Motorola Cable Modem fault

Discussion in 'PC hardware help' started by Shay2008, May 19, 2008.

  1. Shay2008

    Shay2008 Member

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    Hi there,

    I'm not able to get on to te net today with my Motorola Surf Board Cable Modem.

    I have disconnected the modem from my wireless router and connected it directly into the LAN port on the Laptop. Still no connection made.

    The lights on the front are as follows:-

    Power ON Green
    Receive ON Green
    Send Flashing Green
    Online No Light
    PC Activity Fast Flash Orange

    Hopefully someone can help me out? Maybe just a simple IP config issue. I was on to NTL but they were very littel help but they were able to tell me that there was an issue my end (thanks).
    I am splitting the cable from the wall to the, ehem, cable box and to the Motorola. As far as I know all connections are sound enough.

    Thanks.
     
  2. sammorris

    sammorris Senior member

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    Is this how you've always had the modem connected?
     
  3. Shay2008

    Shay2008 Member

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    Until about two months ago I upgraded the wireless router attached to one that I could plug a phone into. Both were very similar netgear.

    The only other slight change is that I've been leaving it on all the time now that I've sorted out wireless security and with a phone.

    I recently tried to improve the cable signal to the TV by swapping the splitter arrangement but everything is back the way it was originally now.

    Any ideas?
     
  4. sammorris

    sammorris Senior member

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    The fact that online is off suggests there's a problem with the cable, but the fact that the PC activity light is orange and flashing without net access suggests there's a different issue. Is it connected via USB or LAN, and do you have the option to use a different method?
     
  5. Shay2008

    Shay2008 Member

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    It is connected via a LAN tot he wireless. I could try connecting at a different cable point.

    I work now. Only way that I have the net.

    Sounds like the cable could be an issue, right?
     
  6. sammorris

    sammorris Senior member

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    Are you connecting directly to the modem wirelessly or to a router the modem's attached to? It could be the router causing the issue.
     
  7. Shay2008

    Shay2008 Member

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    I'm connecting wirelessly to Modem through a wireless router.

    Wall -> Motorola Surfboard -> Netgear wireless ...>(Wireless to PC)
     
  8. sammorris

    sammorris Senior member

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    Have you checked that the wireless for the router (or even the router itself) is working properly?
     
  9. Shay2008

    Shay2008 Member

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    I have disconnected the modem from my wireless router and connected it directly into the LAN port on the Laptop. Still no connection made.
     
  10. sammorris

    sammorris Senior member

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    When you do it that way, does an IP address get assigned correctly?
     
  11. Shay2008

    Shay2008 Member

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    That I'm not sure at the moment.
    I presume I could verify that with IPCONFIG and IPCONFIG/RENEW through CMD application?

    I presume if I'm seeing 192.XXX.XXX.XXX that I'm only on the Router and 167.XXX.XXX.XXX I'm only getting a defualt. So long since I've looked at them though.
     
  12. sammorris

    sammorris Senior member

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    Go to your network connections in control panel - it'll say limited or no connectivity if it hasnt got an IP - to be sure go properties on it and select 'details'.
     
  13. Shay2008

    Shay2008 Member

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    I'm in work till later on so I'll get back to you with the findings. Would running Ipconfig/renew help here anyway? Would I need to set up my LAN TCP/IP settings to automatically detect?
     
  14. sammorris

    sammorris Senior member

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    Running Ipconfig /renew certainly wouldn't hurt.
     
  15. Shay2008

    Shay2008 Member

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    Well sorted my problem this morning.

    I connected the coax directly to the modem and voils, the modem had a normal set of operating lights and everything worked again.

    I put eveything back the way it was through the splitter and all still worked.

    Maybe you could help me with this one the though. The main line into the house is in the attic. I split this to the bedroom and downstairs to a wall socket fitted by NTL (The huge clunky one withthe F connectors). Anyway from here it goes to a splitter or actually a 110dB EMI Isolation Tap. Then to the modem and the T.V Digital box.

    Do you think this setup is ideal. My signal strength on the T.V is only at 73-83%. This is effecting digital recording sometimes and sometimes the picture goes. Also, the problem I had with the modem may have been due to signal. Could I do away with the Isolation tap and just put in a bog standard splitter?

    Also, for some reason the Analogue channels are gone from the T.V. Wierd.

    Anyway, any thoughts would be cool.
     
  16. ddp

    ddp Moderator Staff Member

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    i am probably using the same modem if yours has the standby button on top. with ours, 1 line comes to the house into a box provided by rogers cable. there is is split into 2 lines which both come into the house. 1 line is only for the internet & the other line goes into a powered splitter that i installed for our 5 tv's.
     
  17. Shay2008

    Shay2008 Member

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    Exactly DDP.

    Only thing is I'm splitting twice before it gets to the modem. I wander do those isolation tap's interfere with signal strenght significantly?
     
  18. ddp

    ddp Moderator Staff Member

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    the cable tech told me not to use my powered splitter for the internet because of noise issues. try having 1 line dedicated just for the net with no spitters except for the 1 in the attic.
     
  19. sammorris

    sammorris Senior member

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    Phone line splitters and extenders are usually considered a bad idea for DSL, so the same would probably apply for cable.
     
  20. ddp

    ddp Moderator Staff Member

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    shay, keep it to the 1 splitter in the attic so 1 line is dedicated to the net & the other for the tv's. use a powered splitter for the tv line so there is no signal downgrade.
     

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