Solved

Network connectivity between Windows 7 pcs was down, but can connect to the net

Posted on 2014-03-11
5
322 Views
Last Modified: 2016-11-23
Hello,
I have been in this field a long long time and I saw something today that really baffled me. I have a network of 8 pcs. Using one Windows 7 pc as a server. All of a sudden, none of the 8 pcs (all Windows 7, 64 bit Dell XPS') could NOT talk to each other or the server. But, I can remote into one of the 8 pcs and can get on the net. So it was not the cable modem or the hub. I need to verify the pc I logged into had a fixed IP address but no...the server (Windows 7 pc) had a fixed IP address and it was isolated from everything else but still had access to the internet. The AV on all is Norton Internet Security 2013/14. In my past experience, if there is an attack, Symantec's products shutdown the offending IP address...so this is what I am going on. At other places, I have Symatnec Endpoint Protection blocking attacking pcs for 10 minutes. Becuase all of a sudden, everything started working again. The pcs were already updated with Microsoft Updates...strange things happen on every second Tuesday of the month I swear. What do you think? The hubs are all new, switches are new, cable modem is new. Wiring is in perfect shape.
Thanks,
J
0
Comment
Question by:dronethought
5 Comments
 
LVL 24

Expert Comment

by:DMTechGrooup
ID: 39922439
I think you issue is the Norton FW.. if you have a good endpoint FW, imo, there isnt much need for a FW other than the default windows FW on the client.

Also it could be a netbios or DNS deal.. did you try contacting the other PC's with the IP addresses?
0
 
LVL 10

Expert Comment

by:Scott Thomson
ID: 39922561
Check when updates on the machines / server are occuring (especially AV)
because i would suggest that this is what may be the case.

Do your server/workstations update automatically..? that sounds like its in tune with MS update releases..
0
 
LVL 2

Accepted Solution

by:
dronethought earned 0 total points
ID: 39935022
Did further research. the Function Discovery Resource Publication was not turning on. Even though I set it to Automatic, Now I have it as Automatic (Delayed). Also, need Computer Browser to be on Automatic when using a Windows 7 pc as a file share. I thought it was an update but it was not.

As for the default FW in Windows 7, the built in FW has failed me on an virus that was a fake "Update your Flash Player" executable. The fake .exe file was able to go out and download the virus contents. The built in FW was on. All rules set correctly. The executable could not pass through Symantec's corporate product.
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
If you get continual lockouts after changing your Active Directory password, there are several possible reasons.  Two of the most common are using other devices to access your email and stored passwords in the credential manager of windows.
This Micro Tutorial will give you a introduction in two parts how to utilize Windows Live Movie Maker to its maximum editing capability. This will be demonstrated using Windows Live Movie Maker on Windows 7 operating system.
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question