The system appears to have had a slow rj45. replaced MB, now cant acquire ip address. a tech worked on it and used the rj45 w/ no problem. why is this rj45 not working with a new dell supplied MB? The isp is comcast and there is a usb connection which works ok. I cant see the possible issue with the rj45 port. Diagnostics were done and no problems on the 1394 area. what gives?
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Re: onboard rj45 quirk?
This could possibly be a driver glitch. Uninstall the drivers from the device manger, then shut down and restart. Make sure the device is attached for the restart. The machine will find it and automatically reinstall the drivers. If this is a driver glitch, then this will clear it. If it doesn't fix it, then get back with me and we'll see what else I can find on the matter.
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Plug LAN cables or turn ON Wifi. Enter Run command or type cmd. on the command prompt screen ( black it is ) type: ipconfig /release enter next type: ipconfig /renew enter
type exit NOTE: if the problems still remains,which means the router use a STATICip eg.192.168.1.5 ( CONFIG INTERNET PROTOCOL TCP/IP = ip address : 192.168.1.5 subnet mask :255.255.255.0 default gateway : 192.168.0.8 )
Are all the LEDs on the wireless router are on?
When you reset the wireless router wait at least 1/2 min before powering the router up.
Right click on the wireless connection and click on Repair, this will force the wireless router to issue a new IP address to the wireless card. If the the red x is still on the wireless conection then :-
To check if the wireless card can communicate with the wireless router, ping the IP address of the wireless router, (this is the IP address that is used to login and configure the wireless router) if you get no reply and all packets are lost, then connect a network cable from the laptop's RJ45 port to the wireless router's RJ45 port and do the ping test again.
If you still get no reply and lost packets then most likely you have a faulty wireless router.
Get back to me on the results of the tests and I can then advise what to do next.
Log into the Belkin router and make sure that the DHCP services are running. If it is, and you still are not getting addresses, perform a factory reset of the router. There is a link in the web management console to do this.
I would connect it to the router using a lan cable to verify that it will get a IP address and connect to the internet. Write down the IP information and make a static wireless connection with that info. It should work hardwired and wirelessly with this info. If it doesn't work wirelessly you may have a bad wireless card or you may find that their is already conflicting static IP info in the connection that has to be removed. Make sure that on your internet protocol (TCP/IP) properties that you have selected "Obtain an IP address automatically" and Obtain DNS server address automatically". Clear any settings that you may see there.
When you connect two computers together without a network/LAN hub you need to use a cross over cable.
Both computers need to be in the same workgroup (name).
Both computers need to have different TCP/IP address and be in the same IP address range (ie a fixed IP address)
If you want to see and copy and move files between computers, the drives and or folders have to be sharing on.
This is the general network setup, you can restrict users on each computer with full access or limited access to drives and folders.
On the Support tab - what does it say the "Address Type" ? If its DHCP then check that on the TCP/IP properties; If on "automatic IP address" then it wont take any entered IP address.
Do not put any IP address.
Check that "Obtain an IP address automatically" is checked and also "Obtain DNS server address automatically" is also checked. On wireless network tab check "Use Windows to configure my wireless network settings".
On preferred network check that your wireless network is there, if not add it and move it up
Sure you can try system restore and restore it to the day before the problem occurred but if it has been a while then it is possible that there may not be a restore point available to restore it to And if that is the case then open "network connections" in the control panel and "right click" your connection that says limited or no connectivity and select "status" from the drop down menu then click the "support" tab on top and where it says "IP Address" look to see if it starts with a 169.xxx.xxx.xxx number and if it does start with 169 then that means that your computer was unable to acquire an IP address from your router or modem and it assigned itself a default machine address of 169.xxx.xxx.xxx (xxx is just space filler for numbers they could be different numbers) And so if it does say 169 then click the repair button and it will try to acquire a new address and if it is still unable to acquire an address and you end up with a 169 number again then if you have a router go over to the router and unplug the power cord for 10 seconds and plug it back in and then click repair again and it should work. Most routers assign an IP address that starts with a 192.168 if you don’t have a router and your modem is plugged directly into your computer then try unplugging the modem and plugging it back in but wait for the modem to initialize (boot-up) all the way (you will know when all of the lights on the modem are on) before clicking repair button.
if none of the above helps then let me know and ill take you to the next step in fixing the problem