Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Can't connect two computers to one router?

06 Dec 2012   #1

W7 64
Can't connect two computers to one router?


So everything was fine until today when I woke up. My internet wouldn't work, it was saying that I was connected with internet access but never gave me it. I checked my router settings and it shows all the correct things.

So then, I decided to check my brother's computer which is in the same room and he couldn't connect either. I turned my computer off and somehow, my brother's computer had internet access and could access the internet.

So, I need help.

Posting from my brother's PC now. I have attempted everything, restarted the power to everything about 5 times. Our internet has always worked and has until today.

My System SpecsSystem Spec
06 Dec 2012   #2

Win 7 ultimate x64 sp1

router should be set up with dhcp ON, so it can assign different IP addresses to the pcs. both pc's should be set to obtain their IP addresses automatically. if the pcs have been set with fixed IP addresses, they will conflict and only one will get on, typically the first one that boots up, which sounds like your problem. hopefully you have access to the pc adapter settings and the router settings. if you must use fixed ip addresses make sure they are different on each pc.

note: even if the router is set to supply dhcp, it also may have a setting to force a fixed IP to a specific MAC address, which is unique to each pc. again, if used, this must assign different ip addresses to each device. also check your lease tables.

check your pc settings by opening an admin. command prompt and typing

ipconfig /all

then hit return. compare settings to same on working pc. incorrect dns settings can cause an apparent good connection without it being able to actually browse.

if the non-connecting pc is not picking up an IP correctly, windows assigns an APIPA (automatic private ip address) in the range 169.x.y.z. the router won't let that get on the internet tho it's OK for your local area network. sometimes right clicking the notification tray icon & choosing 'troubleshoot...' might fix that.

checking the logs on the router, and on the pc (with event viewer) may guide you as well if the above doesn't.
My System SpecsSystem Spec
06 Dec 2012   #3

W7 64

Yes, I've got access to my router settings but what should I change?
My System SpecsSystem Spec

06 Dec 2012   #4

W7 64

I see, but what are my looking for when I do ipconfig /all?
My System SpecsSystem Spec
06 Dec 2012   #5

W7 64

Another thing: If I attempt to start my other computer up the one that can connect dissconnects and neither can get on.
My System SpecsSystem Spec
06 Dec 2012   #6
Microsoft MVP

Windows 7 Ultimate X64 SP1

Try powering off the modem, router, and both PCs. Turn back on in this order and wait for each one to fully boot before turning the next one on.

3.1st PC
4.2nd PC
My System SpecsSystem Spec

 Can't connect two computers to one router?

Thread Tools

Similar help and support threads
Thread Forum
Router and NAS show as computers on network
In the network map, the NAS shows as a computer, while the Router shows as a router, but also as a computer that can't be placed in the network. Also, the router shows model #, not SSID. In explorer, when I view the network, both show up as computers, as well as router (infrastructure, but...
Network & Sharing
Connect router wirelessly to main router
Recently I bought a TP-Link WR841N router and, unaware of what it needed, there had to be an ethernet cable coming from the main router (BT Homehub 3) for it to work. Is there any way I can connect these two wirelessly? I don't mind whatever way I connect it to my PC.
Network & Sharing
blocking one of the computers connected to router
hi , i have 2 computers at my house , and sometimes i just want to block the other one for internet connection while im online , because my step dad knows nothing about internet connections , and in his opinion , opening as much bittorent apps as you can it's the best way to achieve success in life...
Network & Sharing
2 routers, cant see computers on other router
This is more of a general networking question (I think) but I'll give it a shot here anyway. I have 2 wireless routers/switches in my house. I have a router downstairs and one upstairs My setup is currently like this Downstairs: Computer Printer
Network & Sharing
Computers at home connect to same router but with different names?
Hi all, I have a strange problem. All three of my computers at home (all on windows 7 ultimate 64bit) are connecting to the same router with same SSID, but they end up having duplicate names such as NetworkName 1, NetworkName 2, NetworkName 3. This is preventing me from having them share via...
Network & Sharing

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:05.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App