Well it looks like a service called "cFosSpeed System Service" is the culprit. Disable that one service and internet speed is normal. It cuts download speeds by a factor of...If the clean boot speed is normal, then you have some serious investigating to perform.
Generally I just start with clean booting the startup items first leaving the non-Microsoft services alone.
However this can produced varied results as a service that corresponds with a startup item may very well be related and fail to prove beneficial in the diagnosis.
It's generally a lot of trial and error and some sophisticated manipulation of the two combined with some understanding of a particular startup item and whether or not there is an associated service as well.
I also watched Task Manager during the running of speed test and the network performance matched what speed test was showing. This indicates to me that there is nothing else running on the machine that is competing for the network.Tried removing Norton Security Suite. No change in internet speed.
Norton Security Suite is installed on the other Windows OS's and I checked the settings and they seemed to be the same on Windows 8 machine as on the Windows 7 machines. But I'll admit that the number of settings is mind bogglingly large so there may be something I missed. But since uninstalling Norton did not improve things I don't think that is the issue.
So still looking for ideas.
Thanks
Jim
OK, after the clean boot, speed was what it should be. But when I reverted back to normal start up, slow internet speed returned. What should I do to try to isolate which of the things turned off is(are) causing the slow down?Try clean booting it and see if that results in any speed difference.
http://support.microsoft.com/kb/929135/
I tried toggling among Auto Negotiate, 100 half duplex, and 100 full duplex with no impact on speed. My adapter's setting for this was in a separate tab called "Link Speed" and it shows what was negotiated. When in Auto Negotiate it gets 100 full duplex.Additionally, can you check this page Link Removed
Confirm, in fact, that that is the adapter you are using and that you do have the latest Software / Drivers installed for you version of Windows 8 (32 or 64 bit)
AND
You may want to check the properties of that NIC and under the "Advanced" tab look for something called Speed & Duplex. You may want to experiment with changing it from Auto Negotiate to something like
100 half
and then to
100 full
and see if that has any impact on the issue.
Sometimes certain hardware seems to have more problems with an Auto Negotiate setting.
Link Removed
Generally I just start with clean booting the startup items first leaving the non-Microsoft services alone.Link Removed
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- Log on to the computer by using an account that has administrator rights.
- Swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.
- Type msconfig in the search box, and then tap or click msconfig.
- Tap or click the Services tab, and then tap or click to select the Hide all Microsoft services check box.
- Tap or click to select the upper half of the check boxes in the Service list.
- Tap or click OK, and then tap or click Restart.
- After the computer finishes restarting, determine whether the problem still occurs.
- If the problem still occurs, repeat steps 1 through 6, but clear the lower half of the check boxes in the Service list that you originally selected.
- If the problem does not occur, repeat steps 1 through 6, and select only the upper half of the remaining check boxes that are cleared in the Service list. Repeat these steps until you have selected all the check boxes.
- If you still experience the problem when only one service is selected in the Service list, this means that the selected service causes the problem, and you should go to step 11. If no service causes the problem, go to step 8.
- Repeat steps 1 and 3 in this section.
- Tap or click the Startup tab, and then tap or click to select the upper half of the check boxes in the Startup Item list.
- Click OK, and then click Restart.
- If the problem still occurs, repeat steps 8 and 9, but clear the lower half of the checked boxes in the Startup Item list that you originally selected.
- If the problem does not occur, repeat steps 8 and 9, and select only the upper half of the remaining check boxes that are cleared in the Startup Item list. Repeat these steps until you have selected all the check boxes.
- If you still experience the problem after only one Startup Item is selected in the Startup Item list, this means that the selected Startup Item causes the problem, and you should go to step 11. If no Startup Item causes this problem, a Microsoft service probably causes the problem. To determine which Microsoft service may be causing the problem, repeat steps 1 through 7 without selecting the Hide all Microsoft services check box in each step.
- After you determine the startup item or the service that causes the problem, contact the program manufacturer to determine whether the problem can be resolved. Or, run the System Configuration utility, and then tap or click to clear the check box for the problem item.
Well it looks like a service called "cFosSpeed System Service" is the culprit. Disable that one service and internet speed is normal. It cuts download speeds by a factor of about 15 and upload speeds by a factor of about 100.If the clean boot speed is normal, then you have some serious investigating to perform.
Generally I just start with clean booting the startup items first leaving the non-Microsoft services alone.
However this can produced varied results as a service that corresponds with a startup item may very well be related and fail to prove beneficial in the diagnosis.
It's generally a lot of trial and error and some sophisticated manipulation of the two combined with some understanding of a particular startup item and whether or not there is an associated service as well.