, but I'm learning. Any other suggestions? Why does the MacBook behave differently on this network?

bowsplash wrote:
Thank you for the suggestions. I agree that my ISP rep looked a little confused by my problem. He was comfortable using Terminal (at least for basic network queries--more than I know how to do).
Although I physically have the ISP's router in my apartment, the ISP has changed the password, and I'm unable to change channels (though that shouldn't explain the peristent problem on ethernet). I've tried restarting it many times, including unplugging it.
I just emptied my trash (and restarted the computer). 500gb HD, 24gb free. No change in performance.
You're running out of HD space. That's the problem.
Empty the trash in the Dock as well as iPhoto’s trash!
Open up your application folder & go through all your apps. Trash all the apps you no longer want and/or use.
An easier way to do this is to open the Application folder in list view & press the Command+j keys.
In the the dialog that appears, click the "This Window Only" button & the "Calculate All Sizes" check box.
Wait a bit until your file & folder sizes have all been calculated, then click the "Size" column to sort your apps from the fattest to the most anorexic.
Get rid of all your photo files you don't want and/or need. Same goes for those pics off the websites you downloaded (gifs, jpegs, etc.). Or transfer/move them all to a photo/movie storage site like ImageShack and Photobucket, 2 of the most popular FREE storage sites.
Get rid of all your video & music files you no longer view and/or listen too. Especially, if you already have the actual CD/DVDs or you can later redownload from a website. Or transfer them all to a FREE video/movies and/or music storage site.
Use Spotlight to make sure you got rid of everything. You can even trash directly from Spotlight! Better yet, download this FREE software called Find File. This app puts Spotlight to shame (works w/Mountain Lion).
Drag what you don't want and/or need to the trash. Better yet, download this neat little shareware app *demo* called AppZapper. It basically does all the work for you by not only trashing the apps but the apps preference files, caches & all its associated files.
Another software that does the above is AppDelete. Best of all this software is free!
Burn what you want and/or need onto CDs or DVDs. Not everyone has the luxury of purchasing an external HD and/or the system requirements for iCloud to store their "stuff.”
Dropbox is a free storage utility to check out.
You can check with your ISP to see if they offer *free* storage space. Most if not all do now-a-days. There are thousands if not millions of *free* storage facilities on the web also. Use your favorite search engine to search them out as they come in different storage sizes to fit your needs & wants.
Check for duplicate fonts.
Applications>Font Book
Select “All Fonts”
If you see any “black dots” next to any fonts this mean you have duplicates and/or multiple versions of these fonts.
To clean this up, select a “black dotted” font or the Apple + *click* to select multiple dotted fonts;
Edit>Resolve>Duplicates.
What the above does is turns off the duplicates & multiple version fonts. Not delete them.
More than likely the “extras” were installed by other programs and/or other users.
Clear out font caches
Use FontNuke. It does all the work for you. And, best of all it’s *FREE*.
Printer Drivers
Get rid of all the printer drivers you don’t need & use except the ones for your *current* printer(s)/scanner(s).
HD>Library>Printers Folder
If you accidently threw something out that you needed for your printer/scanner it can be easily obtained from the manufacturer’s website and/or from the CD that came w/the printer/scanner.
Garage Band
Has about 1GB of loops stored. Get rid of some some them. You surely don’t use, like and/or need them all.
HD>Library>Audio/Apple Loops>Apple>Apple Loops For GarageBand
Or just get rid of the Garage Band app altogether if you don’t use it.
Get rid of extra languages
Strip your computer down to your “native” tongue.
You can do this with a *FREE* utility called Monolingual. Another app that apparently does all the work for you. I’ve never used it. However, a lot of users here swear by & recommend it highly.
However, there is a warning for *native English speakers*. Make sure you keep BOTH English and English (United States).
Other Resources:
HD Space Checkers:
Disk Inventory X (FREE)
WhatSize (SHAREWARE)
OmniDiskSweeper (FREE)
GrandPerspective (FREE - donation)
==================
Mac Performance Guide
Slimming your hard drive
Rule of thumb: You should never let your hard drive get to where you have only 10-15% of space left.
Quick fix
How To Quickly Free Up Hard Drive Space on Mac OS
http://www.youtube.com/watch?v=fO-mlLApEuk

When getting online Macbook defaults to an unknown network.

Lately, when I get online, my connection defaults to an unknown network. This happens only on the Macbook, other devices are OK. Is there any way to lock the computer into just my own nework? Could not find anything in preferences.

Please try the following on your MacBook:
1a. Delete Preferred Network(s)
System Preferences > Network > AirPort > Advanced > AirPort tab
Under "Preferred Networks," delete the network(s) you regularly use from the list.
1b. Delete AirPort Keychain Entries
Launch the "Keychain Access" application located in Applications/Utilties.
Click on the "Kind" filter at the top, and look for any "AirPort network password" entries...and delete them.
1c. Add Preferred Network(s)
System Preferences > Network > AirPort > Advanced > AirPort tab
Add the preferred network(s) using the "+" button.
Restart or log out then back in.

Cursor becomes invisible in JTextField after using default button

In my application there is an update screen (JPanel). I am using default button in that panel. The input field is a normal JTextField. When the update is over the cursor goes back to the input JTextField.
     Now my problem is that when I carry out update with mouse, the cursor is correctly placed into the input JTextField and is visible after the update is over. On the other hand, if I carry out the same update operation using default button (using keyboard), the cursor gets placed correctly in the input JTextfield column, but becomes invisible. If I minimize and then again maximize the window, the cursor appears back. What am I missing ? Note that I am using component.requestFocusInWindow() to get focus back to the input JTextField.
regards,
nirvan

While trying to reproduce the behaviour for SSCCE, I found that it is the JOptionPane.showMessageDialog() that is causing the problem. Here is the SSCCE.
package com.ns;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.WindowConstants;
public class TestFocus extends javax.swing.JFrame {
    // Variables declaration - do not modify
    private JTextField field1;
    private JTextField field2;
    private JPanel jPanel1;
    private JButton reset;
    private JButton update;
    // End of variables declaration
    public TestFocus() {
        initComponents();
        setDefaultButton();
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        jPanel1 = new JPanel();
        field1 = new JTextField();
        field2 = new JTextField();
        update = new JButton();
        reset = new JButton();
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        field1.setPreferredSize(new Dimension(40, 20));
        jPanel1.add(field1);
        field2.setPreferredSize(new Dimension(40, 20));
        jPanel1.add(field2);
        update.setText("Update");
        update.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                updateActionPerformed(evt);
        jPanel1.add(update);
        reset.setText("Reset");
        reset.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                resetActionPerformed(evt);
        jPanel1.add(reset);
        getContentPane().add(jPanel1, BorderLayout.CENTER);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-385)/2, (screenSize.height-258)/2, 385, 258);
    }// </editor-fold>
    public void setDefaultButton(){
        this.getRootPane().setDefaultButton(update);
    private void updateActionPerformed(ActionEvent evt) {
        // TODO add your handling code here:
        JOptionPane.showMessageDialog(this,"Activity Updated Succesfully in Database.",
                                        "Information",
                                        JOptionPane.INFORMATION_MESSAGE);
        update.setEnabled(false);
        field1.setEditable(false);
        reset.setEnabled(true);
        this.getRootPane().setDefaultButton(reset);
    private void resetActionPerformed(ActionEvent evt) {
        // TODO add your handling code here:
        field1.requestFocusInWindow();
        field1.setText("");
        field1.setEditable(true);
        reset.setEnabled(false);
        update.setEnabled(true);
        this.getRootPane().setDefaultButton(update);
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new TestFocus().setVisible(true);
}If I remove the JOptionPane.showMessageDialog() method, everything works fine with mouse as well as keyboard.
regards,
nirvan.

Macbook air keeps 'looking for networks'

My Macbook Air keeps 'looking for networks', and the upload speeds are slow -- should be 50 plus, are 25-30 mps.
Upstairs, my iMac gets 60mps upload and 30 mps download. So Verizon is providing what they promise, its just
that the MacBook Air seems to have a bit of a problem.
Verizon has done what they could to tweek the system, and it make make a small improvement -- from 20 to the 25-30 mps.
The tech suggested, politely, it was time to talk to Apple, and I will make a Genius appt.
But I was wondering if other with MacBook Airs had had this problem of the computer constantly 'searching for netsworks'.
Thanks,
Hal

Open System Preferences > Network > Advanced then select the Wi-Fi tab.
Drag your network to the top of the list.
Select: Remember networks this computer has joined
Click OK.
Keep in mind, everytime you click the AirPort icon in the status menu bar, it will automatically "look" for networks.

Visible folder has become "invisible"

Visible folder has become "invisible":
I thought I'd lost a folder but when I was doing a search for a possible copy of one of it's content files, I found the contents along with the "trail" for that file's location. Within the chain of files, there was my missing folder.
I don't know how I made the folder invisible BUT how do I get that folder back into my real-world?
titanium & Powerbook-Pro Mac OS X (10.4.7) 1024MB memory & 2meg on Pro

Hi Charles,
the "/" means that the original folder is directly in
the root directory. Open File Buddy, select "New List
Window" from the menu "List", then click "Add" and
add your hard disk. Now double-click it once which
should show the root directory with folders such as
"Library", "System", "Users" and so forth. One of
these folders should be the invisible folder you are
looking for (given that you selected to show
invisible items in the Preferences of File Buddy).
Gulliver,
Did as directed. File did not show-up when I did the double-click. It DID show up when I did a single click to create the sub-listing. However, trying to make it visible in the "information" window gave NO changed results. Finding the folder was not a problem, making it visible "outside" the disc program is my goal. That and figuring out how it became invisible in the first place. As far as I can determine, NO symbol (.) or (/) appears in front of the folders name.

Macbook will not see wireless network

My new Macbook will not see my wireless network. My Windows 2000 PC, my Ipod touch and my Macbook Pro (jaguar) all see it no problem and work well with it.
I have tried entering the network name manually and it does not work. I have WEP password protection.
The macbook sees and connects to all other wireless networks I've encountered (father-in-law's house, Airport departure lounges, hotspots etc.). The macbook also sees my neighbours networks no problem.
I am confused, please help.

I am having the same issue, a friend visited with his new Mac Mini, running Leopard, and it would not see the wireless network, that 3 other macs (PowerBook G4, iBooks G4 and G3) running Tiger (10.4.11) and Windows machines recognize without problem.
I'm wondering if the issue is Leopard and 3rd party routers or MY router in particular, as I have a US Robotics 5461, and I remember when a previous roommate replaced her G4 iBook, running Tiger, with a MacBook Intel running Leopard, she also had issues connecting wirelessly.
My friend's Mini had no problem recognizing all the neighbors networks (at least 4 or 5) and I'm pretty sure they are not Mac users with an Airport Base Station.
I was hoping to upgrade my G4 PowerBook (once I get it repaired) to Leopard in the future, but I don't want to lose the ability to connect to my wireless network.
Has anyone running Leopard run into this problem and found a solution?

SQL-developer 4 EA - connections becomes invisible

When leaving my SQL-developer open over nigth, my connections become invisible. The connections are still open and available but unfortunately invisible.
I have to re-start SQL-developer in order to fix this annoying problem.
I don't know the exact reason for this, Maybee a shutdown of a database or something else.
regards Karsten

I'm experiencing the same issue as KarstenH-dk -- connection window is blank... try to close, reopen window, connections don't reappear -- have to close EA4 and restart EA4 for them to show back up

MacBook becomes invisible in my network

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