Cannot renew IP address!!

[haymyth]

Hi,

I have a Windows XP PC connected to a D-link DI 704 router via a Netgear Ethernet card. The router is attached to the Cable Modem. I sometimes connect another laptop to the router.

My problem is (and this only happens with the PC, not the laptop) every time I reboot the computer I can access the internet for about 10 mins to a few hours. Then, the web pages just stop loading. I try to release/renew the ip address, the release part works fine..the IP address does not get renewed...the process just hangs. I try to ping the router address (192.168.0.1) and it gives "request timed out". I have tried reinstalling TCP/IP, powering on the cable....nothing seems to work!!

Please help!!

Thanks.

[FlyingMonkey]

It doesn't sound like you're IP is the problem.
Therefore, releasing and renewing will not help. Your router should assign you an IP Address via DHCP - a local ip address (either 10.x.x.x or 192.x.x.x) that can't be seen outside of your router.

Do you have to reboot your router in order to regain internet access? Or just your PC? If you have to reboot your router, it may be bad - and in that case, directly hook up your computer to the cable modem and try that.

Several software titles I used in the past liked to just cut off my connection at different times. I cared little about finding these programs and used a backup program to revert back a month or so. (in other words, reinstall) But that's really a last resort.

Is your cable spotty? Can you get online through your laptop while your PC can't?

[Syclone_A]

The reason you can't renew your ip is the same that you can't view your web pages, you are losing communication with your router. If this problem is with just one pc disable the nic and enable it and grab a new ip that way. Check the status menu under your network connections to see if it was assigned a new ip from the dhcp. that works sometimes for me, also if it happens to more than one pc i would reset the router, i have to do that occasionally. I have the same problem on my home network from time to time and its always the same pc so i wouldn't worry to much about that coincidence, at least at this point. If you ever have all pc's where they can't access the internet try a hard reset of the modem. Those three things solve all of my problems I have ever faced with the type of problem you are having and note the different symptoms that each solution is related to.

[haymyth]

Thanks for your replies!!

1. I just need to reboot the PC, not the router.
2. I can connect to the net from the laptop even when not able to connect via the PC.
3. The PC gets a 192.x.x.x IP address.

4. Disabling/Enabling of the NIC results in the same IP address..not a new one

Is this a software configuration problem or a hardware related? I had the same problem on Windows 98 and so I upgraded to XP..

[Kip Patterson]

Take a look at how you have your NIC configured. There is no standard for autonegotiation, and some combinations of cards, hubs, switches, and routers don't work reliably. Set it to 10mb half duplex or 100mb full duplex and see what happens.

Kip

[catapult01]

i came here looking for some answers, and i can at least take a little comfort in knowing i'm not the only one with this type of problem.

here's mine...

THE FACTS
adelphia cable service into a netgear rt314 router/hub, two computers (win2k, sp2) in the router - one laptop and one desktop, using DHCP from the router.

THE PROBLEM
desktop cannont get online time to time. sometimes longer than others.

OBSERVATIONS
used to work fine. laptop never has trouble. the modem is always sync'ed up. no problem browsing network between the two computers. i can ping the laptop, cannot ping the router itself. can't connect to the web interface for the router.

INITIAL TROUBLESHOOTING
changed ports, swapped cables, rebooted everything (turned off everything for about a minute, turned on modem then router then computer (no luck). updated router firmware. browsed these forums.

any suggestions, and i would be very grateful.

bill

[haymyth]

Thanks Syclone_A+!!

Every time I lose connection, I disable/enable the NIC or just the network connection (thanks to XP) and the connection gets resumed... dont have to restart my PC any longer.

But I still lose connnection about once an hour or so... is that good or bad?

[Chico_Marx]

We've been going through this on another thread. Check out "NIC loses IP Address" in this forum for more ideas. My connection would fail within an hour or stay up for two days and then go down requiring a lot of modem resets and computer restarts.

[hoov]

Another thing to try would be to statically assign an ip address to your local pc instead of using dhcp. Set up your pc to use 192.168.0.2 with the appropriate subnet and the router ip as the gateway.

If the does work for you, then eventually you would want to adjust the dhcp scope that your router uses so that it does not try to assign your static ip to another pc using dhcp, like your laptop.

[hoov]

Also sounds like both of you have flaky nic cards in your desktops.

[Syclone_A]

hey, sorry i haven't been looking at this thread lately, but does it still give you problems? if so if you are using pppoe i know with bellsouth if you don't use a router they make you install that nts enternet adapter or whatever its called. I would remove that since you now have a router to handle the dhcp assignments. Again let me know if you are still having problems as i used to run into this same thing.