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Router keeps rebooting

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  • 24-07-2009 11:47pm
    #1
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭


    It's strange. Every now and again my router just reboots for no reason. It could be 2 or 3 times in 10 mins or not at all for 6 hours.

    * I've tried different routers - so it can't be my router at fault.
    * I've tried different computers - so it can't be my computer at fault.
    * I've tried different channels on the different routers
    * I've plugged the modem direct into the main socket in the house, so it can't be the socket at fault

    What am I missing? Has anyone experienced this before? I'm running DSL.


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    #2
    Epeen
    Closed Accounts Posts: 93 ✭✭Epeen


    Rebooting? You mean your router(s) dropping sync or your nets are dropping off the computers?

    Its obviously an issue with your cables or your isp, your routers and computers are probably fine


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    #3
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    The router appears to reboot. The lights all flash off an on again and the wifi signal drops.


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    #4
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Your name is probably the reason:)

    Line stats please.


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    #5
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    This?

    6034073

    Can't find anywhere else on my router to get them. This website (http://www.kitz.co.uk/adsl/frogstats.php#33) suggests the screenshot above is what you need.

    Thanks


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    #6
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Its the bit under that that we need: attenuation, noise margin, etc.


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    #7
    vibe666
    Registered Users Posts: 13,016 ✭✭✭✭vibe666


    Random wrote: »
    This?

    6034073

    Can't find anywhere else on my router to get them. This website (http://www.kitz.co.uk/adsl/frogstats.php#33) suggests the screenshot above is what you need.

    Thanks
    have you changed the PSU or tried a different power socket? it could be power related if it is actually going off?

    silly question, but in that screengrab, isn't your system uptime showing over 60 hours?


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    #8
    connie00
    Registered Users Posts: 31 ✭connie00


    I had a rebooting problem but it was with a Zyxel changing the wifi channel sorted it. There was a conflict with other wifi nextworks in my area causing a crash so worth trying a different channels.

    Also have you the latest firmware update for your router, usually a good step when your encountering any problems.


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    #9
    Dardania
    Registered Users Posts: 3,612 ✭✭✭Dardania


    I second updating the firmware as being a good step.
    Next up, psu problems can affect routers...

    do you download any traffic that causes a lot of open connection eg torrents? They can overload some devices...


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    #10
    watty
    Registered Users Posts: 32,417 ✭✭✭✭watty


    Certain kinds of Internet attacks can cause router reboots. Many different Models/makes use varients of same software.


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    #11
    andy125
    Registered Users Posts: 1,589 ✭✭✭andy125


    I have the exact same problem as you and i have tried everything its not isp as it has happened to me with BT also,

    So only thing left to do is rewire the house :(

    My line stats not that i know what they mean-


    noise margin upstream: 18 db
    output power downstream: 18 db
    attenuation upstream: 28 db
    tone 0- 31: 00 00 00 02 34 56 66 66 77 66 66 65 55 54 44 00
    tone 32- 63: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    noise margin downstream: 18 db
    output power upstream: 0 db
    attenuation downstream: 48 db
    tone 0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 32- 63: 00 00 00 00 00 00 00 00 00 00 22 22 00 00 23 45
    tone 64- 95: 07 78 88 99 99 99 98 89 98 88 88 88 88 88 77 88
    tone 96-127: 88 87 88 87 78 78 77 77 77 76 37 77 77 77 77 67
    tone 128-159: 77 76 44 67 77 77 67 67 77 76 40 55 55 55 54 44
    tone 160-191: 32 33 00 00 22 33 43 33 44 43 32 02 33 44 44 44
    tone 192-223: 44 44 32 00 02 22 00 22 22 20 22 00 00 23 22 23
    tone 224-255: 33 33 22 20 02 23 33 02 23 22 00 00 00 00 00 00
    tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


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    #12
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    Its the bit under that that we need: attenuation, noise margin, etc.
    I can't find them on this router?
    have you changed the PSU or tried a different power socket? it could be power related if it is actually going off?
    I have tried different power sockets it (had it upstairs, now downstairs) and I think the different PSU is covered under different routers?
    silly question, but in that screengrab, isn't your system uptime showing over 60 hours?
    Perhaps not a silly question. I can only report what I'm seeing and those stats don't seem right. Need to look more into that.
    I had a rebooting problem but it was with a Zyxel changing the wifi channel sorted it. There was a conflict with other wifi nextworks in my area causing a crash so worth trying a different channels.
    I have tried different ones but not all 11 or 12 .. I guess I can keep trying?
    Also have you the latest firmware update for your router, usually a good step when your encountering any problems.
    I think I have the latest but I'll check it out. Have the same issue with different routers though... .
    do you download any traffic that causes a lot of open connection eg torrents? They can overload some devices...
    Recently no. Thunderbird with IMAP all the time, MSN, Firefox. That's about it lately.
    Certain kinds of Internet attacks can cause router reboots. Many different Models/makes use varients of same software.
    Where do I check for this? What am I looking for?


    Thanks


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    #13
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Your noise margin is in the figures above and seems to be 18 which should be fine. Droupouts are usually caused by Snr heading below 10.

    Have you ever had your internal wiring checked?


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    #14
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    Have you ever had your internal wiring checked?
    Not that I'm aware of. How does this work? What does it involve?


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    #15
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Random wrote: »
    Not that I'm aware of. How does this work? What does it involve?

    Is it an old house? Many extensions? etc etc


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    #16
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    Old? How old is old? I reckon maybe 30 years give or take.

    By extensions you're meaning phone sockets in the house? There's a couple scattered around... none of them in use though. In the hall downstairs I have the main point where the cable comes in now and I have:

    Main socket
    --- phone line running to DSL router
    --- multiple socket adapter thing
    5 cables running out of this .. 1 for the phone and 4 for Sky boxes.


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    #17
    ttm
    Closed Accounts Posts: 2,045 ✭✭✭ttm


    Couple of things I'd check first, do you have a fixed IP? If you reboot the router do you get the same internet facing IP - check at www.whatismyip.com just wondering if you do get the same IP if someone is targeting something at your end - but thats not very likely.

    Then I'd check for sources of RF interference. Once had a issue that took 18months to fix, PC kept rebooting and we replaced the PC 3 times, all the network cabling , network card and patch cables multiple times and couldn't find the problem, turned out to be the pager system in the office, every time it was used near this desk the PC rebooted. So if you had a radio ham next door or anything that could cause interference that would be worth looking into. Weird stuff like kids remote control toys the list is endless but needs considering just in case.


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    #18
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Random wrote: »
    Old? How old is old? I reckon maybe 30 years give or take.

    By extensions you're meaning phone sockets in the house? There's a couple scattered around... none of them in use though. In the hall downstairs I have the main point where the cable comes in now and I have:

    Main socket
    --- phone line running to DSL router
    --- multiple socket adapter thing
    5 cables running out of this .. 1 for the phone and 4 for Sky boxes.

    Do you mean that you have 4 sky boxes attached to that one extension point?


    If so you have you ever tried plugging everything out bar the router? How many dsl filters are you using?


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    #19
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    I should clarify something else actually ... only recently in the last week or so changed to using wifi only. Before that I had it connected via cable. This is how I came to the conclusion that the router was rebooting too along with the lights appearing to go off and on.

    I have one DSL filter.


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    #20
    Dardania
    Registered Users Posts: 3,612 ✭✭✭Dardania


    Random wrote: »
    I should clarify something else actually ... only recently in the last week or so changed to using wifi only. Before that I had it connected via cable. This is how I came to the conclusion that the router was rebooting too along with the lights appearing to go off and on.

    I have one DSL filter.

    could it be a problem with your pc's wifi card eg have you updated the driver for it?

    I used have terrible problems with an intel 2200bg card...disconnecting every 10 mins...

    what way do you have wifi configured on the router also - channel etc?


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    #21
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    * How could it be a wifi issue if it happens when connected by cable too?
    * I have WPA active on the router. I am broadcasting SSID. I have tried multiple different channels.


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    #22
    Epeen
    Closed Accounts Posts: 93 ✭✭Epeen


    The lights all flash off an on again and the wifi signal drops.

    All     of lights or one or two lights? If they all flash on and off id say its a power issue or an issue with the power youre using for the router(s). How many different routers? And you're using different power cables for them?

    The only other thing would you be losing sync with the exchange? (if only a few lights go)

    Can you try the router(s) in someone elses house? Else as dub said the wiring but thats probably going to cost if its not their problem


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    #23
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    * In relation to trying the router in someone elses house .. I've tried 2 routers?
    * As for the lights ... I'm pretty sure it's all of them but it's downstairs now. Will keep an eye for next time.
    * Power cables all different.
    * What's gonna cause the wifi and wired signal to drop though ??

    * Also note the uptime in the router appears to still be intact after I lose connecton .as someone pointed out earlier. .


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    #24
    Epeen
    Closed Accounts Posts: 93 ✭✭Epeen


    * In relation to trying the router in someone elses house .. I've tried 2 routers?

    To check if its your house and your wires. To call them out to check your wires costs money if it isnt their problem. Its cheap and easy to test your equipment in someone elses house to rule them out.

    The wifi and wired signals dropping is either power is lost to the modem/router or the signals dropped/youre losing sync.

    I dont know what modem you have or how many lights it has, but if theres lights to signal power, sync and LAN connections then if all the lights go off its more than likely power, if only one or two go off, its a sync issue or your connections being dropped.

    The uptime of the router would be dependant on how long the routers been turned on (for instance mine would be several months if i didnt have to keep turning it on and off all the time to try solve my own problems :<)

    You have a strange enough problem so there doesnt seem to be a straight answer for it; what ISP are you with and what routers are you using? Where abouts do you live and is it rural or in a town?


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    #25
    Dardania
    Registered Users Posts: 3,612 ✭✭✭Dardania


    Random wrote: »
    I should clarify something else actually ... only recently in the last week or so changed to using wifi only. Before that I had it connected via cable. This is how I came to the conclusion that the router was rebooting too along with the lights appearing to go off and on.

    I have one DSL filter.
    Random wrote: »
    * How could it be a wifi issue if it happens when connected by cable too?
    * I have WPA active on the router. I am broadcasting SSID. I have tried multiple different channels.

    You're messages seem a little conflicting here - first you only notice that the router is rebooting when when on wifi, secondly you were having these issues all along...


    My best guest here is that your router & its PSU are both configured and operating fine. What's most likely happening is that the internal wiring in you house, eg all the various extensions scattered, and the feeds to the esky boxes are introducing a short circuit somewhere into your line, causing the router to lose DSL sync.

    As dub45 was getting at - disconnect all extensions / feeds etc completely from the line - unwire them, and your problem wi / filters etc from the incoming line - then all your probs will probably go away. Then you could start re-introducing them one by one to figure out which point causes your issue.

    As a side-note eircom recommends that the comined REN on a phone line shouldnt exceed 4 - usually phone devices have a REN rating of 1...


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    #26
    Random
    Closed Accounts Posts: 19,080 ✭✭✭✭Random


    I don't know .. at this stage things seem random and inconsistant.

    I've now opted to have the router downstairs at the main point and a cable running up the stairs to my PC. This seems to be working at the moment.

    The wireless remains unreliable and seems to disconnect frequently when I use it on my phone.

    I think I'm gonna go down the wireless interferece route for now .. and see where I get in terms of investigating.


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    #27
    OutlawPete
    Closed Accounts Posts: 17,689 ✭✭✭✭OutlawPete


    Random wrote: »
    I don't know .. at this stage things seem random and inconsistant.

    I've now opted to have the router downstairs at the main point and a cable running up the stairs to my PC. This seems to be working at the moment.

    The wireless remains unreliable and seems to disconnect frequently when I use it on my phone.

    I think I'm gonna go down the wireless interferece route for now .. and see where I get in terms of investigating.

    I had this issue also and in the end bought a set of Devolo Dlan Plugs ..

    This get's rid of lots of wiring and you can keep all cables down to just two very short Ethernet cables.

    Ethernet cable runs from router to Dlan plug in your choosen electrical socket. Then you put the other Dlan plug in any other socket in the house and have an Ethernet cable going from this to you PC ..

    I'm getting 18mb download speed and 0.8mb upload with my my setup. They are plug & play and don't require drivers or any software al all.

    I don't like wifi in the house for health reasons and wiring up the house wasn't an option. You can get these Dlan Kits for cheap enough and you can run more than one PC fom them at the same time.

    I bought mine in PC World for Eur69 but think you can get them cheap enough on Ebay ..

    Nic

    devolo-homeplug-av-adapter-252x300.jpg


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