Member Avatar for rsiecxhy85

OK ill try to explain...we have 3 computers in the house, we have them hooked up to a router...ok two out of the 3 comps are fine, but mine cant access the internet, it either cant find an ip address or something but when i manually configure the internet settings based off of my other computers it doesnt work and then when I auto detect settings, the dhcp or dchp server is a wierd address and the lease is expired, so I need to know what this wierd server is, it supposed to be , but the one in my room is like !! SO PLEASE, is there a way I can changed this dhcp!!

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  • Latest Post Latest Post by jbennet

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— is on the right track: the problem is not just a mis-set checkbox, it’s that your machine is getting a lease from a device on the wrong side of the router. Seeing a DHCP server in the 68.x.x.x range usually means the PC is talking directly to the modem/ISP (or to some other DHCP server) instead of your router (which should be handing out 192.168.x.x addresses).

Run these quick diagnostics (from an elevated Command Prompt) to see what your PC really sees:

ipconfig /all
arp -a
ipconfig /release
ipconfig /renew
netsh int ip reset
netsh winsock reset

Interpretation tips: ipconfig /all shows the DHCP Server and Default Gateway your PC is using. If that DHCP Server is a public 68.x.x.x address, the PC is not getting an address from your router. arp -a will show the MAC for that IP so you can compare it with the MAC printed on your router or cable modem.

Practical checks to do next: physically trace the Ethernet cable (make sure the PC is in a router LAN port, not the modem port), swap the suspect cable with one that works on another PC, and reboot devices in order (modem first, wait until synced, then router, then the PC). Log into the router’s admin page and check the DHCP client list — if your PC does not appear there, the router did not serve it.

Common causes: PC plugged into modem, router accidentally in bridge mode, another device running DHCP/Internet Connection Sharing, or a bad NIC/cable. Resetting the TCP/IP stack and winsock (above) and power-cycling modem+router often fixes it. If the router’s DHCP table never shows the machine, focus on cabling and device roles rather than Windows settings.

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Member Avatar for jbennet

okay slow down i want some more information

so your saying your router is the DHCP Server?

If so you should be able to go into network connections and run the Network setup wizard again. if it asks you how you conect choose the option that says things about "Residential gateway or through another PC"

Member Avatar for rsiecxhy85

yes I believe that my router is the DHCP server because its the same all around, and how do I get to the network setup wizard, exactly tell me because i am sooo blonde when it comes to computers...lol thanks boys!!

Member Avatar for jbennet

here is what you want to do:

control panel -> network connections

right click on your network connection and do properties

then select "Internet Protocol TCP/IP" (DO NOT select TCP/IP version 6 if its listed) and click the peoperties button

and make sure its set to obtain an IP adress and DNS server adress automatically

Once you have done that reboot and try the net again

SCREENSHOT ENCLOSED

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