Question

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can connect to the internet but unable to access on workgroup resources

By techrep23 ·
We have like 42 work station in our office, all of them are recently formatted and installed with Windows XP SP3, we're not using client server so all PC are connected to a switch in our server cabinet, we are only using one workgroup for the entire office. Before we formatted all the PC's and installed it with license OS all of them can share resources like printer, files etc., but after the format took place some of the PC's can still share resource but after 15-30 mins it quits were getting an error msg, but as soon as you restart the PC then it can access back, but same thing happened after a few mins. I also noticed that internet still up when PC unable to connect to workgroup but were unable to repair IP address it says an error occurred while trying to renew ip...

Heres the thing before it was formatted it doesn't have antivirus, now we installed it with Mcafee and AVIRA but I've tried disabling them still the same thing happened.

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If you only formatted

by Jacky Howe In reply to can connect to the intern ...

each System you didn't remove all of the files. You should have used Darik's Boot & Nuke or something similar.

It is never a good idea to run two antivirus scanners simultaneously. However, if only one of the scanners has real-time protection enabled and the second scanner is used only to manually scan selected files, they may possible co-exist. In some cases, an antivirus scanner will not install if it detects another antivirus scanner already installed on the system.


If you find anything with these tools, turn off System Restore and run them again in Safe Mode

Download Spybot - Search & Destroy and install it. Update it. http://www.safer-networking.org/en/download/index.html

Download Malwarebytes Anti-Malware, install it and update it.

<a href="http://download.bleepingcomputer.com/malwarebytes/mbam-setup.exe" target="_blank"><u>Malwarebytes</u></a>

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform Quick Scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.

If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
<a href="http://malwarebytes.gt500.org/mbam-rules.exe" target="_blank"><u>mbam-rules</u></a>

I would keep scanning with it until it is clean by closing out and rebooting and running it again.

Run this Rootkit Revealer GMer
<a href="http://www.gmer.net/index.php" target="_blank"><u>Gmer</u></a>

FAQ
<a href="http://www.gmer.net/faq.php" target="_blank"><u>FAQ</u></a>

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only 10 concurrent connections allowed without a server

by CG IT In reply to can connect to the intern ...

So for your 42 workstations only 10 can access the same share on any computer at the same time.

If one of the 10 stop connecting to the share another one can connect. that's probably why you can connect at one time but others you can't.

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how about the local area connection side

by techrep23 In reply to only 10 concurrent connec ...

it seems that every time it quit I'm unable to renew the IP address are they related or totally different issue? also out of 42 PC's only some are affected, any suggestion on what kind off server do we need to setup.

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This is where things get difficult

by OH Smeg In reply to how about the local area ...

I would imagine that there was some kind of Registry Hack applied to overcome the 10 Concurrent Connection Limit built into XP. Though what it actually was I have no idea.

But what I think is happening here is that the 10 Concurrent Connection Limit is getting over run and the individual systems are not releasing connections when they are no longer required and it is at that point in time or shortly after it that the IP Stacks fall over taking the individual computers off the LAN but allowing them to retain their Internet Connection.

What are you using as Network Protocols here? Things like VLAN, NDUIS and TCP/IP at the very least should be enabled but you should also add in the NetBIOS Protocol to help the system out.

But without knowing what the original Setup was it's very hard to even suggest a way of returning to that.

As for a Server that all depends on how much money is available for the Hardware & Licensing of the Server. If you use a M$ Server OS you'll need at least an additional 37 CAL's which effectively means that you buy a 50 Pack as it's cheaper that way than buying smaller Packs to make up the Number 42 in addition to the 5 CAL's that come with the Server OS.

Even then you may require a different type of CAL and instead of User CAL's you may require Device CAL's for the best results for the use of the LAN.

You could always use a Linux Based Server and not have the Licensing Issues associated with M$ Based Servers but depending on how knowledgeable the Techs involved are this may not be a suitable alternative.

Also you need to first define what exactly it is that you want the server to do. Be it a File Server, Print Server, Domain Controller or what. Depending on what you want the server to do will decide what type of OS and Hardware Specifications you need to look at.

Col

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