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The gateway is not available
My Latitude E6510 running on Win7 x64 keeps getting "The gateway is not available" periodically when using wireless. According to google search, it could be related to TCP offloading. But I cannot find this feature on both wired and wireless adapter properties from Device Manager. Under the netsh command, I found "Chimney Offload State" originally was set to automatic. I managed to disable it as shown below. Unfortunately, I still get the same error periodically. My Inspiron mini 1012 running on Win7 x32 and other computers running on XP are fine.
TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
Chimney Offload State : disabled
NetDMA State : enabled
Direct Cache Acess (DCA) : disabled
Receive Window Auto-Tuning Level : normal
Add-On Congestion Control Provider : none
ECN Capability : disabled
RFC 1323 Timestamps : disabled
All my drivers/software for wireless, ethernet, motherboard, video and everything are up to date. Thus it makes me think that this problem may not be related to offloading. I wonder if anyone was having the same problem. The wireless adapter of mine is Intel Centrino Ultimate-N 6300 AGN.
Any suggestion to fix it is appreciated. Thank you.
Thanks for the reply, Terry. I tried everything except one that I have no idea where and how I can set WIFI to CAM (Continuously Aware Mode) mode. The article by Intel at the link you provided (www.intel.com/.../cs-006205.htm) doesn't seem to apply to Windows 7 either. The Intel PROSet/Wireless Tools don't have this CAM option at all. Tried to play around with Power management but I don't see any difference. Reinstalling windows doesn't resolve this issue. The connection still drops randomly.
This issue is very annoying. I use E6510 very often and the sleep mode is disabled too because I want it to be awake all the time regardless of busy or idle.
Not sure if it is the product issue or Windows 7 x64 specific problem... It is very disappointing since I bought this E6510 and using Windows x64 with it.
DELL-Terry B
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Posted July 7th, 2011 17:00
Mcpunkin
It looks like you may have already installed the latest driver but just in case here is the link to the driver
<ADMIN NOTE: Broken link has been removed from this post by Dell>
Have you tried other wireless networks and if so does it appear to be specific networks that the notebook has more problems connecting then others?
If the problem happens often enough I suggest testing in safemode with networking. Boot the system while tapping F8 and select safemode with networking. If the system is stable in safemode with networking it implies that it could be software that is interfering with the connection.
You may also wish to go into device manager and bring up the properties of the wireless driver. Click on the power management tab and make sure that "Allow the computer to disable the device to save battery power" is not checked.
It could be an issue with Intel PSP.
www.intel.com/.../cs-006205.htm
Use Intel® PROSet/Wireless WiFi Connection Utility to Set CAM
Click Advanced > Adapter Settings > Advanced tab.
Select Power Management and uncheck Default / Auto and move the slider to Highest / Maximum Performance.
If the slider is already at Highest / Maximum Performance, move the slider to another setting and then back to Highest / Maximum Performance.
Other than that I can only suggest reinstalling windows or having the wireless adapter replaced.
TB