Time Capsule is Slower and has a Weaker Signal than Airport Express

I have been using an airport express (g) without any problems for several years and usually get full signal strength throughout my small manhattan apartment. I recently decided to upgrade to a Time Capsule. I set it up and found that signal was weak and data transfer was slow. After rebooting it and installing the firmware update, things did not get any better. I took my laptop and TC to the Apple Store and they set it up again for me. In the Apple store, I found that the connection was strong and that the data was extremely fast. When I brought the unit back, I was only able to connect with a few bars (4) and found the data transfers to be extremely slow, practically unusable. I'm not sure what to do, I think there's something interfering with the signal but then again, I put the TC right where the old AirPort Express used to deliver a strong (full) signal.
Any suggestions?

I set the Time Capsule to channel 11 from automatic. Since then, the Time Capsule has been working perfectly. I love it.

Similar Messages

  • Time capsule is slow and inconsistent

    It seems that the wifi is much slower than my old airport extreme, and inconsistent in terms of connectibility and strength. Any hints? I've been at this for two days.

    All,
    Maybe trying some of these suggestions will help?
    *_Slow Time Capsule Transfer Speeds_*
    *Initial Backup Best Over Ethernet*
    It is recommended that you perform the initial full backup via ethernet, then all subsequent backups via wireless.
    *Transmit Power & Wide Channels*
    If you are using the 802.11n only (5 GHz) radio mode, you can also select to use wide channels, which provide higher data throughput in your network.
    Launch Airport Utility
    Select your Time Capsule on the left.
    Click “Manual Setup”.
    Select “Airport” in the toolbar.
    Click the “Wireless” tab.
    Click “Wireless Options...” at the bottom of the window.
    Adjust the “Transmit Power” to 100%.
    Put a check mark in the box labeled “Use Wide Channels”.
    Click “Done”.
    Click “Update” in the lower right hand corner.
    Wait for the Time Capsule to restart and then see if your network speeds improve.
    *Anti-Virus Software*
    Are you running anti-virus software. Disable it and see if network speeds improve. The discussion boards are filled with users who are experiencing degraded network speeds due to their anti-virus software.
    One poster observed: “I had the exact same problem 5mins ago, it had taken 2 hours to back up 2GB, I realized I installed Sophos anti virus a couple of days ago. When I turned that off my back up is speeding through.”
    Another contributor stated, “I am doing the first backup to my time capsule, about 71 Gb, It seems to be going about 1 Gb per hour. is this seem OK? I tried the ethernet connection and the speed was about the same. It has been going all night and after 12 hours it is at only 12 Gb of 71….I found the problem, I uninstalled Norton and the problem went away. It backed up in about 3 or 4 hours”
    *Wireless Security Issue*
    Some who have experienced degraded network speeds have isolated the problem to their wireless security setup. Try this:
    Launch Airport Utility
    Select your Time Capsule on the left.
    Click “Manual Setup”.
    Select “Airport” in the toolbar.
    Click the “Wireless” tab.
    Change “Wireless Security” to “None”.
    Click “Update” in the lower right hand corner.
    Wait for the Time Capsule to restart and then see if your network speeds improve.
    Granted, this is far from desirable. But it does help to isolate the problem in you instance. Maybe simply resetting the security with a new password will help?
    Let us know if any of these procedures helped.
    Cheers!

  • Weak signal from Airport Express on extended network

    I'm receiving only 2 bars from my Airport Express even with devices right next to it (see attached pics). I've reset the Airport Express and the extended network setup goes fine there's just a weak signal. If I take my devices to the modem router I get a full signal. Any ideas?
    iPhone 5S
    iPad Air 2
    Cisco Linksys Dual band wireless N modem Gigabit router

    The AirPort Express does work with virtually any wireless router for AirPlay or a remote printer.
    Unfortunately, you must have missed the following clear statement in the product information for the AirPort Express regarding extending a network.
    If you already have a wireless network in your home and want to extend its range, AirPort Express can help. Just place it in range of your primary base station — an AirPort Extreme, AirPort Time Capsule, or another AirPort Express
    http://www.apple.com/airport-express/

  • My MacBook Pro is currently online via wifi, but the airport utility doesn't recognize the airport time capsule base station and has not backed up in 10 days

    My early 2011 MacBook Pro 15 inch is currently online, with good (albeit slow... although that is due to the service provider) internet connectivity via wifi.  The icon shows that I am connected to my network with full bars.  I use an Airport Time Capsule as my wireless router, purchased late last year, and it has worked well until now.  Internet comes via cable modem (provided by the cable company), and can be patchy and quirky, so I am often rebooting the modem, but the airport wifi router typically does not need to be rebooted with the modem to regain connectivity.
    My problem is that my time capsule has not backed up in more than 10 days.  When I went to investigate this, it claims it cannot find the time capsule.  when I open the airport utility on the laptop it claims there is no airport connected (although there is the green light next to the internet icon).  I checked on this using the airport utility app on my iPad, and it has no problem identifying the router as an airport time capsule.  I did update the firmware on the router using the app on the iPad, but it made no difference to the laptop.
    First question: Do you think this is a problem with the Airport router or my MacBook?
    Second Question: what can I do about it?
    My MacBook feels like it is on its last legs anyway, so I am currently looking at replacements, but I really want to make sure it is backed up in case it dies before the new one arrives!!  On the other hand, we have serious power issues here, and while the router is on a UPS, the UPS battery is basically fried and conks out in about 5 minutes, so the Airport is constantly being cycled on and off, which I worry could also be causing problems with the proper operation of the device (although the fact that it works with the iPad makes me think that is not the case... but I don't really know).
    Thanks!

    My early 2011 MacBook Pro 15 inch is currently online, with good (albeit slow... although that is due to the service provider) internet connectivity via wifi.  The icon shows that I am connected to my network with full bars.  I use an Airport Time Capsule as my wireless router, purchased late last year, and it has worked well until now.  Internet comes via cable modem (provided by the cable company), and can be patchy and quirky, so I am often rebooting the modem, but the airport wifi router typically does not need to be rebooted with the modem to regain connectivity.
    My problem is that my time capsule has not backed up in more than 10 days.  When I went to investigate this, it claims it cannot find the time capsule.  when I open the airport utility on the laptop it claims there is no airport connected (although there is the green light next to the internet icon).  I checked on this using the airport utility app on my iPad, and it has no problem identifying the router as an airport time capsule.  I did update the firmware on the router using the app on the iPad, but it made no difference to the laptop.
    First question: Do you think this is a problem with the Airport router or my MacBook?
    Second Question: what can I do about it?
    My MacBook feels like it is on its last legs anyway, so I am currently looking at replacements, but I really want to make sure it is backed up in case it dies before the new one arrives!!  On the other hand, we have serious power issues here, and while the router is on a UPS, the UPS battery is basically fried and conks out in about 5 minutes, so the Airport is constantly being cycled on and off, which I worry could also be causing problems with the proper operation of the device (although the fact that it works with the iPad makes me think that is not the case... but I don't really know).
    Thanks!

  • Time capsule running slow and backing up whole disc each time

    I am on a Powerbook running Mac 0SX 10.6.8.
    My time capsule back ups now take hours and appear to be backing up hundreds of files and many GBts each time, even if I run it straight after a previous back up with no file changes made.
    Does anyone have any suggestions of anything I can try?
    Thanks
    Tom

    Load the widget to get actual log info from the TM.
    A1 http://pondini.org/TM/Troubleshooting.html
    Also do a verify disk.. both the computer hard disk.. and the TC sparsebundle.. See A4.

  • IPod Touch has Weak Signal on Airport Express

    I have the following:
    1. Airport Express with 802.11n Wi-Fi (Version 7.3.2)
    2. iPod Touch running Software Update 2.2
    3. iPhone 3G 16GB running Software Update 2.2
    My iPhone can connect to the Airport Express with no problems at all. The signal is very strong and the connection is excellent. However, the signal on the iPod Touch is very, very weak and drops out all the time. In fact, I can be standing right next to the Airport Express and the signal can be very weak. This does not seem right. What do I have to do to ensure that my iPod Touch as the same signal strength as my iPhone? Thanks

    That definitely helped a bit. I guess I get one more bar than I got before. However, it is still significantly weaker than the iPhone and is still a bit inconsistent. That was a very good tip though, thanks

  • Time Capsule - Very slow and eventually unresponsive over wi-fi.

    Hi,
    I've been using my TC for some time now, but it was the first time I had to recover a file. I know it's slow as **** to backup over wi-fi and that it takes aaages to "prepare" the backup. Also I did the initial backup using a cable and not wi-fi.
    My question is: Why is it SO slow to browse and restore small files from a not-so-far-away backup, like, from yesterday? First, when I tried to browse the previous versions of the file it took aaaages to show the contents of the folder and eventually crashed while I stared incredulous the screen...
    Then when I tried again it took it a very long time to browse the folder (I went for a coffee...) and then another 5 minutes to restore a very small file.
    I know it's not supposed to be blinking fast, but it's borderline unusable. Isn't it supposed to be at least "not annoying"?

    Experiencing the same problem. Drag/Dropping a 30Mb file from my HD to TC takes about a minute. Tried about all suggestions and didn't see an improvement. TC is in 5GHZ n mode with only my iMac as a client. Speeds should be around 9 Mb/s instead of the 0.5 Mb/s I'm observing. I've switched off Spotlight indexing for TC, de-activated the Airport status indicator, did several hard resets of TC and put ACK at zero instead of the default value of 3. No major impact; my 30Mb file continues to be transferred in around 60 seconds from iMac to TC. I read one comment that TC might be sensitive to heat, so my next trial-and-error initiative will be to put TC in a cooler spot to see if this has an effect. I'm very eager to learn how to get TC up to 9 Mb/s and hope Apple will pick up on this discussion. I assume they're very aware of the issue as there's quite some discussion going on on this topic. One thing I also tried was downgrading TC firmware to a more stable version, where Airport Extreme v5.5 was advised. I didn't succeed, assuming this old version is not compatible with my Intel Mac. I would like to know if there's a stable robust throughput firmware version available for TC I could downgrade to...??

  • Time Capsule flashes amber (slow) and not being picked up by Airport Utility; cannot set up Time Capsule

    Airport Time Capsule purchased in Canada, trying to set up in home in Mexico.  Connected to isp via ethernet cable, tried resets and power off/on on both TC and isp modem.  TC flashes amber (slow), and is not picked up by Airport Utility on Macbook or iPad.  Do I have a faulty TC that has to be returned?  Wireless signal from provider is strong and reliable for last 5 yrs.  Please help

    Got it figured :-)  Unable to pick up TC via Airport Utility on MacBook Pro or iPad. Used iPad via Settings-WiFi to pick up TC and enter edit functions. Once WAN deselected, Bridge selected, DHCP selected got the steady green light on the TC.  Airport utility now picks up the TC no problem on both iPad and Macbook.  System now fully operational.

  • Mackeeper has detected a virus in the time capsule back up - it is not possible to dele - it ite the file. Do I find time capsule in finder and delete the whole computer back up, then crate a fresh back up? Is that the only solution please?

    mackeeper has detected a virus in the time capsule backup, it is not possible to delete the infected file. Do I mount time capsule in finder and then consign to junk the whole computer backup then create a fresh backup? Is that the only solution please.

    Follow these instructions to uninstall MacKeeper. They have been tested with the most recent version of MacKeeper. Earlier versions than the one released in 2012 require more extensive work to uninstall all its components. Never install such junk on a Mac.
    If you actually used MacKeeper to alter your system, e.g. "remove excess binaries" or such, you will need to reinstall OS X as well as all your additional software. Uninstalling MacKeeper is insufficient to reverse the corruption it is capable of - once again, that is if you used it.
    If you merely installed MacKeeper but did not use it to perform any particular action, the following instructions will suffice.
    If you used MacKeeper to encrypt any files or folders, use MacKeeper to un-encrypt them first.
    Quit the MacKeeper app if it is running.
    Open your Applications folder: Using the Finder's Go menu, select Applications.
    Drag the MacKeeper icon from your Applications folder (not the Dock) to the Trash.
    You will be asked to authenticate (twice):
    You do not need to provide a reason for uninstalling it:
    Just click the Uninstall MacKeeper button. You will be asked to authenticate again.
    After it uninstalls you may empty the Trash and restart your Mac. All that will remain is an inert log file that does nothing but occupy space on your hard disk.
    May I suggest that you review the following setting in System Preferences?
    Although you may easily override that setting, it will serve to protect you from inadvertently installing garbage. The overwhelming majority of Macs I come across have the MacKeeper installer file already present in their Downloads folder, often multiple copies of it. The downloaded file itself can do nothing until it is opened and installed, and the above setting (known as Gatekeeper - not to be confused with MacKeeper) will prevent that from occurring.

  • Time Capsule Network SLOWS

    I have a 1 TB Time Capsule (purchased July 08) directly connected via ethernet cable to a broadband cable network; I use the TC for my home wireless network. Speed of download/upload will change over time. I test on www.speakeasy.net/speedtest and find that download speed will start around 10 mbps, then slow to ~1 mbps over the course of a few days. If I power off the time capsule (unplug it) wait a few seconds; power back on (plug back in), the upload speed returns to ~10 mbps. Upload speed does not change as drastically.
    Any thoughts, ideas as to what's happening? How to handle? This doesn't seem like something I should have to routinely do (power on/off the TC).
    Thanks.

    *_Time Capsule Weak Signal Strength / Dropped Connections_*
    Forgive the size of the post, but the suggestions below have helped others with similar issues. Try each topic individually and see if things improve, If not move on to the next one.
    *Keep the Time Capsule Cool*
    Some posters have observed that when they positioned the Time Capsule for better ventilation and cooling, their network connectivity issues resolved themselves. Also avoid locating the devise within poorly ventilated cabinets or piling items around or on top of it.
    *Time Capsule Orientation*
    While the location you chose to setup your Time Capsule may be acceptable, but the direction it is oriented can have an effect on signal strength. It appears that the signal of the Time Capsule does not radiate equally from all sides of the devise.
    The antennas within the devise are positioned along the 3 smooth sides. That is, there is no antenna on the side bearing the ports and cables. As a result, position the devise with the ports and cables AWAY from the direction of most of the clients that will be connecting to it.
    *Cordless Phones*
    Some users have discovered that the cordless phones they have in the home occupy or are near the same bandwidth as their wireless network (2.4Ghz or 5Ghz). Try temporarily disabling the handsets and their bases and see if network connectivity improves. If so you may need to change the channel that the phone uses or purchase phones that occupy a different bandwidth.
    *Proximity To Other Devices*
    One poster observed: “Finally have full access, full speed, and full functionality. Initially I installed the Time Capsule at the location of my cable, cable modem... which of course was next to my HDTV, DVD, Apple TV, Amplifier, etc. Get the picture? After about 4 weeks of starts and stops, resets and repeated initial backups, I moved the unit to another location, closer to my Mac, and in an area where there are no other electronics. Now, it runs perfect.” [http://discussions.apple.com/thread.jspa?threadID=1734818&tstart=0]
    *Change Firewall Settings* #
    Go to System Preferences --> Security.
    Click the Firewall tab.
    Change setting to “Set access for specific services and applications”.
    The System will now ask you when each process wants to penetrate the firewall. Once you click “Allow” each time you are asked, it will be saved in the pane at the bottom of this window and it should never ask you again.
    One poster observed, “Since I made this change, my wireless has been strong and Time Machine works like a champ and the impact on my network performance is minimal. I speculate that the change in performance is due to security protocols or services that run in the 'allow all incoming connections' and 'allow only essential services' modes. Whatever the reason this fix has worked for me for over 2 months without resetting my airport connection or time capsule.” [http://discussions.apple.com/thread.jspa?messageID=8348496#8348496]
    *Change Time Capsules’ Channel*
    Launch Airport Utility.
    Select the device on the left.
    Click "Manual Setup."
    Select “Airport” in the toolbar.
    Click the "Wireless" tab.
    If “Channel” is set to “Automatic” try changing to a different one. Holding the Option key down and clicking the drop-down menu should provide more channels to choose from. If you have another wireless router operating, ensure that each devices’ channels are as far apart as possible.
    Click “Update”.
    Close Airport Utility.
    *Preferred Networks & Airport Services*
    You may be experiencing interference from other networks in your neighborhood. When you click the Airport menu are there other networks listed other than your own?
    If so, is your network at the top of the list? It should be.
    Go to System Preferences --> Network --> Select Airport on the left.
    Click "Advanced". In the “Airport” tab note the various local wireless networks that Airport detects. Is the network you prefer to connect to at the top of the list? If not drag it to the top. Are there other networks you never intend to connect to (an old work network, or a neighbors network)? Then highlight them and click the "-" button.
    Make sure “Remember any network this computer has joined” is checked.
    Click "OK".
    For "Network Name" be sure your network is selected and then click "Apply".
    Is Airport (wireless) your primary means of connecting to your network? If so, is Airport at the top of the list of services on the left? It should be.
    Click the small “Gear” button at the bottom of the window and select “Set Service Order”.
    Now drag Airport to the top of the list.
    Click “OK”. Click “Apply”.
    Now see if network connectivity has improved.
    *Transmit Power & Wide Channels*
    If you are using the 802.11n only (5GHz) radio mode, you can also select to use wide channels, which provide higher data throughput in your network.
    Launch Airport Utility
    Select your Time Capsule on the left.
    Click “Manual Setup”.
    Select “Airport” in the toolbar.
    Click the “Wireless” tab.
    Click “Wireless Options...” at the bottom of the window.
    Adjust the “Transmit Power” to 100%.
    Put a check mark in the box labeled “Use Wide Channels”. (If you are using a 802.11a/b/g (2.4GHz) radio mode then select “Interference Robustness”)
    Click “Done”.
    Click “Update” in the lower right hand corner.
    Wait for the Time Capsule to restart and then see if your network speeds improve.
    *Faulty Airport Card*
    One poster reported: “I reckoned the fault must be with the Macbook’s hardware so took the plunge and got a new airport card fitted to my Macbook and now everything is working fine. At last I have a working Macbook!” [http://discussions.apple.com/thread.jspa?threadID=1719326&tstart=0]
    If you think this might be the case, follow the steps outlined in this KB article to determine if your Airport card is still being detected by your system:
    [http://support.apple.com/kb/HT2601]
    Let us know if any of the above helped improve your situation.

  • Internet Speed Through Time Capsule Much Slower than Direct Ethernet

    My internet download and streaming speed is pitifully slow. I'm connected by an 802.11n wireless network based in my 1TB Time Capsule. I swear it used to be faster, and has been slowing down. When I'm connected directly to my cable modem via ethernet, I'm getting T1 speeds. But through the TC, I'm getting bad DSL speeds. I originally set up my network automatic defaults. I've tried setting static DNS settings (according to a discussion thread that seems to have worked for others), changing airport channels, rebooting, etc., and nothing helps.
    I haven't located much about this problem in other discussions; any threads I have found are mainly unanswered. Am I missing something? Can anyone help?

    Weejun wrote:
    My internet download and streaming speed is pitifully slow. I'm connected by an 802.11n wireless network based in my 1TB Time Capsule. I swear it used to be faster, and has been slowing down. When I'm connected directly to my cable modem via ethernet, I'm getting T1 speeds. But through the TC, I'm getting bad DSL speeds.
    That may be due to a weak WiFi signal. To provide a third data point, connect your MacBook Pro to the a LAN port of the Time Capsule with an Ethernet cable, turn off your Mac's AirPort circuitry, and rerun your speed tests. That will allow you to separate the effect of a wireless connection from the effect of the Time Capsule.
    I'd also investigate the signal strength and noise of your wireless connection as described in this post:
    http://discussions.apple.com/thread.jspa?threadID=2347845&start=1

  • My time capsule is full and when I attempt to back up, I only receive a preparing back up message and the earliest and most recent back up dates remain the same.  Why are the oldest backups not being deleted to make room for the newest backups?

    My time capsule is full and when I attempt to back up, I only receive a preparing back up message and the earliest and most recent back up dates remain the same.  Why are the oldest backups not being deleted to make room for the newest backups?

    linda mariefromharper woods wrote:
    My time capsule is full and when I attempt to back up, I only receive a preparing back up message and the earliest and most recent back up dates remain the same.  Why are the oldest backups not being deleted to make room for the newest backups?
    It may be in the process of making room.  What version of OSX are you on?    (That process can be excruciatingly slow on Leopard or Snow Leopard backups over a network;  Lion has improved it greatly.)
    A clue may be lurking in your logs.  Use the widget in #A1 of  Time Machine - Troubleshooting to display the backup messages from your logs.   That should help you figure out what's going on.  If in doubt, copy and post them here (but if the same ones repeat over and over, drop most of the duplicates).
    If you can, connect via Ethernet; it will be 2-3 times faster.

  • Time Capsule Access Control and Extended Network Question

    I have a Time Capsule where I have set up a wireless network access list…and extended the network using an Airport Express unit. The Airport Express unit also has settings for an Access Control list. Do these need to be the same as the those for the network from TC that it is extending…or does that happen automatically…and if not what on earth are they for?
    Thanks for any help…this doesn't seem clear from what I've read/seen.
    James

    I have a Time Capsule where I have set up a wireless network access list…and extended the network using an Airport Express unit. The Airport Express unit also has settings for an Access Control list. Do these need to be the same as the those for the network from TC that it is extending…or does that happen automatically…and if not what on earth are they for?
    Unfortunately, they are not automatically applied to each base station in an extended network. You would have to manually enter the exact same list in each base station.

  • How to setup apple time capsule with FIOSinternet and VZ router?)

    Hello,
    I have Apple time capsule and the VZ Router MI424WR. I current set up:
    1. VZ router - wireless off, the rest is standard
    2. Time capsule: Wireless on in Bridge mode
    Result: Internet works but the wireless network is very in-stable. Airtunes is nearly not usable.
    I searched in the Internet and there was several comments that is is not a good combination. Therefore it is recommended to convert the VZ router in a modem mode and use only the Time capsule as the router. I tried this several times I do not get it to work. I followed this procedure (http://data.agaric.com/node/2160) but then I need the PPPoE Account number and password. But there do I get this? The Verizon support was not really helpful.
    Please, is there a good and complete description to solve that issue?
    Thanks in advance
    Moebius

    Go back to your first setup ...
    Verizon router with wireless turned off
    Apple Time Casule with wireless turned on
    Method 1:
    With the Time Capsule in "Bridge Mode", if I remember correctly, you should connect the WAN port to one of the open ports on the Verizon router (I believe bridge mode also turns off the DHCP server on the Time Capsule, if not, find that and turn if off as well).   Change the addressing mode for the Time Capsule to "static" and assign it an address on the LAN which is not in use (choose something you know is out of the way but on the LAN -- I suggest 192.168.1.180 to start -- you can change it once you get everything working).
    If it doesn't work this way for you, move the cable from the WAN port on the Time Capsule to Port 1 and try again.
    Method 2:
    This results in a router behind a router setup, but unless you have devices connected directly to the Verizon router, it shouldn't be a problem.  
    With the Time Capsule disconnected from the Verizon router, turn on "Connection Sharing" (not bridge mode) and make sure DHCP is enabled on the Time Capsule.  You need to change the address range being used by the Time Capsule (which I think defaults to 192.168.1.x to another network -- I suggest, 192.168.2.x with a netmask of 255.255.255.0 and give the router an address of 192.168.2.1 on the LAN side.  Now, connection the WAN port to one of the Verizon router LAN ports.  If you had anything connected to the Verizon LAN ports, move those over to the LAN ports on the Time Capsule and reboot them.
    Method 3:
    This is the least desirable of the scenarios because it relies on Verizon's crappy radio in their router (the Time Capsule has a much better radio and support 802.11n as well as b and g) whereas Verizon's only support b/g.    Go back to the configuration for Method 1, but also turn OFF wireless on the Time Capsule and turn on wireless on the Verizon router.   Try both bridge scenarios described -- using the WAN port first and if that didn't work, then moving the connection to port 1.
    There is no scenario where you can place the Verizon router behind the Time Capsule -- since I believe Verizon is using all MoCA connections for the WAN side of their connection (you'd have to get Verizon to convert you to ethernet WAN and then they would not support you most likely for any STB issues with your FiOS if the Time Capsule was between the ONT and their router ... so don't even bother wasting time there ... more headaches than it would be worth.
    If you're still not sure exactly what each configuration screen on the time capsule should say, post some screen snaps (or the configuration settings/choices which you are unsure about and someone will likely know the answer here).

  • Time Capsule flashes amber and loses connection at least once a day

    Hello,
    I got my Time Capsule a month ago. I had an old one from 2008 which I gave to a friend, so it was time to upgrade. I have no idea what's going on, but the Time Capsule flashes amber and I lose my Internet connection at least once a day, sometimes two or three times within a few hours.
    Is anyone else experiencing this? Any idea how to fix it?
    If it matters, I'm on a mid-2010 MBP running OS X 10.8.5.
    Thanks!

    You and everyone else.
    https://discussions.apple.com/thread/5140686?tstart=0
    It is not stable firmware.. or has issues .. with some modems.. or is just faulty.. pick one or two choices.
    There is no fix because this is really a bug.

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