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Why won't my computer connect to the Internet [Solved/Closed]

Shelsie - Latest answer on Aug 21, 2014 11:27AM
Hello,
OK, so i just purchased a new laptop and have to connect it to the internet. Bought a router, installed it and hooked it all up, my laptop detects internet fine and works dandy. Only problem is, that my desktop computer that connected to a wired modem, which now has the NEW router connected to it, will not detect the internet connection.
After installing the cd and followed all the instructions, it appears we have all the cords in the right place.... here is what we did:
1) Took the existing ethernet cable from the computer and plugged it into the port labeled "internet| on the back of the router.
2) Connected one end of the supplied ethernet cable to port 1 on the router. connected the other end to the computer.
3) plugged in the router to an outlet.
4) followed onscreen instructions to finish the setup process.
Following this, i checked my laptop, it found the network and connects to it great. Tried to go online on the home desktop and it will not connect. When i try to connect, it says the following:
"Error 678:
The remote computer did not respond. For further assistance, click more info or search Help and Support Centre for this error number."
Any suggestions or help is greatly appreciated!!!!
Thanks for your help!
PS- I pretty much copied the steps i took from the instruction manual, so please don't say that they are hard to follow or vague- they were what I was given!
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Answer
+181
moins plus
Hi Shelsie,

I had the same problem. Hopefully this will help.

It sounds as though it may have been the router that assigned the IP address. This address is necessary for your comuter to connect to the internet and if it seems in anyway invalid then the computer will not be allowed to connect. So here is a way to fix that issue. If the old router assigned the IP then the new router does not recognize it as being valid.

control panel
network and internet
network and sharing - this is a title and there are smaller links under it - click on the title
view status = link after Local area connection
properties
double click on Internet protocol version IPv6 (you will need to repeat these steps with IPv4 also)
make sure that optain IPv6 (IPv4) address automatically is chosen.
make sure that optain DNS server address is automatically is chosen
click ok and restart you computer with your cable connected
If your problem was you IP address this will resolve it.

if you still have issue feel free to email me i will do what I can to help
Rhonda

barbara- Aug 21, 2014 11:25AM
Hi - I have same problem, but when techs were here to install new arris TG1672 modem/router they specifically turned of the IPv6 discovery as we have some Apple devices. Now my windows based desktop won't connect wired. My laptop will connect wired, but maybe the network adapter in the desktop is too old?
ac3mark 2980Posts Monday June 3, 2013Registration date ModeratorStatus February 23, 2015Last seen - Aug 21, 2014 11:27AM
Call the technician back out, and let them know they broke it! HAHA 10 day GO Back, he is not going to get a raise!
Answer
+24
moins plus
did you connect the modem to the port on the router that says internet or the computer? the "internet port"on the router is for the modem hook-up. the other ports on the router are for the devices that you want to connec to the internet. also are you using a static IP address or a DHCP connection on the desktop?

Answer
+12
moins plus
can I connect Dell laptop to internet by switching modem cable from I Mac to pc?

Answer
+11
moins plus
if your ever getting a new computer or laptop , i suggest saving your settings and details to a memory stick ( usb flash drive )

Answer
+9
moins plus
try this: it might fix things
1. power off the desktop computer
2. disconnect the cable that connects router to desktop (either end is OK) wait 30 secs or more
3. boot the desktop computer
4. plug in the cable you disconnected

here is what Microsoft has to say about error 678

http://support.microsoft.com/kb/892889

Answer
+4
moins plus
well if you have time warner cable then its because they suck

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