Solved

SBS 2011 Intermittent Connectivity

Posted on 2013-01-11
6
591 Views
Last Modified: 2013-01-13
Hi all, complaints of the new year!

We are running SBS 2011 as out office server. Got 12 PC/Laptops connected to it.
SBS is fully patched and well looked after.
Installed on the SBS box too is an SQL database.

Past two weeks we have on our users pc "lost" connectivity - Exchange gets disconnected and the SQL throws ODBC errors. Some instances the shared folders dissappear and we can only view the redirected folder.

A couple of seconds later - all back to normal.

RDP connection to the server throws out a protocal error and disconnects.

I have:
Replaced the switches.
Replaced the netgear firewall.
Replaced the network card
Turned off Power management on the NIC.
Ran Fix Your network. (Complains that it couldn't configure router - but the relevant ports are opening and working)
No errors in event logs other then the ongoing "safe to ignore" ones.

Other then that everything working 100% - just we loose connection. I done seem to loose connectivity more often the more we load it. Like playing movies from the server etc.

What am missing??

Or send me in the right direction on some network tools?

Thanks
Sean
0
Comment
Question by:SeanNij
  • 3
  • 2
6 Comments
 
LVL 37

Expert Comment

by:Neil Russell
ID: 38766797
Does it affect ALL machines at the same time?
0
 
LVL 1

Author Comment

by:SeanNij
ID: 38766818
Nope.

Mostly the exchange gets disconnected same time BUT not all users. My laptop for example and one other collegues never seem to get disconnected from Exchange, but we do loose connection to the server.

One other thing: I often use the shutdown command in dos prompt to shutdown pc's left on or servers left on.

Oddly, the firstime i type shutdown /s /f /m \\geneserver it will sometime come back saying cannot connect / find blah blah, and if i immediatly type the command again it will 'see' the server and shutdown.
0
 
LVL 6

Accepted Solution

by:
arroryn earned 500 total points
ID: 38766981
Is IPv6 active on the NIC? If it is, and it's not needed, then turn it off. That's been known to cause connectivity issues.
0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 
LVL 1

Author Comment

by:SeanNij
ID: 38767010
IPV6 is need for exchange on the box surely?
0
 
LVL 6

Expert Comment

by:arroryn
ID: 38767066
IPv6 is certainly needed to complete the Exchange installation, but as far as I am aware it can be disabled in a working environment without any effects.

You made me question it though and I've done a couple of checks. It should be alright in a standard basic install.

http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/d0cade08-55e1-4748-be2b-7d5433b364ba

http://social.technet.microsoft.com/Forums/en/exchangesvradmin/thread/4459d006-2803-4f8c-b0af-f6b2cdadf7a4

I'd understand if the OP wanted to avoid though.
0
 
LVL 1

Author Closing Comment

by:SeanNij
ID: 38773311
Arroryn, thanks! I disabled it as suggested in one of the articles. I did renable it again afterwards and ran fix my network - which then picked up I was missing records from DNS.

Since then - all 100%
Thank you.
0

Featured Post

Give your grad a cloud of their own!

With up to 8TB of storage, give your favorite graduate their own personal cloud to centralize all their photos, videos and music in one safe place. They can save, sync and share all their stuff, and automatic photo backup helps free up space on their smartphone and tablet.

Question has a verified solution.

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

This guide is intended for migrating Windows 2003 Standard with Exchange 2003 to Windows Small Business Server 2008. You will need the following: Exchange Best Practice Analyzer: http://www.microsoft.com/downloads/details.aspx?FamilyID=DBAB201F-…
The articles for turning off the Client firewall policy on the internet are for SBS 2008 and don't really help for SBS 2011. They actually moved the Client firewall policy. In 2011, the client firewall policy has moved to the SBS computers conta…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.
This is a video describing the growing solar energy use in Utah. This is a topic that greatly interests me and so I decided to produce a video about it.

930 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now