dhcp assigning wrong IP address?

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CKCallaway

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Sep 6, 2014
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My home computer stopped being able to connect to the internet about a week ago. I get the worthless "limmited or no connectivity" message. I have done a lot of research and tried a few different things but am getting nowhere. I have ATT uverse with the wireliess router that they provide. I can connect to the internet with my work computer and also my iphone. Resetting the router doesnt help - i have done it like 5 times. It looks to me like the computer that cant connect is using a bad IP address. I tried assigning it manually but that didnt work either(but i could have set it up wrong). Below are the details i get from IP config for both computers(if a field is blank thats how it is - i didnt forget it). Any help would be appreciated. Thanks in advance.

Computer that cant connect:
Connection-specific DNS suffix:
Autoconfiguration IPv4 Address: 169.254.230.166
Subnet Mask: 255.255.0.0
Default Gateway:

Computer that can connect:
Connection-specific DNS suffix: attlocal.net
Autoconfiguration IPv4 Address: 192.168.1.66
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.254







 
Solution
kanewolf
The 169 address is the windows default. That means that the computer didn't negotiate a DHCP lease. It could be that the wireless is weak enough that the DHCP times out or gets garbled. You could create a static IP address similar to the PC that successfully connects. You want everything EXCEPT the last number of "Autoconfiguration IPv4 Address" to be the same as shown. You want the LAST number to be something like 200 since it is UNLIKELY that is used.
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The 169 address is the windows default. That means that the computer didn't negotiate a DHCP lease. It could be that the wireless is weak enough that the DHCP times out or gets garbled. You could create a static IP address similar to the PC that successfully connects. You want everything EXCEPT the last number of "Autoconfiguration IPv4 Address" to be the same as shown. You want the LAST number to be something like 200 since it is UNLIKELY that is used.
 
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Solution


Yes, i am in the same room as the router.The network adapter is enabled and the status says "divice is working properly."
So i am not very familiar with pinging but i think i know how to do it. I went to a cmd promt and typed ping and then 127.0.0.1 and then hit enter and it failed. All four tries failed - four packets sent and zero received. Hope that helps
 
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Yes, i uninstalled mcafee and turned the windows firewall off.
 
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thanks for the help i really appreciate it. So it is a cheap computer - about 350.00 3 years ago. My last resort was a system recovery - should i bother or not? Also would you bother spending the $ on a new nic card or just get a new computer? I know this is just opinion but i appreciate to know your thoughts. Thanks
 
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You can get a new wireless USB nic for $20. You likely can replace the internal card if it is a laptop for not a lot more...it mostly depends how hard it is to take the laptop apart.
You may be able to just reload the device drivers for the nic card. If the machine does not detect the card at all or it gives errors loading the drivers you likely have a defective nic.
Since I tend to be cheap and figure my time is free I would try to recover it some way or another.
 
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