File Sharing vs Internet connection

Hi, I'm quite new to Macs, so please forgive me for spelling out overly basic information!
I'm on a home network which has no access to the internet. Mine is an iMac, while the other 3 computers are Windows based. They are all connected via a wireless router, mine using the built-in AirPort. Everything works great and I can share files via the Sharing area of System Preferences and can quite successfully access all other computers. I can see in the Sharing section that other computers can connect to me via smb://192.168.0.11. Perfect!
Next, I have a 3G USB modem which allows me on to the internet, hey I got to this forum! So this clearly also works well.
However, this is where the problem comes in.
If I have both the AirPort turned on, and the 3G key connected to the internet, I can ONLY have either networking OR internet, not both.
In Network System Preferences, if HUAWEI modem is top of the services pile, the internet works great, however no networking (access is smb://10.239.14.150). If AirPort is top of the services pile, networking works great, but Safari gives up the ghost on attempting to connect to the internet.
Is there anyway, or what do I have to do, in order to have both working at the same time??
Thanks for any help.
Chris

You won't get a USB modem working at the same time as Airport: this is one of the reasons USB modems are a Bad Idea. Is this a mobile dongle connecting to the mobile phone network or an ADSL modem? If the former you are stuck.
If you have an ADSL connection you would need to buy an ADSL modem with an ethernet output. Connect the Airport to this and it will all work together.

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Sharing problems - internet connection

Hi, I can't share my script. It tells me that I have some problems with my internet connection, but it's impossible.
Help me
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I'd like to share both. By for now I need to share just a script, not the whole project. I tried to share both, but it's the same, same problem.
My Adobe ID is [email protected]
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Date: Thu, 26 Jan 2012 20:39:28 -0700
From: [email protected]
To: [email protected]
Subject: sharing problems - internet connection
    Re: sharing problems - internet connection
    created by Ratnesh(Adobe Story Team) in Adobe Story - View the full discussion
Hi, Are you attempting to share a document or a project ?Please send me your AdobeId (story username) so that I can take a deeper look. Thanksratnesh
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Sonata Library Files Playing only internet connection time

Hi everyone.
My Problem ; Sonata Library Files Playing only internet connection time.When Internet connection not available sonata not playing my library files.
Thank you for helping.
MPD Conf
# An example configuration file for MPD
# See the mpd.conf man page for a more detailed description of each parameter.
# Files and directories #######################################################
# This setting controls the top directory which MPD will search to discover the
# available audio files and add them to the daemon's online database. This
# setting defaults to the XDG directory, otherwise the music directory will be
# be disabled and audio files will only be accepted over ipc socket (using
# file:// protocol) or streaming files over an accepted protocol.
music_directory "~/music"
# This setting sets the MPD internal playlist directory. The purpose of this
# directory is storage for playlists created by MPD. The server will use
# playlist files not created by the server but only if they are in the MPD
# format. This setting defaults to playlist saving being disabled.
playlist_directory "~/.mpd/Playlist"
# This setting sets the location of the MPD database. This file is used to
# load the database at server start up and store the database while the
# server is not up. This setting defaults to disabled which will allow
# MPD to accept files over ipc socket (using file:// protocol) or streaming
# files over an accepted protocol.
db_file "~/.mpd/mpd.db"
# These settings are the locations for the daemon log files for the daemon.
# These logs are great for troubleshooting, depending on your log_level
# settings.
# The special value "syslog" makes MPD use the local syslog daemon. This
# setting defaults to logging to syslog, otherwise logging is disabled.
log_file "~/.mpd/mpd.log"
# This setting sets the location of the file which stores the process ID
# for use of mpd --kill and some init scripts. This setting is disabled by
# default and the pid file will not be stored.
pid_file "~/.mpd/mpd.pid"
# This setting sets the location of the file which contains information about
# most variables to get MPD back into the same general shape it was in before
# it was brought down. This setting is disabled by default and the server
# state will be reset on server start up.
state_file "~/.mpd/mpdstate"
# General music daemon options ################################################
# This setting specifies the user that MPD will run as. MPD should never run as
# root and you may use this setting to make MPD change its user ID after
# initialization. This setting is disabled by default and MPD is run as the
# current user.
user "ceyhan"
# This setting sets the address for the daemon to listen on. Careful attention
# should be paid if this is assigned to anything other then the default, any.
# This setting can deny access to control of the daemon.
# For network
bind_to_address "any"
# And for Unix Socket
#bind_to_address "~/.mpd/socket"
# This setting is the TCP port that is desired for the daemon to get assigned
# to.
port "6600"
# This setting controls the type of information which is logged. Available
# setting arguments are "default", "secure" or "verbose". The "verbose" setting
# argument is recommended for troubleshooting, though can quickly stretch
# available resources on limited hardware storage.
#log_level "default"
# If you have a problem with your MP3s ending abruptly it is recommended that
# you set this argument to "no" to attempt to fix the problem. If this solves
# the problem, it is highly recommended to fix the MP3 files with vbrfix
# (available from <http://www.willwap.co.uk/Programs/vbrfix.php>), at which
# point gapless MP3 playback can be enabled.
#gapless_mp3_playback "yes"
# This setting enables MPD to create playlists in a format usable by other
# music players.
#save_absolute_paths_in_playlists "no"
# This setting defines a list of tag types that will be extracted during the
# audio file discovery process. Optionally, 'comment' can be added to this
# list.
#metadata_to_use "artist,album,title,track,name,genre,date,composer,performer,disc"
# Symbolic link behavior ######################################################
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links outside of the configured music_directory.
#follow_outside_symlinks "yes"
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links inside of the configured music_directory.
#follow_inside_symlinks "yes"
# Zeroconf / Avahi Service Discovery ##########################################
# If this setting is set to "yes", service information will be published with
# Zeroconf / Avahi.
#zeroconf_enabled "yes"
# The argument to this setting will be the Zeroconf / Avahi unique name for
# this MPD server on the network.
#zeroconf_name "Music Player"
# Permissions #################################################################
# If this setting is set, MPD will require password authorization. The password
# can setting can be specified multiple times for different password profiles.
#password "password@read,add,control,admin"
# This setting specifies the permissions a user has who has not yet logged in.
#default_permissions "read,add,control,admin"
# Input #######################################################################
input {
plugin "curl"
# proxy "proxy.isp.com:8080"
# proxy_user "user"
# proxy_password "password"
# Audio Output ################################################################
# MPD supports various audio output types, as well as playing through multiple
# audio outputs at the same time, through multiple audio_output settings
# blocks. Setting this block is optional, though the server will only attempt
# autodetection for one sound card.
# See <http://mpd.wikia.com/wiki/Configuration#Audio_Outputs> for examples of
# other audio outputs.
# An example of an ALSA output:
audio_output {
type "alsa"
name "My ALSA Device"
## device "hw:0,0" # optional
format "44100:16:2" # optional
mixer_device "default" # optional
mixer_control "MASTER" # optional
mixer_index "0" # optional
# An example of an OSS output:
#audio_output {
# type "oss"
# name "My OSS Device"
## device "/dev/dsp" # optional
## format "44100:16:2" # optional
## mixer_device "/dev/mixer" # optional
## mixer_control "PCM" # optional
# An example of a shout output (for streaming to Icecast):
#audio_output {
# type "shout"
# encoding "ogg" # optional
# name "My Shout Stream"
# host "localhost"
# port "8000"
# mount "/mpd.ogg"
# password "hackme"
# quality "5.0"
# bitrate "128"
# format "44100:16:1"
## protocol "icecast2" # optional
## user "source" # optional
## description "My Stream Description" # optional
## genre "jazz" # optional
## public "no" # optional
## timeout "2" # optional
# An example of a httpd output (built-in HTTP streaming server):
#audio_output {
# type "httpd"
# name "My HTTP Stream"
# encoder "vorbis" # optional, vorbis or lame
# port "8000"
## quality "5.0" # do not define if bitrate is defined
# bitrate "128" # do not define if quality is defined
# format "44100:16:1"
# An example of a pulseaudio output (streaming to a remote pulseaudio server)
#audio_output {
# type "pulse"
# name "My Pulse Output"
## server "remote_server" # optional
## sink "remote_server_sink" # optional
## Example "pipe" output:
#audio_output {
# type "pipe"
# name "my pipe"
# command "aplay -f cd 2>/dev/null"
## Or if you're want to use AudioCompress
# command "AudioCompress -m | aplay -f cd 2>/dev/null"
## Or to send raw PCM stream through PCM:
# command "nc example.org 8765"
# format "44100:16:2"
## An example of a null output (for no audio output):
#audio_output {
# type "null"
# name "My Null Output"
# This setting will change all decoded audio to be converted to the specified
# format before being passed to the audio outputs. By default, this setting is
# disabled.
#audio_output_format "44100:16:2"
# If MPD has been compiled with libsamplerate support, this setting specifies
# the sample rate converter to use. Possible values can be found in the
# mpd.conf man page or the libsamplerate documentation. By default, this is
# setting is disabled.
#samplerate_converter "Fastest Sinc Interpolator"
# Volume control mixer ########################################################
# These are the global volume control settings. By default, this setting will
# be detected to the available audio output device, with preference going to
# hardware mixing. Hardware and software mixers for individual audio_output
# sections cannot yet be mixed.
# An example for controlling an ALSA, OSS or Pulseaudio mixer; If this
# setting is used other sound applications will be affected by the volume
# being controlled by MPD.
#mixer_type "hardware"
# An example for controlling all mixers through software. This will control
# all controls, even if the mixer is not supported by the device and will not
# affect any other sound producing applications.
#mixer_type "software"
# This example will not allow MPD to touch the mixer at all and will disable
# all volume controls.
#mixer_type "disabled"
# Normalization automatic volume adjustments ##################################
# This setting specifies the type of ReplayGain to use. This setting can have
# the argument "album" or "track". See <http://www.replaygain.org> for more
# details. This setting is disabled by default.
#replaygain "album"
# This setting sets the pre-amp used for files that have ReplayGain tags. By
# default this setting is disabled.
#replaygain_preamp "0"
# This setting enables on-the-fly normalization volume adjustment. This will
# result in the volume of all playing audio to be adjusted so the output has
# equal "loudness". This setting is disabled by default.
#volume_normalization "no"
# MPD Internal Buffering ######################################################
# This setting adjusts the size of internal decoded audio buffering. Changing
# this may have undesired effects. Don't change this if you don't know what you
# are doing.
#audio_buffer_size "2048"
# This setting controls the percentage of the buffer which is filled before
# beginning to play. Increasing this reduces the chance of audio file skipping,
# at the cost of increased time prior to audio playback.
#buffer_before_play "10%"
# Resource Limitations ########################################################
# These settings are various limitations to prevent MPD from using too many
# resources. Generally, these settings should be minimized to prevent security
# risks, depending on the operating resources.
#connection_timeout "60"
#max_connections "10"
#max_playlist_length "16384"
#max_command_list_size "2048"
#max_output_buffer_size "8192"
# Character Encoding ##########################################################
# If file or directory names do not display correctly for your locale then you
# may need to modify this setting. After modification of this setting mpd
# --create-db must be run to change the database.
#filesystem_charset "UTF-8"
# This setting controls the encoding that ID3v1 tags should be converted from.
#id3v1_encoding "ISO-8859-1"
Last edited by SYSTEMEDIC (2010-07-10 06:36:03)

What is dropping I guess is the question? Is it wireless? Is it your WAN connection? You need to identify where the problem is.
To do that you need to try a few things.
1. If you use wireless then bypass it and use ethernet if that is possible.. even just drag things around so you can test if ethernet fixes it. If so and wireless is in fact the problem.. then you can do a few things.
2. Wireless issues with the 7.6.4 firmware are common. Did you upgrade about the time the problems started? I am afraid the bad news is, downgrading is not like in the past where it fixed things.. 7.6.4 seems to have some permanent effect on the TC and it is never quite the same again. How this is even possible I have yet to determine.
The usual fix is factory reset.
Set wireless with short names, no spaces and pure alphanumeric. Different name for 5ghz.
Make sure security is WPA Personal with pure alphanumeric password of 8-20 characters.. unless you are more paranoid.
Fix the wireless channels and test in order. 11, 8, 6, 1
And for 5ghz try the lowest channel, 36 and then a high one, around 150.
3. No improvement factory reset again.. downgrade to 7.6.1 or even 7.5.2 if it is an older Gen4 .. at 18months it might be old enough.. no harm trying. Factory reset again after the downgrade to see if we can get rid of the memory effect.. then try the above steps again.
No luck.. whatever the upgrade did it did permanently.. no fix is available until Apple pushes out a new firmware to fix what they did in the last one. Buy a different wireless router for now and use the TC in bridge just for TM backups.

Sharing Airport Internet connection Over Ethernet

Hi
I've read various things about this on the forums here, but none of them seem to make a considerable amount of sense seeing as the person just magically works out the problem. So I'll attempt to describe my problem.
I'm trying to share my Intel iMac's Airport connection to another mac running 10.4.6 over ethernet. I'm using crossover cable, and so far I've got the two computers to recognise each other in Network tab of the Finder, so I can mount the other's HD on my desktop if i wanted. BUT, I am having no luck with sharing my internet connection, I have the 'Share my Airport connection over Ethernet' settings ticked in System Preferences on the iMac with airport, but the "light" on the network overview page is orange on both computers, and the one connected with ethernet does not connect to the internet.
Any idea what I may be doing wrong?
Thanks a lot
Mo

You are sharing one connection from the main unit to a secondary unit. The secondary unit only has access through the main unit, so the system doesn't see a personal web connection, just a web connection. In order to share that connection, it must be seen as a "personal" or directly connected form of network. This is so that somebody can't just steal your connection and then filter it to a billion computers and hack you and really mess up your system. If you want to share that connection, I suggest you invest in a wireless router. Then you can share all peripherals from the main unit and other units in any configuration you wish, and then use your secondary(wireless) unit to share directly to the third unit(crossover cable) without having to set a bunch of manual controls and troubleshoot. Printers, some scanners, and sometimes even dvd burners can be shared across a router. And because the system reads two connections(comp-to-comp and comp-to-web) through the router, you can actually fully network all peripherals to work across each unit, so long as they all run the same versions of OS and software. Just remember, you get what you pay for with routers. $100-$200 should get you something decent and a USB speed-booster card wouldn't hurt if you can get it as part of the whole router package. I've used the same type of configuration and it has saved me days, even weeks of trying to move data onto cds and dvds to move between computers for using with different programs and tasks.
good luck

Sharing files without an Internet Connection - any solutions?

Has anyone found a way to share files to/from the iPad when an Internet connection is not available? We are considering iPads for International conferences and there are times when there's no Internet connection or someone who needs to share files with us can not access the Internet. Using a laptop this is easily solved with USB thumb drives.
Short of a hack, which isn't really an option, has anyone found a way to share files on the fly? Or is an Internet connection and file sharing or email the only viable solution?

Check out siteclone in the app store. It basically allows you to set up an FTP directory as a "push" location, and clone it on remote devices. Your remote users would be provided a location and user/pass, and they would be populated with whatever content you want them to have. When offline, they can see everything without the need for a connection.

What do i need to access my files from any internet connection

I'm a bit confused, i've found some good videos on youtube on setting up the server but can't get the file shareing to work (of course the only reason i got the server). Some have told me i need a dyns routing service, so i used machighway.com but i still could not connect to my server from any internet conection outside of my home wifi. Now i've been told that i need VPN to be able to do that. So i'm hoping that someone can help clear this up and point me in the right direction. I can connect to the server using my Mac book air over my wifi (using an airport extreme). please help, i've had this server for half a year and have yet to be able to use it for what i intended.
(i upgraded the server to OS X Mountan Lion, and upgraded the app to OS X Server)

Here's how I did it.
-Open a free account at no-ip.org
-Download their app, change your server's hostname to the hostname you selected for your brand new no-ip.org account. Ideally you'd perform this step on a clean install of the Server since changing the hostname can mess a lot of the services up.
-You'll be able to tell it's working by enabling the Websites service and visiting your new no-ip.org hostname in a web browser. You should see the default server page.
If you have follow up questions for me, I don't read this forum much but I am on reddit a lot and I'm trying to start a new subreddit for mac servers: http://reddit.com/r/macserver . Post a thread on there.

File sharing requires Internet in Snow Leopard?

I have two Snow Leopard Macs (10.6.5) and One Tiger (10.4.11) Mac all connected by cable to a router, each with a static IP address. When I have the Internet connection plugged into the WAN port of my router and modem turned on, file sharing works fine from any Mac to any other.
But if I have the Internet turned off and start up the computers, I cannot connect to a Snow Leopard machine to access the hard drive from either a Tiger machine or the other Snow Leopard machine. When I choose connect to Server in finder, and put in the IP address of a Snow Leopard Mac, it just times out, like that Mac don't exist on the network. I remain able to connect to the Tiger machine to access its hard drive via file sharing.
Why does Snow Leopard seem to need an Internet connection in order to be reached for file sharing on the LAN?
Thanks in advance.

I finally got to the bottom of the file sharing issue. I had the Snow leopard machines' network preference setting "Configure IPv4" set to "Manually". I had entered the IP address, router, subnet, and DNS server for each machine. DNS server was set to be the router, as I have my preferred DNS servers configured in the router. If I change Configure IPv4 to "Using DHCP with Manual Address" and remove the DNS server from Network preferences, causing it to be obtained from the router, this fixed the issue. (The DNS server still shows as the router's address, but it is now supplied by DHCP.)
I am still curious why configuring both the IP address and DNS manually causes the issue, while using DHCP for the DNS with fixed IP address fixes it.

Why does File sharing require internet?

I have two computers, both on Snow Leopard 10.6.8 connected to my router. If I have my WAN cable unplugged from the router or my Internet is not working, I find that when I try to access one computer from the other for Apple File Sharing (AFP), that the finder "Connect to Server function" just spins after I put in the server address of the other Mac. Plug in the Internet, and all is fine. It seems that somehow the Internet is being required. Why? And how do I fix this?
My TCP/IP settings for each machine for the network interface used are:
Configure IPv4: Using DHCP with manual address
IPv4 Address: 192.168.0.[some number greater than 1]
Subnet mask: 255.255.255.0
Router: 192.168.0.1
Configure IPv6: Off
I am using fixed IP addresses on my LAN rather than DHCP.
Thanks

PROVEN: IT IS NOT MY ROUTER.
Good isolation testing, and component elimination.
In the first post you said you had been using DHCP with Manual IP address. In the router elimination test you did not mention Manual address and I get the impression you just allowed normal DHCP assigned IP addressing. If my interpretation is correct, that is good.
Stupid question, was Airport turned off during your experiments? If it was not, it is always possible that the Macs were trying to use WiFi instead of the Ethernet cables. By default Mac OS X gives priority to Ethernet, however, it is possible that your System Preferences -> Network interface ordering was changed to give Airport a higher preferences over Ethernet. You would use the Gear icon next to the [+][-][*] icons under your list of interfaces to see/set the interface order. Ethernet should be 1st in the list.
I think that when you open System Preferences -> Network, the interface list is displayed with the current active interface highlighted, but I never did a riggerous experiment to prove this.
This should work. So I'm going to suggest, as an experiment, you start by booting each Mac into "Safe Mode". Boot holding the "Shift" key. This will eliminate any 3rd party extensions from loading, just in case there is a bit of 3rd party software that is interfering.
As a diagnostic experiment please get a copy of "Bonjour Browser" and "WakeOnLan". Both of these utilities probe the network and give execellent lists of network devices they find on the local LAN.
<http://www.macupdate.com/app/mac/13388/bonjour-browser>
<http://www.macupdate.com/info.php/id/15779/wakeonlan>
You should be able to see the other Mac from the output of each of these utilities. Bonjour Browser should be able to show you they Apple File Sharing services being offered, and you should see both your Macs listed. If not then something is blocking the protocol, or for some reason the Mac is not advertising the service.
If you use Applications -> Utilities -> Network Utility you should be able to find out if port 548 is open on the other computer using the port scan option. It should be, but the question is whether Network Utility can see it through your router.
I have run out of experiments to try. Hopefully this will shake something loose and allow you to move forward towards a solution.

Sharing an Internet connection is far far too difficult

I have spent several hours now, trying to script the sharing of my Internet connection for tethering my rpi2 from my X1C3. http://s.natalian.org/2015-04-08/share- … ection.txt I do realise there is the mess of https://wiki.archlinux.org/index.php/Internet_sharing but I am trying to develop a script. Perhaps you can please offer suggestions to improve it?
tether=enp0s25
#inet=wlp4s0
inet=enp0s20u1c4i2
First off, the interface names are fugly. Nothing new there. But is there an easier way to know which interface (wlp4s0 or enp0s20u1c4i2) is actually on the internet? I wish `networkctl status` showed the interface.
Btw I switch between tethering via wifi (when there is an wifi connection) and ipeth (enp0s20u1c4i2), my iPhone's 4G hotspot, when there is no wifi.
#ip addr add 192.168.0.1/24 broadcast 192.168.0.255 dev $tether
ip link set up dev $tether
ip addr add 192.168.0.1/24 dev $tether
# run twice and you get the fugly RTNETLINK answers: File exists
I much prefer ifconfig. It was simpler and idempotent. If I run this command twice I get RTNETLINK answers: File exists. There also seems to be several non-trivial ways to bring up the interface with `ip`. ARGH.
# configured in /etc/dhcpd.conf http://s.natalian.org/2015-04-08/dhcpd.conf
systemctl start dhcpd4@${tether}.service
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o $inet -j MASQUERADE
Next issue is that I need to run dhcpd4 on the tether interface or all hell can break loose. So I need the service file from https://wiki.archlinux.org/index.php/Dhcpd#Service_file PITA.
Next is iptables. This works until you switch from say 4G to wifi interface. Then clearing the iptables... omfg... I still have not figured out how to do this. Yes, I've tried `iptables -t nat -F`. Why is resetting iptables SO HARD? Please tell me it's going to be replaced by something not insane! My current workaround is to reboot. Seriously.
Ideally one can run these commands from memory when one does not have an internet connection. To the engineers behind the unusable interface of `ip` and `iptables`... you have made this incredibly difficult. I guess my sad hope if that systemd will replace this monstrosity with doing the right thing.
Last edited by hendry (2015-04-09 01:08:39)

hendry wrote:I... trying to script the sharing of my Internet connection for my rpi2.
You'll have to ask on the archlinuxarm forums, these forums are for (i686 / x86_64) arch linux support only.
EDIT: Reopened upon request as this is sharing with an rpi from a regular archlinux system if I understand correctly. Sorry about that. But perhaps you could clarify, there was mention of tethering to a cell phone, and another connection, so it seemed the RPi was the system in question.

File sharing/AFP skips "connect as"

I have a Mac-Lion and several accounts, both user and admin. I turned file sharing on and selected AFP. I can connect from another Mac-Yosemite as expected - to any account on Mac-Lion by entering the password when prompted. With one exception.
I have an admin account xyz on Mac-Lion and an admin account xyz on Mac-Yosemite, different passwords. On Mac-Yosemite, in the account xyz when "connect to server", it skips the "connect as" prompt. Connects straight to xyz on MBP-Lion. However, this does happen vice-versa. I also tested other accounts, say abc on Mac-Lion and abc on Mac-Yosemite, admin or standard user. No problem, always goes to the "connect as" window and asks for a password.
I also changed the password of xyz on MBP Lion many times, and delete the keychain, restarted, etc. Also, MBP-Lion is off-cloud. Still thee is this mysterious one-way password-free connection between the two accounts. What could that be and how can I reset it?
Thanks in advance.

It turns out the iCloud causes this behavior. If I sign off iCloud in the account xyz on Mac-Yosemite, then I am prompted with the regular login window when I connect to Mac-Lion. So some setting on Mac-Lion grants password fee access to connections from account xyz on Mac-Yosemite as long as that account is logged in iCloud. (xyz on Mac-Lion used to be signed in the same iCloud account, but I signed out and reset the keychain). Any idea where that could be so that i can reset it?

How do I find out who is sharing my internet connection?

I have enabled Internet Sharing on my ethernet-connected PowerMac G4 (running Tiger) through its Airport card. What utility do I use to see who is actually using the connection?

That has nothing to do with OS X or your iMac, if you think someone has been using your Internet connection then you need to turn on the security on your WI-FI router. Please look in the owners manual of your router for instructions.

Personal File Sharing - Who is Connected to Me?

Getting a message now when I shut down my computer at work that says a user is connected to me through apple file sharing. Is there a way for me to figure out which user on our network that is?

Open Terminal, then type...
w
or type...
who
Enter after either.

Sharing my Internet Connection

I have a MacBook and have a connected a USB modem. I have shared the interject connection via airport. I have then been able connect to the shared Internet using my iPad. When I attempt to connect to the same shared connection using my iMac, I get a "Connection Timeout" and it won't connect.
Can anyone give me any suggestions?
Thanks
Daniel

HI Daniel,
If your iMac is running v10.5.6 as your profile states, you need to update your system software.
Click your Apple Menu (top left in your screen) then click: Software Updates.
After you are updated to v10.5.8, repair disk permissions.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
You may also need to change the Airport Channel on the iMac.
Open AirPort Utility, located in the Utilities folder in the Applications folder on a computer using Mac OS X.
Select the device you’re setting up, and then click Manual Setup. Enter the base station password if necessary
Click AirPort in the toolbar, and then click Wireless.
Choose a new channel from the Channel pop-up menu. Quit Airport Utility and restart your iMac.
Carolyn

Sharing my internet connection TO an airport extreme? How can I do this..

Hi,
My Mac Pro is connected directly to my modem on Ethernet port 1 (Eth-1).
The connection is solid and my Mac Pro can browse the internet.
What I am now trying to accomplish is to share my internet connection with my family who is using an Airport Extreme Base Station.
My setup is as follows:
Modem --> Mac Pro on Ethernet 01.
Inet Sharing on Mac Pro via build-in airport card == Wifi, works.
Inet Sharing on Mac Pro via Ethernet 02 --> AEBS WAN Port == Wifi & cabled connections do not work.
How can I get my AEBS to accept this shared connection, using this shared connection as the source for the internet that is being shared from the AEBS to both, Wifi and Cable, connected clients?
The reason for this setup is that normally my family has their own modem & isp which connects to the AEBS but the modem has broken and it will be a week until the replacement arrives so I need to share my connection with them until then.
The distance between my shared wifi and their AEBS is too far, which is why only having the working wifi is not good enough.
Any help would be much appreciated as I have spend the last 2 hours trying all kinds of configurations to no avail.
Thanks for reading,
Jannis

Hi,
I currenly have a DSL modem that is a router as well and is WiFi able.
This gives me one LAN with no subnets as there is no other routing device.
Previously I had DSL modem that did DHCP (Issued IPs) but did not do WiFi so I had a Wifi Router, which also did DHCP by default. This is two overlapping subnets (modem > Router > Computers(s) AND Router > Computer)
Because the WiFi router is effectively fairly dumb it passes on any routing info from the modem.
This means the computer(s) get two IPs although System Preferences > Network can only show one.
What I did was set the DSL Modem to not do DHCP.
The Router then needs the IP of the Modem (Gateway), the DNS servers, the Subnet Mask entered in the boxes that usually appear for Static Routing. You also need to tell the Router to use on IP that is in the range the Modem is using.
This stops the overlapping subnets and makes the LAN more Linear.
Modem > router followed by Router to Computers(s)
Now your Mac Pro is taking the place of a Router and arguably a WiFi Base Station.
Re 1)
If Internet Sharing is set to do Ethernet (from Modem to Mac Pro) to Wifi I can't see that it can be set to do Ethernet (1 as you call it) to Ethernet (2) to get to the Airport Base Station.
I take it the Airport Base Station cannot "See" the Mac Pro's Wifi ?
Ideally it should be set to Bridge (Off) Mode - Not doing DHCP) so that it extends the range of the Mac Pro's WiFi network.
Re 2)
If the Base Station was in Bridge Mode then all the other house's computers would get IPs from the Mac Pro's subnet.
If it is Sharing an IP then they get their own Subnet from the Base Station.
Depending on what range the Mac Pro Uses and the Base Station is set to, you may get conflicting IP addresses.
To a certain extent Subnets can be useful as long as they are separated properly and Linear.
Consider it this way.
The Postal Service uses House numbers and street names in overlapping subnets to deliver mail.
The White House (as computer) is in Washington (router) which is in the USA
Now think of a house on a corner plot. Before city planners or postal service gets their hands on it it possibly could be considered to be house 30 Main Street as well as house 1 Side Avenue. Technically a letter could be addressed to either 1, Side Ave or 30, Main Street, Imaginary Little Town.
On the other hand the upstairs of you house is part of that house (in the same LAN) However it can only be accessed by the stairs (Separate, linear Subnet).
Certain apps can deal with/ignore overlapping subnets but others need the set up to be more linear. (iChat and other IM apps are one sort)
I hope this helps some more.
8:20 PM Monday; April 19, 2010

Sharing my internet connection via Airport

I have an Intel MacPro with an Airport card. It is connnected to the internet via one of its ethernet ports. I am trying to share that internet connection via the Airport card with my Windows XP machine. I was able set up the wireless connection using 128-bit encryption, and successully access websites from my Windows XP laptop. However, it seems that neither AIM nor Yahoo Messenger nor MSN IM on my Windows machine can connect via the MacPro internet sharing. I can only use a web browser on the Windows machine successfully. Is there some additional configuration I need to do get the internet connection sharing to handle other kinds of connectsions, rather than just web pages?
Paul
Mac Pro 266 GHz Quad Xeon Mac OS X (10.4.8)

I'll admit that I'm merely guessing here. Are you running the firewall on your Mac? It is possible the firewall is blocking the ports that the messaging software is using. If your firewall is on turn it off and try using the Yahoo and/or MSN messaging software. If it now works see if you can determine what ports are being used and edit your firewall to keep those ports open.

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