Let's try: Diagnosing the router...

entropyentropy Yah-Der-Hey (Wisconsin)
edited July 2004 in Science & Tech
yep. My little escapade didn't work. I set all the comps to static, and everything went dead. No ping reply, no google ping reply, no internet, no reply from other computers, and yet, I could transfer files...so should I just hook it up to my computer? What port? Is there anything i can really do?
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Comments

  • gibbonslgibbonsl Grand Forks AFB
    edited July 2004
    run this from the command prompt

    ipconfig /release

    then this command

    ipconfig /renew

    see if that works for you
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    gibbonsl: Those DHCP commands won't do anything for a static IP setup.

    entr0py: I'm having a lot of trouble understanding what's going on and your questions aren't very clear. Your little escapade.. was there a thread about this earlier?
    edit: I think I found it, time to read...
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Okay, the easiest thing to do with your setup would be to connect all the computers (including the dell) to LAN ports and leave the WAN unconnected. To finish turning your router into just a hub/switch, disable DHCP in its configuration. ICS should have made your Dell into a DHCP server and the other computers can obtain IP address automatically, although static IP should also have no trouble as long as it's set up right.

    What you said about transferring files but not being able to ping is pretty troubling, though. Were you using Windows samba networking to transfer? Between which computers?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    I got a file off of my computer while on the dell. samba network = windows built in networking stuff?

    And what I did, was setup ICS on the dell, while my bro's computer was still set on dynamic ips. Then i changed it. I prolly should've done one at a time, but i changed my bro's and also disabled dynamic dhcp in one fell swoop then hit 'Apply', and that's when it all went downhill. Tried resetting the router and nothing works...

    //EDIT: What I don't get is that I can transfer files but not ping the other computers?! well, that may be due to it putting it on dynamic...i'll have to do some more checking. But the htm config page won't work, and the router won't respond to a ping request, either...
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    I guess I can think of one thing that would go wrong.. I use a D-Link also and its IP is 192.168.0.1, which is what ICS makes your computer. The router won't be a true hub if it still has an IP address. If you do have a spare hub, that would work better.

    What model is your router btw? Mine used to do that but now it works pretty well.
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    entr0py wrote:
    I got a file off of my computer while on the dell. samba network = windows built in networking stuff?

    Right.
    entr0py wrote:
    And what I did, was setup ICS on the dell, while my bro's computer was still set on dynamic ips. Then i changed it. I prolly should've done one at a time, but i changed my bro's and also disabled dynamic dhcp in one fell swoop then hit 'Apply', and that's when it all went downhill. Tried resetting the router and nothing works...

    Ok... so you switched the computers to static at the same time as setting up ICS? What happens if you set them back to DHCP? Also, is the DHCP server on the router still enabled?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Alright, did a bit more playing. I AM getting a dhcp address from the router. I can ping the other computers. i think it wasn't working because I wasn't aware that it went back to dynamic. I still can't get to the config page, though. Seems to be working fine as a switch now, but the 'routing' function is bad. Come to think of it...I remember reading some reviews with people saying the WAN port had fried for no apparent reason...
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Your problem is that you need a crossover cable to connect the WAN port to the NIC on your Dell. So try connecting the Dell to a LAN port on the router. Although if you can't get to the router page to disable its DHCP server things could get a little nasty.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    I gave up on that idea for the moment. I'm just trying to get my router working, then I'll go and break it again :D And most new routers work just fine with either crossover or straight-thru so that shouldn't matter much, unless the WAN doesn't have that capability.
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    I would be inclined to think the WAN is wired the same way as a NIC, meaning it would take a crossover to connect them together. More likely than auto-sensing IMO.

    Anyway, so now you've got 3 comps on the LAN and the cable modem on WAN again? Well, then you might not be posting... 2 comps with the router separate from Dell and modem?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    I'm run straight to the modem right now. Router is fried. Like i said, i'm abandoning the ICS until i can fix this, if you think it's a lost cause, then I'll try to get ICS working...But if I can't disable DHCP is it even possible?
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    It may be possible, then again there's enough reason for that to not work.

    So the first goal is to get to the router's config page from one of the computers connected to it, right? At this point I'd keep it clean and do this:
    Power down the router
    Select a computer (or do this to both).
    - Enable DHCP (Obtain IP address automatically, and Obtain DNS settings automatically)
    - Shut down
    (If you chose not to do this on one computer, disconnect it from the router)
    Turn on the router and then reset it to default settings (unless there is a good reason not do do this) - there should be a small hole or button to use a paperclip on
    Power up the computer(s)
    Check whether it has an IP address (command prompt -> ipconfig)
    If it does, try navigating to the router's config page. If you reset it the user/password will be the factory default

    Oh, and if you want to do this with the cable modem connected to the router (which would be fine) make sure you reboot the cable modem because it won't work if you don't.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Instructions followed to the letter. I get an ip, but the router just won't get me online. In network connections the usual 2 connections don't show up (router and modem) so I'm thinking it's dead...
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    entr0py wrote:
    Instructions followed to the letter. I get an ip, but the router just won't get me online. In network connections the usual 2 connections don't show up (router and modem) so I'm thinking it's dead...

    I don't follow exactly what connections you're talking about. From what?

    So you couldn't use the Internet connecting computer->router->modem?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Couldn't use it. And what I mean is, generally when you go modem - router - computer, you can see two connections in the Network Places under View Network Connections. Like, one is your NIC and the other is the router. Well, the router doesn't even show up when I'm connected to it.
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    I'm not terribly familiar with XP... hmm. 2000 only shows one but I'll take your word for it.

    How about some more command prompt. First do ipconfig and see what the Default gateway is (please report this). Then try pinging that IP.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    While I'm behind the router or just using the modem's DHCP?
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Behind the router. We're trying to diagnose and/or fix it right?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Here's two pics. First one is from behind the modem. Notice there's a default gateway. Second is the router. I got an ip, yet no default gateway, meaning no internet connection. I have a feeling the wan just quit...I just can't think of anything else. 192.168.0.1 is the router's default config page. That ip I pinged for the modem was the modem.
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Looks good behind the modem. However, your router has not assigned you an IP address in the second screenshot. A 169.254.x.x address means that it tried to find an IP via DHCP and failed (btw, thus you don't need to black out any of it, but good call on the other one). Given the fact that DHCP should be enabled in the factory settings, this result does say something is definitely wrong with the router. Two questions.

    1) Is there anything visibly wrong with the router? Is there a light on for WAN, LAN, and Power? Do they flash to show activity? (okay that was a few questions)

    2) Are you connecting the cable modem to the router when you try it, and rebooting the cable modem?

    From what I've seen I'd say something is probably wrong with the WAN port but it could be the DHCP server or a LAN problem- there is as small chance a different LAN port would yield a different result. We may test to see if DHCP is the problem by setting a static IP.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Heh, I dunno enough about networking to warrant risking anything :p

    Nothing visibly wrong. As I said, All I did was disable DHCP and set the two comps to static in the same move. Lights all work. Shows activity. And everytime I put in the modem / pc, yes, I reset the modem as otherwise it won't work. File sharing seems to be working. I don't suppose it's possible to reflash the bios if I can't access the config page?
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    That's correct, and I think you may be able to access the config page by using a static IP.

    But I'm curious how you can transfer files... you can do start->run and type "\\computername" and connect to another computer connected to the router? What happens then when you go to the command prompt and type "ping computername"?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Oh, thought I corrected myself earlier. The reason I couldn't ping my computer from my bro's (mine has always been static - hard to run and site and ftp server off a dynamic ip) was because I was unaware that it had gone back to dynamic. After some futtzing (read: actually checking my ip), it worked just fine.
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Ok, well, I guess we should put a computer on static and see if it'll talk to the router.

    Pick a number to set your IP address to, 192.168.0.x (should be between say 110 and 200)
    Subnet mask should be the default which is 255.255.255.0
    Default gateway (this is the crucial one): 192.168.0.1

    I think you're then required to set DNS server, just put in the first one as 192.168.0.1.

    After doing all that, and checking with ipconfig to make sure it's set, can you ping the router and/or access its web interface?
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    YOU ARE A GOD!!!:D:D:D:D Thank you soooo much. I'll be back in a few hours (got stuff to do) and let you know how it all worked. I CAN ping the router, and i CAN access it's page!! i'm behind it right now!
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    So, now, how can I set it up to run throught the Dell? Should I do static IPs in the router, or do it in the computers?
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    Glad to hear something works :)

    Okay, I don't know if it will work. The issue of duplicate IP addresses is quite a big one and affects both potential setups - computer on LAN and computer on WAN. So the best we can do is try it. I can also look it up if I have a chance. If this doesn't work perhaps you should just buy a switch or hub since that is much much more fail-safe with ICS.

    I guess we'll try LAN first - all 3 computers connected to a LAN port of the router (hopefully DHCP is disabled on the router since it hasn't seemed to be effective.. check that if you can). Since the Dell should already have an IP address of 192.168.0.1, the static IP arrangements can stand. If this doesn't work pretty fast, try setting the other two computers to Obtain IP address automatically. I don't recall whether ICS includes a DNS server, BTW, so you may need to manually copy its DNS config to the other computers to be safe.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Neither worked. Btw, I was able to change my router's ip, so that wasn't a problem. I think you may be right, that I need a crossover for this. Oh well, was worth a try, thanks :)
  • EMTEMT Seattle, WA Icrontian
    edited July 2004
    You mean you can make it 192.168.0.x or 192.168.x.1? If the latter, there is hope for the success of crossover to WAN.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited July 2004
    Um...I can rewrite the entire IP, and the Subnet Mask...

    //EDIT: Just so you know, I don't have a crossover cable onhand :-/
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