random loss of internet

rikamus

rikamus

rikamus

Associate
Joined
25 Apr 2007
Posts
44
i'm back home from uni atm and so i'm using my parents i'net. there is a cable running from the router (netgear DG834G) in their study up through the attic and into my old bedroom. i plugged myself in when i got home a couple of weeks ago and everything worked fine.

until yesterday morning, when for no apparent reason my internet stopped working (i.e. limited or no connectivity). their computer (also cabled to the router) works fine, as does another computer upstairs when it's connected using the same cable i had been. i'll bullet point the things i've tried:

- reboot the router (both by unplugging it and through the console)
- give myself a static ip (interestingly when i do this the limited or no connectivity sign goes away but i don't still can't connect and in properties i don't receive any packets)
- checked and rechecked my settings
- tried the cable in both ethernet ports on my board.

i literally have no idea why it's stopped working. it was working the night before it stopped. bizarre.

any help would be awesome.

edit: the only thing that i can think of that might be significant is that in the routers console it doesn't recognise my computer as an attached device, or as one waiting to be attached.
 
Last edited:
"Limited or no connectivity" just means the machine didn't get an answer from a DHCP server (i.e. the router), so it should go away when you manually assign an IP address, subnet mask et al. The router's "attached devices" is almost certainly just a list of DHCP leases the router's given out, so it's inconsequential as well.

Any firewalls on the machine?
Any error messages?
Try something like an Ubuntu LiveCD, and see if that gets an IP from the router?
 
edit: i've got outpost running, but disabling that doesn't make any difference. no error messages that i can think of. about to try linux. any other ideas?
 
edit2: didn't have a spare cd kicking around so booted into damn small linux through qemu. couldn't access the net. not sure if that means anything?
 
Have you tried changing the port in which the cable is plugged into on the router? It could be that the cable has gone faulty or maybe even the port on the router?

It sounds very much like the cable to me though. Is it a home made cable or a proper one with moulded plugs?
 
haha yeah that was one of the first things i tried. also used the same cable to connect another comp to the router and that one could access the net.
 
I know you've said that there is no internet connection but, after assigning yourself a static IP have you tried to ping the world (or any of its web addresses)? if so any response?

anything in the host file? have you tried to access several websites? are they all timing out?

does the router have Mac address filtering turned on? or any other security messages for that matter?
 
tried to ping stuff but it just says destination host unreachable
not sure what a host file is... :)
all websites that i've tried time out.
can't see any mac address filtering on the router.

thanks for the help so far!
 
Last edited:
re-install network drivers for your motherboard?
i had similar internet troubles once and reinstalling my network drivers solved it
 
super: tried pinging the router. when no static ip is set it returns as host unreachable. when its set to static ip it times out.

elite: reinstalled drivers but to no avail :(

tolien: it could be yeah, although not sure why it would die over night like that. also, not sure how much i trust dsl, not too familiar with it. will be interesting to see what happens when i'm back up at uni (different router and have a ubuntu livecd)

in the mean time any more things i can try?

thanks
 
in case your intrested the host file is sort of a local dns file for your machine, you can add ip addresses and names and then you'd be able to ping that name as the host file will reslove it for you.

If you where just unable to connect to just a few sites I'd suggest checking it as it might have few entires blocking those websites ip addresses.

host file location - c:\windows\system32\drivers\etc\host - open in notepad to make changes.
 
Last edited:
Open up a Command prompt and type :

ipconfig/all

and post here, please. ( You can highlight with a mouse and copy and paste from the cmd window or do ipconfig/all > blah.txt to send the output to a file )

Post your router's ip address / netmask as well.
 
Last edited:
by router ip address do you just mean 192.168.0.1?
netmask?

i've got it set to static ip atm, the ipconfig is this:

Code: 
Windows IP Configuration

        Host Name . . . . . . . . . . . . : rikamus
        Primary Dns Suffix  . . . . . . . : 
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 6:

        Connection-specific DNS Suffix  . : 
        Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
        Physical Address. . . . . . . . . : 00-1A-92-D2-7D-A7
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 192.168.0.222
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.0.1
        DNS Servers . . . . . . . . . . . : 62.24.199.13
                                            62.24.199.23

Ethernet adapter Local Area Connection 8:

        Media State . . . . . . . . . . . : Media disconnected
        Description . . . . . . . . . . . : NVIDIA nForce Networking Controller #2
        Physical Address. . . . . . . . . : 00-1A-92-D2-88-0E

not sure if you want to see the without static ip address one?

blastman - in the hosts file it has one entry "localhost 127.0.0.1".
 
You must log in or register to reply here.
Back
Top Bottom