I have the Precision M2400 and the same wireless broadband and wireless cards (5530 & 5300, respectively).  I am running XP.  Same issue.  SMMANAGER.exe (Smith Micro Manager Connection) consumes 50% of the processor constantly.  Killing this application also kills Dell Control Point Connection Manager, which in turn renders the ATT mobile card useless.

I have diligently searched the web for a solution or alternative, and have not found one.  

Also, Dell customer support has been of no use.

I had the same problem.  Saw a few postings regarding the Controlpoint Connection Manager.  I don't use a broadband card so I uninstalled Connection Manager.  My CPU utilization dropped immediately.  SMManager.exe was consuming almost 100% of core 1.  Looks like they need to do a little work on that software :emotion-1:

I have the same problem on a E6400, 25-100% cpu hogging constantly.  Any clues, dear Dell experts?

Thanks

Torkild

I'm having this problem as well, typically coming out of standby. Killing SMManager.exe disables the A&T card and maybe bluetooth (i'm not sure). DCP will then report an error about not being able to communicate with the connection manager, but DCP continues to work. WiFi also continues to work. Occasionally SMManager.exe actually crashes instead of consuming the CPU time.

I've commented this in more detail in my blog:

http://douggaff.blogspot.com/2008/11/dell-e6500-good-hardware-but-lots-of.html

Hopefully Dell will get on this soon.

Exactly same issue here, got AT&T card installed and no matter what at random will use upto 100% CPU and will not connect/disconnect. Once killed cannot reconnect. Have to reboot every time I want to use the AT&T card :( always does it off standby, but can do it when in use too.

I have an E6500 with Intel NIC, Intel Wi-Fi (5300), Bluetooth and AT&T card. Also using Vista32.

Seems that the latest version (A11) of the Dell CCM may actually resolve this! Have had it on a couple of days and it is so far working ok. Not done the suspend tests yet but on reboot and disable/enable of wireless cards it seems to be working ok.

Big download though!

I have the latest download for my M6400 - and the problem still occurs (although with a quad core lappy it isn't as noticable). It happens pretty much everytime I resume from sleep or hibernate. If I kill the app it also kills my touchpad settings (I have disabled tap on the touch pad for example, and the middle button is double click) as well as killing the broadband card.

THe only solution so far for me is to never hibernate, simply to shut down everytime. Not ideal.

Well another week and still no high CPU with this latest release so I am happy that it is working for me.

Nothing has helped thus far, so I will try A11 and see if it gets better.

Hi folks,

The latest drivers seemed to have fixed the 50% CPU issue, but I was still having suspend problems. I think I've fixed this in a roundabout way. I managed to track down the suspend issues to the WWAN 5530 and Dell Connection Manager. I solved it by removing the Dell Connection Manager and installing another Dell WWAN utility. YMMV, but I hope this helps someone:

http://douggaff.blogspot.com/2009/02/e6500-suspend-problem-solved.html