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Windows 7: Windows 7 Computer Suddenly Can't See Computers on Network

15 Aug 2010   #1
Mizmelzy

Windows 7 Home Premium
 
 
Windows 7 Computer Suddenly Can't See Computers on Network

When I tried to connect to my desktop computer from my Windows 7 Laptop, it doesn't see any other computers on the network but itself. I did check the firewall. I'm using McCafee Internet Security. It came with the laptop. I tried disabling the firewall, and I still couldn't see any of the computers on the network. When I go into McCafee and look at a network map, there it shows all the computers on the network. But when Looking at my network in windows, I don't see any other computers. I have tried to ping the computer on the network that I want to connect to and it times out. I checked the other computer, restarted it. Still nothing. Yesterday it was fine...today it can't see any of the other computers on the network.

I have a Dell Studio Laptop 4gb of ram 500gb hard drive Windows 7 64bit. If you need any other info, please let me know.


My System SpecsSystem Spec
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15 Aug 2010   #2
myzr7

Windows 7 Ulti. x64
 
 

Can you see your laptop from one of the other pc's on your network? Maybe you made some changes to something that turned of your network discovery make sure it is selected in win7 advanced sharing.
My System SpecsSystem Spec
15 Aug 2010   #3
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by Mizmelzy View Post
When I tried to connect to my desktop computer from my Windows 7 Laptop, it doesn't see any other computers on the network but itself. I did check the firewall. I'm using McCafee Internet Security. It came with the laptop. I tried disabling the firewall, and I still couldn't see any of the computers on the network. When I go into McCafee and look at a network map, there it shows all the computers on the network. But when Looking at my network in windows, I don't see any other computers. I have tried to ping the computer on the network that I want to connect to and it times out. I checked the other computer, restarted it. Still nothing. Yesterday it was fine...today it can't see any of the other computers on the network.

I have a Dell Studio Laptop 4gb of ram 500gb hard drive Windows 7 64bit. If you need any other info, please let me know.
McAfee is pretty much famous for causing problems like this. It's sometimes best to uninstall it using the tool for this in the link below.

It can also be configured to work with Windows 7 by allowing the range of IP's you are using through it's firewall but you may need to go to the McAfee forum to figure out how to do this.
|MG| McAfee Consumer Product Removal Tool 3.5.109.1 Download
My System SpecsSystem Spec
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15 Aug 2010   #4
Petey7

Windows 7 Professional SP1 64-bit
 
 

I had the same problem after my mom get a new laptop from Dell. As Chev says, the problem was McAfee and nothing I tried short of uninstalling McAfee could work. As being able to see all computer from each was a necessity for me, McAfee had to go. To be honest, I was extremely happy to get rid of it. Microsoft Security Essentials will be your best bet for a replacement. It is free and has earned a few awards in its short time on the market. McAfee on the other hand, is famous for causing a multitude of problems.
My System SpecsSystem Spec
15 Aug 2010   #5
Mizmelzy

Windows 7 Home Premium
 
 

Thanks for the info. I've uninstalled McCafee and installed the recommended Microsoft product. I can see my other computer now. Just can't see the other one, but that's not important because I don't connect to it. When a friend comes over he uses my wireless internet. When he's online I can usually see his computer connected to the network too. But now I can see my other computer, just not his. But that might be because I changed the network name too. So, I'll change it back and I'll probably see him again.

Thanks for the heads-up about McCafee.

Mel
My System SpecsSystem Spec
15 Aug 2010   #6
Petey7

Windows 7 Professional SP1 64-bit
 
 

Another thing you can do to assure all the computers can see each other correctly is to not use home group and make sure all computers have the same workgroup name.

Join or create a workgroup
My System SpecsSystem Spec
15 Aug 2010   #7
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by Mizmelzy View Post
Thanks for the info. I've uninstalled McCafee and installed the recommended Microsoft product. I can see my other computer now. Just can't see the other one, but that's not important because I don't connect to it. When a friend comes over he uses my wireless internet. When he's online I can usually see his computer connected to the network too. But now I can see my other computer, just not his. But that might be because I changed the network name too. So, I'll change it back and I'll probably see him again.

Thanks for the heads-up about McCafee.

Mel
I have nothing but luck using Homegroup but it's required that all machines are Windows 7 if you want to use it, if not then setting up a workgroup is the best option.

I've tested Homegroups six ways to Sunday on 7 completely different machines and it works flawlessly for me.

You are welcome for the info about McAfee, otherwise known as malware.
My System SpecsSystem Spec
16 Aug 2010   #8
Mizmelzy

Windows 7 Home Premium
 
 

Okay, I uninstalled McCafee with the software provided. And then changed back to my old network name. I could see everybody on the network just fine. I go to start up my computer tonight and guess what, I couldn't see my other computer again. I typed in the address to it //MEL and the folder popped up and all the folders were accessible. I can print and everything seems to be working, but I just can't see my other computer under networks. I tried restarting my computer again, and turning off and on my wireless network. I restarted the other computer nothing. I then changed the network name again, and whala.... I could see the other computer again.

So, if McCafee was the problem, why is it still happening? I've done a full virus scan, malware scan and nothing came up. So I'm thinking it's something with Windows 7. Just not sure what.

Anyone else have any ideas?
My System SpecsSystem Spec
16 Aug 2010   #9
Mizmelzy

Windows 7 Home Premium
 
 

I think I may have and idea of whats causing it, I just don't know why. Sometimes if I'm going to be away from the computer even for like 10-15 minutes, like if I'm doing laundry or something, I just just the laptop. This way my cats don't walk all over it. This puts it in hibernate. When I come back I open it it up again and enter my password and log back on. I did this tonight while bringing my laptop into the bedroom and it did it again. And thinking about today when it happened before, it was in suspend mode. I was distracted when my niece came over. So the laptop was suspended then too.

However when I type in the location and the new window pops up. Under network on the left side where the folders are it appears under Dell. But if I click on network the right pane doesn't show it. Just Dell. This time I shut down the computer let it sit for 20 seconds and then restarted it, and this time it found it again.

So I'm thinking suspend mode is what's doing it, I just don't know why. It never did it before.

Mel
My System SpecsSystem Spec
16 Aug 2010   #10
Petey7

Windows 7 Professional SP1 64-bit
 
 

Not really sure why that would cause it. Just a quick question to be sure, your computer is going into hibernation, not sleep/standby, correct?
My System SpecsSystem Spec
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 Windows 7 Computer Suddenly Can't See Computers on Network




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