• All Community
    • All Community
    • Forums
    • Ideas
    • Blogs
Advanced

Not what you are looking for? Ask the experts!

Kudos1 Stats

Is Norton Security Suite blocking a PC on my home network?

Yesterday I installed Norton Security Suite on my two old PCs that are connected to each other via a Windows home network.  One PC is running Windows 7 and the other is running Windows XP. 

After the installation and reboot, I discovered a problem with my network.  While both PCs were able to connect to the Internet, and while the XP-PC could "see" the Win7-PC,  The Win7-PC could not "see" the XP-PC.

I tried hunting through the arcane Windows 7 control panel menu tree to find a solution, but came up with nothing.

Then last night, after rebooting both computers, the XP-PC miraculously re-appeared in Windows Explorer on the Win-7 PC.  So I thought the problem had somehow resolved itself.

But when I booted up both computers early this morning, the XP-PC had again vanished from Win7-PC network listing.

Now as I type this at 11 o'clock in the morning, the XP-PC has again popped up on the network view on the Win7-PC.

Since this intermittent behavior began immediately after I installed the Norton Security Suite, I can't help wondering if that's the culprit.

I'm thinking a first step toward a solution might be to disconnect the Internet cable from my modem/router, and then turn off Norton Security Suite.  But I'm not sure how to temporarily turn it off.

Can someone help me with this?

Will in Seattle a.k.a. "Clueless"

Replies

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

First question is what security software you had installed on those computers before installing Norton? Did you fully remove it using the removal utility for that software?

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

My previous security software was Norton Anti-virus provided me by my previous ISP, Centurylink .

I switched my ISP to Comcast/Xfinity, and they provided Norton Security Suite. 

So I before installing the Norton Security suite provided by Comcast, I uninstalled the Centurylink versions of Norton Antivirus from both computers, using the Norton uninstall option I found on the Windows Start menu.

Kudos1 Stats

Re: Is Norton Security Suite blocking a PC on my home network?

Hi Clueless in Seatlle,

Please see the following NSS FAQ I authored from the Comcast Security Forum:

http://forums.xfinity.com/t5/Anti-Virus-Software-Internet-Security/How-To-Uninstall-Reinstall-Norton-Security-Suite-after-a/m-p/870735#U870735

Chances are you were in fact using a different ISP version (Norton Security Online would be my guess) with CenturyLink and the above instructions re running removal tool portion (Step 5) of the Norton Remove and Reinstall Tool needs to be followed.

Come back with any questions you may have.

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Thanks, yank, for that thorough set of instructions. I have a couple of questions before I begin:

1.  Where you wrote "Uninstall NSS via normal removal procedures. (Add/Remove programs )," does that mean to remove the second, i.e., the current installed version I received from Comcast? As well as any remnants of the old Centurylink Norton Antivirus?

2.  May I disconnect my modem/router from the Internet while uninstalling and reinstalling NSS? (I would download the fresh version of NSS prior disconnecting the modem and starting the uninstall/reinstall procedure). Or does the NSS installation require Internet access to complete it's work?

Will in Seattle a.k.a. "Clueless"

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

H Will,

1 = Yes

2 = I would not suggest it, as internet is necessary to not only activate Norton, but to also verify you are a Comcast customer.  It is necessary for you to be connected to the internet via your residential modem and logged into your Primary Comcast Account in order to download NSS anyway. 

BTW here is information from this link in regards to the Norton Remove and Reinstall Tool

Under Before you Begin:

You need to have an Internet connection

Let us know how things go.

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Just to make sure I've understood you correctly: I will need to leave each of my PCs unprotected while I go through the steps of this procedure.  Is that right?

It looks like I've got a project to keep me busy for the rest of the morning.

Thanks again for the help, and for sticking with me while I give this a try.

Will in Seattle

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

If you already have the Norton downloaded, you will not be opening any browsers on  your computer for this process. The only things that might try to access the internet are programs you have installed that might look for updates. And the Windows Firewall will be turned on when you uninstall Norton, so you are not totally unprotected for the few minutes it takes to get Norton installed.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Hi again, yank,

I just completed the uninstall/reintsall of Norton Security Suite on the problematic Win7-PC, and in the process came across an old Norton installation from 2012.  I didn't even receive the PC until my 70th birthday in 2013, so this must've been left over from the previous owner.  I did my best to remove all traces of previous installations and then did a fresh install of NSS.  So now we'll see if my home network has stabilized.  If not, then I'll repeat the procedure on the XP-PC.

In the meantime, the NSS installation program wants me to install a Norton Security Toolbar as an addon to Firefox.  Would you recommend that?

Will in Seattle

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Well it's been 24 hours since I uninstalled and reinstalled NSS, and my home network seems to be back to normal.  So I'm going to mark this problem as solved.

Many thanks, yank and peterweb for taking the time to help me get my network working again.

Will in Seattle a.k.a. "Clueless"

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Cancel that last message.

This morning at bootup, my Windows home network was again dead in the water.  Dead both ways this time; neither computer can "see" the other.

So it's now even worse than it was before, when only one of the computers was "blind."

As soon as I've got some free time today, I'll try the uninstall/reinstall procedure on the XP-PC.  Maybe I'll get lucky.

Will in Seattle

P.S.  Is there a way to mark a thread "unsolved"?

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Hello Clueless

You can click on a link on the bottom of the post you marked as the solution. That should remove the solution. If you have any problem doing it, you can click on Notify A Moderator and ask them to remove it.

Have a Good Night and

Thanks.

Success always occurs in private and failure in full view. Windows 7 Pro 64 bit Norton Core Security Plus 22.17.1.50 Core Firmware 282 I E 11 Chrome latest version.
Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Thanks, floplot.  I've unmarked this thread as solved, and in the meantime have come up with what appears to be a provisional solution.

The clue that tipped me off was the intermittent aspect of the problem:  Sometimes PC#1 could "see" PC#2 but PC#2 couldn't  "see" PC #1, and vice-versa.  Sometimes neither PC could "see" the other, but  sometimes both PCs could see each other.

It seemed that this erratic network behavior was sometimes related to the order in which I booted up the two PCs.  So I've been experimenting and seem to have come up with a boot-up procedure that results in a functional network connection between the two PCs.  It's still too early to tell if this procedure will prove to be consistently reliable, but so far it seems to be doing the trick.

That raises the question of what role, if any,  did my recent  installation of Norton Security Suite play in the crashing of my network?  Was it just a coincidence that my network crashed immediately following the NSS installation?

At this point, my mantra is "if it works, don't fix it."  So if I can keep my two outmoded old PCs talking to each other by simply adhering to a simple set of boot-up steps, then I can live with that, even if I don't understand how or why it works.

Will in Seattle, a.k.a. "Clueless"

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

I think I may have finally found the culprit that's been blocking my home network.  An acquaintance on a local BBS suggested I disable the Smart Firewall on both machines.  He said the hardware firewall in my Comcast modem/router should be adequate.  So yesterday I followed his advice and now when I boot up my two PCs they both are able to immediately find each other on my home network. 

So, now I'm wondering if there's a way to configure the Norton Smart Firewall so that it will allow my two PCs to see each other.

Or should I just put my trust in the firewall in the modem/router?

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Today is day four of operating my two PCs with the Norton Smart Firewall disabled; and during these four days days I've encountered zero problems with my Windows home network.  So I believe I can now, with some degree of confidence,  mark this problem as solved.

But if it's feasible and advisable, I'd like to learn how to configure the Norton Smart Firewall so that I can turn it back on and have it set so as to allow my two PCs to freely talk to each other while the firewall is enabled. 

A new thread is probably the place to ask that question.

Before signing off on this thread I'd like to again thank yank, peterweb, and floplot for offering their time and expertise in  helping me work through this problem.

Will in Seattle, a.k.a. "Clueless"

P.S.  Here's a link to the new thread:  Configure Norton Smart Firewall to Allow PCs on Windows Home Network

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Try resetting your Norton firewall on both computers. 

To reset the Norton firewall, from the main Norton Security screen click on Settings - Firewall. On the General tab, click on Reset beside Firewall Reset. Restart your computer. As you use programs that access your network/internet, the firewall rules will be created again.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

Hi again, peterweb,

Thanks for checking back in with me.

You didn't say in your post whether you wanted me to enable the Norton Smart Firewall before I performed the Firewall reset.  So I made a guess and went ahead and first enabled the Firewall before I reset it on both PCs.

On one of the machines I was given a choice between private and public network.  I chose private.  On the other machine I wasn't shown that dialogue box.

After the reset and reboot, the network was broken again.  Strangely, one of the PCs was unable to even see itself on the network.

So I've had to disable the Norton Smart Firewall to regain access to my network.

Any ideas on what I did wrong?

Will in Seattle

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

On both computers go to Control Panel - Network and Internet - Network and Sharing Center - Advanced sharing settings. Choose the Private profile and make the settings as you see them in the image below.  With these settings I can remote from and to both my computers.


Things happen. Export/Backup your Norton Password Manager data.
Accepted Solution
Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

I may have received a solution to this problem in a post on my other forum thread:

Configure Norton Smart Firewall to Allow PCs on Windows Home Network

TabbyMan2 suggested that I "enter the IP address of each PC/device in the Firewall settings under 'Device Trust.'"

I gave it a try and when I rebooted the PCs, they both were able to see each other right from the get go.

Time will tell if this solution will stick.  But for now, I'm cautiously optimistic that I may finally have my home network working again.

Will in Seattle, a.k.a. "Clueless"

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

The trick of entering the IP addresses of my two PCs under "Device Trust" in Norton Smart Firewall seems to have solved the problems I was having with my home network.  So now I have a new question.  Should I start a new thread for it?

The question concerns the hardware firewall in the modem/router that I received from Comcast/xfinity.  While I was troubleshooting my home network malfunction,  I kept the hardware firewall active, because I had to turn off the Norton Smart Firewall in order to use my network.  Now that I've got the Norton Smart Firewall configured so that it no longer blocks my home network, I'm running both the modem/router's hardware firewall as well as the Norton Smart Firewalls on both of my two PCs. 

An acquaintance on a local BBS is berating me for doing this.  He says that the hardware firewall is more than adequate and that it's not only "silly" to run the Norton Smart Firewall, but also that by doing so I'm putting my PCs at risk of getting all messed up by conflicts between the two different firewalls.  For example, he says, the modem/router could change the IP addresses of one or both of my PCs.  Then I'd have to go the trouble of finding the new IP addresses and updating the Norton firewall settings all over again.

But after I've put all this time and effort into finally getting my network to function again while running the Norton Smart Firewall, I hate to just turn around and disable the Norton Smart Firewall.

I'd be grateful for your opinion on this question:  Should I now permanently disable the Norton Smart Firewalls on both my PCs and rely only on the hardware firewall in the modem/router?

Will in Seattle, a.k.a. "Clueless"

Kudos0

Re: Is Norton Security Suite blocking a PC on my home network?

hello

This thread is closed from further comment. Please visit the forum to start a new thread.