NETserver, mDNSResponder, syslogd using up large processing power, why?

Launch the Console app and see what the system.log says. If NETserver is associated with MoabieMe, then that might be the issue. I don't have such an account and have no such service running.

I'm seeing a similar problem -- but I don't have Back to my Mac and I don't have MobileMe.
I've gotten up a couple of mornings in the last week and found my fans running and NETserver running at 70% on both processors.

Looking at the system log, I'm seeing an ongoing series of error messages that suggest snapzpro is the culprit:

10/5/09 5:18:57 AM [0x0-0x15015].com.ambrosiasw.snapz[243] Mon Oct 5 05:18:57 chuckbos-macbook-pro.local Snapz Pro X[243] <Error>: kCGErrorInvalidOperation: _CGSFindSharedWindow: WID 2819

But even after shutting down SnapzPro, NETserver continues to keep running at 70%.

I'm having the same problem. The NETserver process is consuming 70% of my CPU and has been for hours. This is a new development since, I think, I installed the latest patch to snow leopard. For what it's worth, I killed the Netserver process yesterday (via Activity Monitor), and the system continued to work normally. Still, it's annoying.

I see that the process is owned by my user id - not root. So it is likely being launched by something I'm doing, though I don't know what that might be. However, I suspect it could be related to my Brother printer (MFC-490CW). It's a wireless printer/scanner, etc, and my Mac needs to listen for inbound connections from the scanner. I notice this problem seems to occur a few hours after I scan something.

Of course, I could be completely wrong.

Try a google search for * NETserver*, which should lead you to the underlying app running it.

I think we've found the common component.
I also have a Brother MFC printer (not wireless).

Yo! I was having this problem and stumbled onto this forum. I looked around the web in all places and found no answers. So I was reading one of my favorite blogs and stumbled across a cool new app, "Appfresh". ( http://metaquark.de/appfresh/ ) It updates all of your 3rd party software applications , plugins, and more.

Point is... I ran this and updated all of my apps, it shows you things you don't remember you even had installed and updates them. Restarted my computer, and BANG! The problem was solved! To see if this would fix the same problem on a different computer I ran Appfresh on my wife's computer. Again, success!

Give it a try, it worked for me.

Same problem here guys. I have the brother networked printer software too.

Here's a screenshot.

http://imgur.com/YZ7DV

I suggest we email brother about this...

http://www.brother-usa.com/askus/default.aspx

Hi all,
I work over at Brothers customer support line for the Mac department, I recently got a call regarding the netserver problem. I don't code anything nor do I do any work on the software itself, just general tech support. I can tell you guys that the netserver app is located in hd>library>printers>brother>utilities>server and that its used for network scanning.

Try adding the netserver application to the firewall, that worked for the last person that I spoke with on this issue.

I also had the issue escalated to our software engineers for research.. though I cannot relay what information they find or anything, I don't have much contact with them.

Yvonne_TN wrote:
Try adding the netserver application to the firewall, that worked for the last person that I spoke with on this issue.

My firewall is turned off and NETserver is still running at >65%