Lost connection to my cable modem

Ok people I am hoping that you can help me out here. Yesterday my Time Capsule stop connecting to the internet through the cable modem. Called Comcast assuming it was there service.  After an extensive check process we determined that service and the cable modem were working correctly.  So then i proceeded to call Apple Support. Again through the check process of all the peices that are connected to finally determine that the TC was the culprit.  I took the TC back to the Apple Store and they graciously exchanged it out.  I took it back home hooked it up and it we are back to where I started, the new TC is responding exactly like the old unit. So my cable modem is a Motorala SB6141 and I have sevice through Comcast.  The cable modem and TC have been working together for 6 months before this happened, with no new hardware added in the last three months. The cable modem when connected to the computer (Mac or Windows) directly can connect to the internet.  I even tried connecting the cable modem to a AirPort Express and it had the same effect as the TC.  So does anybody have any suggestions?

The SB6141 is problematic with the Airport routers.
There is some issue of compatibility.. it is hard to figure out.
If you replace the cable modem with a different one it will be more likely to work. I am not in the US so just look at posts about the more compatible models. Or simply use another brand router, and set the TC in bridge and use it as wireless and backup target.
I do think you can get some improvement in some cases using a crossover cable. I have made that recommendation and it has worked for people.
Or a small 10/100 switch between the two .. cable modem and TC.
https://discussions.apple.com/message/23236139?ac_cid=tw123456#23236139
You need to power cycle the modem whenever you change router.. I am guessing you are doing that.. but just to be sure.. at least 15-30min is required with some ISP.. 5min for others.. some are much longer..
The ISP must drop your previously connected equipment to pick up the new one.

Similar Messages

  • Can i use one router connected to my cable modem and another....

    can i use one router to connect to my cable modem them have another (not connected to a modem) and a wireless reciver so i can plug my xbox 360 into it?

     Yes you can do that ... but you need to configure the computer connect to the Router using Cable ....
    Afterwards ... you can work on mutiple computers ...

  • For the new airport extreme what type of cable do I need to connect to my cable modem. Is Cat5 OK or will that bottle neck things?

    For the new airport extreme what type of cable do I need to connect to my cable modem. Is Cat5 OK or will that bottle neck things?

    Assuming that your cable modem has Gigabit Ethernet ports (possible, but it probably does not) Cat 5e or Cct 6 would do the job that you need.
    If the cable modem is using a 10/100 Mbps port, then Cat5 will be OK.

  • Connecting Help using Cable Modem

    I am trying to connect to the internet using a cable modem. It works fine on my PC but when I try to plug it in to my Macbook, I can't connect. First off I figured I could just plug it in and hit connect, or it would connect automatically. Because the whole reason I got a mac was because of the "easy-ness" surrounding them. So can anyone guide me to somehow connect.

    The problem likely is not your Mac but your cable modem.
    Most cable modems, for some unknown reason, lock themselves to the first device they see. This means that if your PC is the first device to use it, then only the PC can use it - it won't talk to the Mac at all.
    The first solution is simple - power cycle the modem. This resets the lock so the Mac can use it (as long a the Mac is the first device), but then you have the same situation with the PC.
    The better solution is to get a NAT router that can take the connection from the cable modem and share it between both Mac and PC simultaneously. As far as the cable modem is concerned, it only sees the router and the lock does not matter. Numerous vendors make numerous products that will fill this requirement.

  • Can I connect a Vonage / Basic Talk pjone to the USB port on Airport Express that is connected to a cable modem?

    Can I connect a Vonage / Basic Talk pjone to the USB port on Airport Express that is connected to a cable modem?

    No: Uses for the USB port of Time Capsule, AirPort Extreme, AirPort Express

  • I have a Linksys Wrt54gs connected to a Cable modem. it w...

    i have a Linksys Wrt54gs connected to a Cable modem.
    it worked for about 8 months.
    My kid pressed a button by accident and now it won't work.
    the router just keeps resetting.
    i unplugged everything.
    conencted 1 computer, and everything is fine.
    Received DHCP address.
    Once i plug in a second computer it starts rebooting.
    Both computers are set to DHCP.
    NO internet connection is connected at this time for troubleshooting purposes.
    Nothing is connected to the ethernet port on the Linksys router (port for internet access), only 1 and 2 are connected.
    i reset the router and still nothing.
    i can connect 1 computer via wireless and 1 computer via direct connection and all is good. Once 2 devices are connected via direct connections it starts resetting.
    i can even connect the modem to the router (for internet access), and connect to the linksys router via wireless from my computer and get internet access.
    But once i direct connect 2 connections, the router starts resetting.
    i have reset and reboot it with every combination i can think of.

    Its good that its working now.
    If it happens again, try this :
    Press the reset button on the router for 30 seconds. The Power light will start flashing. Turn the Router and the Modem OFF. Turn the modem ON first, wait for 10 seconds, turn the router ON, wait for 10 seconds, you should be ONLINE !!!
    Do this when the computer os connected to the router with a cable.
    than on the computer open Internet Explorer and in the Address Bar type : 192.168.1.1 and hit enter.
    It'll ask for the password. The default password is admin.
    Once in the setup page. Click on the Wireless tab.
    In there Change the Network Mode to mixed. And change the SSID to your name.
    Change the Channel to 11. And Enable the SSID Broadcast.
    Save the settings here. After that Click on Wireless Security and configure it accordingly and Save the settrings.
    Than click on Advanced Wireless Settings. In there Disable the SES function.
    What is the firmware on the router ?
    Click here to see the updated list of firmware.
    For information on upgrading the firmware on the linksys routers :
    http://linksysfirmwares.googlepages.com/upgradingfirmware
    For information on wireless security :
    http://linksysfirmwares.googlepages.com/wirelesssecurity
    Message Edited by theonkar on 08-20-2008 04:48 AM
    C | EH
    linksyshelp.blogspot.com

  • No Connection to the cable modem/Internet with APX

    Hi!
    My Apple Airport Express BaseStation worked properly for some weeks - but from one day to the other, the ethernet connection to the cable modem doesn't work anymore. The cable modem is working properly, there is NO problem. I can connec to the internet vial LAN card of the computer without problems. But my APX has no connection to the cable modem. The flashlight is blinking orange.
    I tried everything - hard reset, soft reset,..... but no change, there is no connectin to the cable modem.
    Does anybody know what to do? Can the APX be defect?
    regards,
    flo

    I found the solution: somehow an old and inactive dhcp-server and dns-server setting messed around with the settings. Once I deleted these settings everything started working normally again

  • WRV54G connection to WCG200 Cable Modem ?

    Has anyone tried setting up their WCG200 with a WRV54G?
    I'm having trouble and I was hoping someone out there has done it successfully.
    Here's what I've done/learned:
    1. I've only had success connecting the vpn router with a straight-thru cable from the ethernet ports. (like hooking up 2 routers)
    2. I've needed to keep the DHCP service on the cable modem in order for it to hit the gateway.
    3. The VPN is set to router (not gateway).
    What I've tried that DIDN'T work:
    a) Used the WAN port on the VPN router to connect to the Cable Modem
    b) Used static addresses instead of DHCP and configuring the VPN router to use the default gateway IP of the cable modem address.
    c) Used separated networks like 192.168.0.x for cable modem and 192.168.1.x for VPN and change the subnet mask to 254.
    d) Firewalls turned off; DMZ set to IP for VPN router
    So, my network is like this:
    10.0.0.1 - Cable Modem
    10.0.0.2 - VPN Router
    10.0.0.3~6 - PCs
    Subnet: 255.255.255.0
    All clients hooked through the VPN router which connects to cable modem uplink port.
    DHCP on Cable Modem
    VPN pass-through enabled
    I'm able to get out from my internal network with this setup, but unable to QuickLink into it yet. It's functioning just like an ethernet multi-router system all on the same network, basically.
    I've tried to use the Linksys default setup disk to setup the VPN in various conditions, but no go, and there's precious little help from the manuals for this case. Any ideas would be appreciated.

    HI , what you have done here is that by putting the WRV on the DMZ , you have opened all ports for the WRV.However , on the WCG itself all ports may possibly be blocked. Even though the VPN passthrough is enabled.
    Try and forward the VPN ports on the WCG as well (1723,500,50,43-47,445)

  • Help Please: How to connect to a cable modem?

    Here's the deal: I'm getting a new iBook tomorrow I'd like to get an advance sense of what I'll have to do to get it connected to the cable modem that I'm using with my current Digital Audio G4.
    Will the iBook self-configure if I have have it connected to the cable modem when it first starts up, or do I need to record the TCP/IP stuff from the G4 for use with the iBook?
    Thanks for your help.

    Hi Paul,
    If you have a firewire cable, that will work. Just start your G4 up in target disk mode. If you don't have one just connect the two with an ethernet patch cable. Unplug it from the modem and plug it into the iBook then turn on file sharing on both machines. On the iBook select Go>Connect to Server and click on Browse. Double click on the G4 and enter your user name and password (if needed).
    John

  • Hi, I have a MacBook Pro and a PC both connected to a TC who in turn is connected to a cable modem. I have no wifi accessfrom my MacBook pro (self assigned IP - no internet connection msg) while I do on PC through ethernet? can anyone help?

    I was working yesterday afternoon when the wifi suddenly went cold. Initially on the MacBookPro and on the ethernet connected PC. I reinitialized modem and TC  through the mac and then the ethernet on the PC worked again and has since. 
    I've reinitialized both the modem and TC many times, as well as checked the cables. Moreover, I've tried to renew the DHCP lease, provide the DNS servers manually, erased all networks in Network preferences and in KeyChain etc. but nothing seems to work.
    One strange thing also happened. I had two networks created, one for me and one I created for guests. The latter one just vanished, dissapeared without a trace.
    I've tried from the café down the street and the Wifi worked perfectly well though a little slow, but that could be their connection not the Airport. Therefore, my  I deduct that there is either something wrong in the TC or something went wrong in the network settings in the Mac. But that doesn't help to move forward and fix the darn thing.
    The only thing I haven't done is completely reset the TC, but after reading a couple of help threads on different forums I'm confused as to how to proceed to get it back to worrk? Has anyone had the same or similar issue and found a solution?
    Thanks

    Eh la Pastenague! Je savais que tu était léthale pour l'homme mais ce sont pluôt les machines à pommes qui devraient te craindre. Merci! Solved. 
    For future reference.
    My TC is a 3rd gen.
    I actually had to reset to standard defaults not only once but twice. The first time I simply returned to my old profile but that only led to the same message error on the network settings (i.e. IP by default, cannot connect to the internet). Therefore the second time around I kept my profile as backup and re-created a new one plus a guest one.
    The airport utility then signaled to issues remaining:
    1) Internet access was cut - this I solved by simply reseting the cable modem
    2) There were no DNS Servers - I simply copied the ones I had from the previous setup and it worked
    I did have AppleCare....
    I'm online again and I hope for good.
    Thanks a lot
    PS. a small tip - I made captures of all my settings in Network settings, Airport Utility and Network utility using Grab in case of ... if anything it is just handy to get back settings that your are missing when setting up a new configuration

  • I have a internet connection thru a cable modem but the signal is not strong to reach one of other rooms, so i purchased a airport express so how do i connect it to the exisiting modem do i have to install the cd that came with it, the modem is connected

    I have a existing internet connection thru a motorola SBG900 cable modem connected to my imac, i purchased a macbook pro but the signal is not strong, so i purchased a airport express but i dont know how to install it, do i have to install the CD on my macbook pro or the imac.  i live in a four bed room house distance between the imac and macbook pro is around 25 -30 feet.
    Thanks
    Yesh

    Hello:
    This article will give you basic guidance.
    http://docs.info.apple.com/article.html?path=Mac/10.7/en/mchlp2875.html
    Barry

  • Time Capsule connectivity issues with cable modem

    I have Comcast internet service (coming through a Linksys CM100 modem, no router) plugged directly to a 2TB dual-band TimeCapsule. In the past this has been working, and the TimeCapsule has been providing internet access to three Macs, as well as backing them up. I also have an AirPort Extreme base station (not the dual-band one but not the 2003-era UFO-shaped one either) that has been connected to the TimeCapsule over house ethernet to provide wireless through the rest of the house. Last night my connection kept dropping out. I could connect to one wifi network and it would not work, then I would connect to the other and it would work for a while before stopping. I have disconnected everything and then replugged only the cable modem and my TimeCapsule. When ethernet is plugged directly into my iMac from the modem, I get an internet connection without issue. When I plug it into the TimeCapsule, it reports an internet connectivity error. It says it gets no IP address, and no DHCP setting that I provide it with alleviates this message.
    I'd be gratful for any suggestions on how to fix this issue. I don't really want to wipe the TimeCapsule completely, as it contains our backups to last July.

    When ethernet is plugged directly into my iMac from the modem, I get an internet connection without issue. When I plug it into the TimeCapsule, it reports an internet connectivity error.
    Because cable modems associate and "remember" the device with which they have established a connection, they need a complete reset whenever you change the device that is immediately connected to them.
    Push the reset button, If present, on your modem
    Power off the modem
    Pull the battery if it is easily accessible
    Power off everything else on the network, order if not important
    Wait at least 15 minutes
    Make sure that the Ethernet cable from the modem is connected to the WAN port (circle of dots icon) on the Time Capsule
    Power up the modem and let it run 2-3 minutes by itself
    Power up the Time Capsule the same way
    Power up each of your other devices about a minute apart
    Check for proper operation the network.

  • [WRT54G] What type of cable to connect router to cable-modem?

    Hi,
    What type of cable do I have to use to connect a WRT54G router to a cable-modem, straight UTP or cross UTP?

    Normally you would use the standard (straight through) ethernet patch cable.

  • CONNECTING AE TO CABLE MODEM

    Hi.
    I have an Arris cable modem connected to my MacBook and everything works fine but when I connect my AE everything seems go go wrong.
    I have a static IP and I transfered the details to the AE via ethernet and then plugged the cable modem into the back (it is a 96.x.x.x).
    I managed to get a green light on the AE and even connect the MacBook to the AE via wi-fi but I don't seem to be able to access the internet. Network preferences shows a new IP address now (10.x.x.x) but the Airport utility shows the AE has the 96.x.x.x still.
    Should I be doing something else?
    It works fine when I unplug the AE and plug the laptop back in...
    Thanks!

    stevem98, Welcome to the discussion area!
    Most cable modems will only talk to a single device until they are reset. Powering off most cable modems causes this reset to occur. When the modem is powered back up, the modem detects the new device and will talk to it.
    The reset needs to happen every time the cable modem's Ethernet connection is switched from one device to another... like laptop to AirPort Extreme base station (AEBS).
    Some cable modems have a button on the back for the reset.
    Some cable modems have a small internal battery which must be removed for the reset to occur.
    Some cable modems must be powered off overnight so that equipment back at the ISP can be reset.
    Did you power off the cable modem when switching the connection?

  • Airport Extreme won't connect with my cable modem (Time Warner)

    OK, I'm tired of staring at a blinking amber light. I'm reaching out to anyone out there who's had this problem. I've got everything connected right, the software loaded, the connections set on my laptop (Macbok Pro). But still my Airport Extreme won't connect to the Internet. I've tried different cables, rebooting both my modem and my Airport. For the record, I've had a Mac IT guy from my advertising agency come by my house and make sure that everything's installed and hooked up right. But it still keeps saying that my IP address is invalid, even though I can connect (wired) using the modem.
    I suspect I'll just have to take it to the Genius Bar or something. But anybody got any ideas? I really want to join the 'n' generation....
    -neil

    atotheb, Welcome to the discussion area!
    Did you power off the cable modem when switching the Ethernet connection from laptop to AirPort Extreme base station (AEBS)? This is usually required.

Maybe you are looking for