Internet access dies after short period of non use.

On my late 2008 MacPro, Yosemite.  When I leave the computer for 10 or 15 minutes or so (never really timed it), upon return there is no internet activity.  It resumes about two minutes after an internet request is made, either a check mail or webpage request, and I have to sit there and wait. Then it is back to normal speed as long as I continue using the internet.  I check in with my machine many times in a day and this is driving me crazy.  During the wait, I look at my connection and it says it is actively connected to the internet and displays an IP address.  My other devices and computers sharing the same modem (both wireless and ethernet wired) never have this issue.  I've switched from ethernet cable to wireless and back since I'm hooked to both and no difference. I've quit and re-opened Mail and Safari. No help. The machine just waits for a long time before activity returns again even though it says it is connected.  I've checked the obvious places, but I'm stumped with this one.  Thanks for any advice.

Does it happen when connected to another network?
Does it happen with other devices connected to your network?
Sounds like a network problem to me.
BTW, this is the Mac Pro desktop fporum

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    S

  • No internet access for laptop when another device is using wifi

    we have both an airport and an at&t "2wire" modem. The airport is plugged into the wall outlet, the modem is connected by a wire to the airport. The modem has a wifi network and that's the network that we connect each of our apple devices to (laptop, iphone, a couple of ipads). when the ipad or iphone is using the wifi, we can't get internet access on our laptop. we just get an error message like "another device is currently using your wireless." any idea why this is happening? the only way to then fix the problem and get internet access on the laptop is to turn off the wifi on the other device, unplug and then plug in the airport, and restart the laptop. 

    Thanks for the update. If you want to use the AirPort Express to extend the range of the wireless network provided by the 2Wire modem (actually a combination modem & wireless router or gateway) that is possible. What you would have then is a single network with greater range to cover your entire home (hopefully.) This should also resolve the issue with not all of your network clients being unable to connect.
    Since you have the two network devices already interconnected by Ethernet (wire), you just need to configure them both for a "roaming" network. Please check out the following Apple Support article for details.

  • Songs not visible after a few days non-use

    I've heard about this "problem" (i.e. apparent built-in functionality) of the iPod, but have just experienced it for the first time. I've not used my iPod for about a week and today when I went to turn it on none of my music was visible. I'm sure it is all still there because the space is being used on the disk (I can see that via Windows Explorer), but there is nothing to listen to. Someone told me in the past that the iPod hides all audio files as a form of theft protection or similar if it isn't used for a certain number of days. To me it is just annoying. If anyone could provide a fix (especially if it doesn't involve reformatting the drive), I'd appreciate it.
    For bonus points: I'd like to ideally solve this without using iTunes. I very happily use Winamp with an iPod support plugin (http://mlipod.com/) to manage my music library and syncing with iTunes will completely mess up months of organizing. If anyone has a solution for this "no music" problem, I'm all ears.
    Thanks!
    iPod 4th generation Windows XP Pro Using Winamp for library management

    Update: iTunes could also not recognize the iPod even with the latest firmware installed. I had no choice but to do a restore to factory state, which wiped my hard drive clean and required me to spend about an hour restoring about 10GB of files. Thanks, Apple!
    Although it seems this may have been a software/firmware problem with the iPod, I'm still interested in whether or not anyone has heard of songs being hidden after X days of iPod non-use. Is it just an urban legend or, in fact, true? Is there a way to deactivate such a stupid feature to avoid future calamties?
    Thanks!

  • Very Strange Internet Access Behavior After upgrade to systemd

    Currently I'm having very strange issues with my wireless connection. Currently, if I connect using netcfg to a wireless access point, I have the following behavior:
      1. chromium can connect to any website
      2. thunderbird can send/receive emails
      3. curl, firefox and opera can connect to some https sites but not http (yes: https://www.facebook.com, https://bbs.archlinux.org, no: https://archlinux.org, https://github.com)
      4. wget does not connect, neither does pacman -Syu
    after I upgraded to systemd, I was getting errors because of groups, so I removed extra groups. Here's what I have now:
    There is currently no rc.conf in /etc
    $ id ambantis
    uid=1000(ambantis) gid=100(users) groups=100(users)
    $ id root
    uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),19(log),1000(wheel)
    If I try to remove the wheel group, then netcfg does not allow me to connect, neither can I connect manually with wpa_supplicant and dhcpcd
    Here's the output of $ systemctrl
    UNIT                                                                                        LOAD   ACTIVE SUB       JOB DESCRIPTION
    proc-sys-fs-binfmt_misc.automount                                                           loaded active waiting       Arbitrary Executable File Formats File System Automount Point
    sys-devices-pci0000:00-0000:00:16.3-tty-ttyS0.device                                        loaded active plugged       5 Series/3400 Series Chipset KT Controller
    sys-devices-pci0000:00-0000:00:19.0-net-eth0.device                                         loaded active plugged       82577LM Gigabit Network Connection
    sys-devices-pci0000:00-0000:00:1a.0-usb1-1\x2d1-1\x2d1.4-1\x2d1.4:1.0-bluetooth-hci0.device loaded active plugged       /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/bluetooth/hci0
    sys-devices-pci0000:00-0000:00:1b.0-sound-card0.device                                      loaded active plugged       5 Series/3400 Series Chipset High Definition Audio
    sys-devices-pci0000:00-0000:00:1c.1-0000:03:00.0-net-wlan0.device                           loaded active plugged       RTL8191SEvB Wireless LAN Controller
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda1.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda2.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda3.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda4.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda5.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda6.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda7.device    loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda.device         loaded active plugged       ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata2-host1-target1:0:0-1:0:0:0-block-sr0.device         loaded active plugged       HL-DT-ST_DVDRAM_GU40N
    sys-devices-platform-serial8250-tty-ttyS1.device                                            loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS1
    sys-devices-platform-serial8250-tty-ttyS2.device                                            loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS2
    sys-devices-platform-serial8250-tty-ttyS3.device                                            loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS3
    sys-devices-platform-thinkpad_acpi-sound-card29.device                                      loaded active plugged       /sys/devices/platform/thinkpad_acpi/sound/card29
    sys-module-fuse.device                                                                      loaded active plugged       /sys/module/fuse
    sys-subsystem-bluetooth-devices-hci0.device                                                 loaded active plugged       /sys/subsystem/bluetooth/devices/hci0
    sys-subsystem-net-devices-eth0.device                                                       loaded active plugged       82577LM Gigabit Network Connection
    sys-subsystem-net-devices-wlan0.device                                                      loaded active plugged       RTL8191SEvB Wireless LAN Controller
    -.mount                                                                                     loaded active mounted       /
    boot.mount                                                                                  loaded active mounted       /boot
    dev-hugepages.mount                                                                         loaded active mounted       Huge Pages File System
    dev-mqueue.mount                                                                            loaded active mounted       POSIX Message Queue File System
    home.mount                                                                                  loaded active mounted       /home
    run-user-1000-gvfs.mount                                                                    loaded active mounted       /run/user/1000/gvfs
    sys-fs-fuse-connections.mount                                                               loaded active mounted       FUSE Control File System
    sys-kernel-debug.mount                                                                      loaded active mounted       Debug File System
    tmp.mount                                                                                   loaded active mounted       /tmp
    cups.path                                                                                   loaded active running       CUPS Printer Service Spool
    systemd-ask-password-console.path                                                           loaded active waiting       Dispatch Password Requests to Console Directory Watch
    systemd-ask-password-wall.path                                                              loaded active waiting       Forward Password Requests to Wall Directory Watch
    colord.service                                                                              loaded active running       Manage, Install and Generate Color Profiles
    console-kit-log-system-start.service                                                        loaded active exited        Console System Startup Logging
    cronie.service                                                                              loaded active running       Periodic Command Scheduler
    cups.service                                                                                loaded active running       CUPS Printing Service
    dbus.service                                                                                loaded active running       D-Bus System Message Bus
    [email protected]                                                                          loaded active running       Getty on tty1
    healthd.service                                                                             loaded active running       A daemon which can be used to alert you in the event of a hardware health monitoring alarm
    netcfg.service                                                                              loaded active exited        Netcfg multi-profile daemon
    ntpd.service                                                                                loaded active running       Network Time Service
    polkit.service                                                                              loaded active running       Authorization Manager
    slim.service                                                                                loaded active running       SLiM Simple Login Manager
    sshd.service                                                                                loaded active running       OpenSSH Daemon
    syslog-ng.service                                                                           loaded active running       System Logger Daemon
    systemd-journald.service                                                                    loaded active running       Journal Service
    systemd-logind.service                                                                      loaded active running       Login Service
    systemd-modules-load.service                                                                loaded active exited        Load Kernel Modules
    systemd-remount-fs.service                                                                  loaded active exited        Remount Root and Kernel File Systems
    systemd-sysctl.service                                                                      loaded active exited        Apply Kernel Variables
    systemd-tmpfiles-setup.service                                                              loaded active exited        Recreate Volatile Files and Directories
    systemd-udev-trigger.service                                                                loaded active exited        udev Coldplug all Devices
    systemd-udevd.service                                                                       loaded active running       udev Kernel Device Manager
    systemd-user-sessions.service                                                               loaded active exited        Permit User Sessions
    systemd-vconsole-setup.service                                                              loaded active exited        Setup Virtual Console
    udisks2.service                                                                             loaded active running       Disk Manager
    upower.service                                                                              loaded active running       Daemon for power management
    cups.socket                                                                                 loaded active listening     CUPS Printing Service Sockets
    dbus.socket                                                                                 loaded active running       D-Bus System Message Bus Socket
    syslog.socket                                                                               loaded active running       Syslog Socket
    systemd-initctl.socket                                                                      loaded active listening     /dev/initctl Compatibility Named Pipe
    systemd-journald.socket                                                                     loaded active running       Journal Socket
    systemd-shutdownd.socket                                                                    loaded active listening     Delayed Shutdown Socket
    systemd-udevd-control.socket                                                                loaded active listening     udev Control Socket
    systemd-udevd-kernel.socket                                                                 loaded active running       udev Kernel Socket
    dev-sda5.swap                                                                               loaded active active        /dev/sda5
    basic.target                                                                                loaded active active        Basic System
    bluetooth.target                                                                            loaded active active        Bluetooth
    cryptsetup.target                                                                           loaded active active        Encrypted Volumes
    getty.target                                                                                loaded active active        Login Prompts
    graphical.target                                                                            loaded active active        Graphical Interface
    local-fs-pre.target                                                                         loaded active active        Local File Systems (Pre)
    local-fs.target                                                                             loaded active active        Local File Systems
    multi-user.target                                                                           loaded active active        Multi-User
    network.target                                                                              loaded active active        Network
    remote-fs.target                                                                            loaded active active        Remote File Systems
    sockets.target                                                                              loaded active active        Sockets
    sound.target                                                                                loaded active active        Sound Card
    swap.target                                                                                 loaded active active        Swap
    sysinit.target                                                                              loaded active active        System Initialization
    syslog.target                                                                               loaded active active        Syslog
    systemd-tmpfiles-clean.timer                                                                loaded active waiting       Daily Cleanup of Temporary Directories
    LOAD   = Reflects whether the unit definition was properly loaded.
    ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
    SUB    = The low-level unit activation state, values depend on unit type.
    JOB    = Pending job for the unit.
    85 loaded units listed. Pass --all to see loaded but inactive units, too.
    To show all installed unit files use 'systemctl list-unit-files'.

    UPDATE:
    I've managed to make changes to the passwd file so that uuidd is in fact uuidd (instead of uuid). I've also gone through and restored the groups of postgres and tomcat. I'm still having the same behavior. After booting up, here are the new entries from /var/log/errors.log:
    Nov 21 13:09:55 localhost /usr/sbin/crond[339]: (CRON) INFO (Syslog will be used instead of sendmail.): No such file or directory
    Nov 21 13:16:17 localhost dhcpcd[803]: wlan0: sendmsg: Cannot assign requested address
    Nov 21 13:30:27 localhost dhcpcd[814]: wlan0: sendmsg: Cannot assign requested address
    Nov 21 13:34:28 localhost dhcpcd[1285]: wlan0: sendmsg: Cannot assign requested address
    Also, here's debug info from netcfg:
    [root@okosmos 1000]# NETCFG_DEBUG="yes" netcfg GroundWork
    DEBUG: Loading profile GroundWork
    DEBUG: Configuring interface wlan0
    :: GroundWork up [ BUSY ] DEBUG: status reported to profile_up as:
    DEBUG: Loading profile GroundWork
    DEBUG: Configuring interface wlan0
    DEBUG: wireless_up start_wpa wlan0 /run/network/wpa.wlan0/wpa.conf nl80211,wext
    DEBUG: wireless_up scanning
    DEBUG: wpa_cli -i wlan0 -p /run/wpa_supplicant scan
    DEBUG: wpa_cli -i wlan0 -p /run/wpa_supplicant scan_results
    DEBUG: wpa_find_essid "GroundWork"
    DEBUG: wireless_up Configuration generated at /run/network/wpa.wlan0/wpa.conf
    DEBUG: wireless_up wpa_reconfigure wlan0
    DEBUG: wpa_cli -i wlan0 -p /run/wpa_supplicant reconfigure
    DEBUG: wireless_up ifup
    DEBUG: wireless_up wpa_check
    DEBUG: Loading profile GroundWork
    DEBUG: Configuring interface wlan0
    DEBUG: ethernet_up bring_interface up wlan0
    DEBUG: ethernet_up dhcpcd -qL -t 10 wlan0
    DEBUG:
    DEBUG: ethernet_up hostname okosmos
    Finally, here is current output from id and systemctl
    [root@okosmos ~]# id
    uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel),19(log)
    [root@okosmos ~]# id root
    uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel),19(log)
    [root@okosmos ~]# id ambantis
    uid=1000(ambantis) gid=100(users) groups=100(users)
    and $ systemctl
    UNIT LOAD ACTIVE SUB JOB DESCRIPTION
    proc-sys-fs-binfmt_misc.automount loaded active waiting Arbitrary Executable File Formats File System Automount Point
    sys-devices-pci0000:00-0000:00:16.3-tty-ttyS0.device loaded active plugged 5 Series/3400 Series Chipset KT Controller
    sys-devices-pci0000:00-0000:00:19.0-net-eth0.device loaded active plugged 82577LM Gigabit Network Connection
    sys-devices-pci0000:00-0000:00:1a.0-usb1-1\x2d1-1\x2d1.4-1\x2d1.4:1.0-bluetooth-hci0.device loaded active plugged /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/bluetooth/hci0
    sys-devices-pci0000:00-0000:00:1b.0-sound-card0.device loaded active plugged 5 Series/3400 Series Chipset High Definition Audio
    sys-devices-pci0000:00-0000:00:1c.1-0000:03:00.0-net-wlan0.device loaded active plugged RTL8191SEvB Wireless LAN Controller
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda1.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda2.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda3.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda4.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda5.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda6.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda7.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda.device loaded active plugged ST9500420AS
    sys-devices-pci0000:00-0000:00:1f.2-ata2-host1-target1:0:0-1:0:0:0-block-sr0.device loaded active plugged HL-DT-ST_DVDRAM_GU40N
    sys-devices-platform-serial8250-tty-ttyS1.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS1
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