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It's been a couple of weeks now that I feel that my pc is feeling slower than usual. Not just network related things but just about everything gets a delay (timings at the end of the post). It's like my IO decides to take a nap until the next reboot.
I couldn't really pinpoint what was causing the issue until I restarted my laptop with the hardware switch to turn off the wifi off in it's off state. Suddenly the machine is working at it's full speed again! Sure though once I turned wifi back on everything slowed down again. Even enabling wifi adapter without connecting to any network slows everything down.
A person would think that switching the adapter back to off disabling the adapter would fix the problem again but no luck there. The only fix to have the system run fast again is to reboot the system with the hardware switch off.
Even when I work offline without any connection whatsoever the pc stays slower...
One other thing I noticed is that when my AC adapter isn't plugged in the pc seems to go faster again (on balanced and high performance power setting) which completely makes no sense :/
My laptop is mainly connected using gigabit connection to the company network but I also make a wireless connection to reroute all the internet traffic through the wireless network.
Things I already checked/changed/tested:
- renew all adapters (either using ipconfig or by pulling out cable)
- Disabled bluetooth adapter during all the tests
- Updated the network adapter drivers to their latest version
- The routing table is identical before enabling / after re-disabling the wifi adapter
My system consists out (relevant items):
- Dell Latitude E6520 Running Windows 7 64 bit
- Wireless network card: Intel centrino advanced-n 6235 (driver v: 15.9.0.5)
- Wired network card: Intel(R) 82579LM Gigabit Network Connection (driver v: 12.6.45.0)
So if anyone can point me in the direction on what this could be caused by that would be a big help!
Testing results (all averaged from 3 trials):
Starting current developing app from visual studio
Before Wifi on: 4.4 sec
After Wifi on: 14.7 sec
Starting Windows Explorer
Before Wifi on: 0.4 sec
After Wifi on: 1.3 sec
Going to lockscreen
Before Wifi on: 0.4 sec
After Wifi on: 1.5 sec
Network connectivity before Wifi on:
After wifi was turned on:
Stormenet
Posted 2013-09-03T15:38:51.447
Reputation: 173
How can you be connected if WiFi was disabled?? – Ramhound – 2013-09-03T15:57:30.853
Forgot to mention, I connect using ethernet gigabit and wifi, updated my question. – Stormenet – 2013-09-03T16:37:25.713
Your wire connection would not result in a wireless connection to those devices. How many WiFi adpators do you have installed? A wired connection would NOT have a signal stregth. It sounds like you have hardware that is causing the problem, using an external adaptor, might solve your problem. I have seen nothing but problems with the Intel Centrino adapator in every device I have worked with one. – Ramhound – 2013-09-03T17:36:32.377
Those devices are other devices in the wired network and the test I am running is a tool form the Incredibuild build helper to test the connection speed to other build helpers in the network, it has nothing to do with the wireless connection ;) – Stormenet – 2013-09-04T06:46:22.927
Anyway, problem solved, see my answer. – Stormenet – 2013-09-04T07:47:28.843
Took me awhile to realize what the tool was doing. It is able to determine the signal strength by communicating with the access point ( gotcha ). – Ramhound – 2013-09-04T12:10:40.903