So, I've got a Huawei e1831 (with videotron) and I consistently get diconnected if I'm inactive.
I've seen some DC after ONLY 20sec of inactivity (multiple times!!). But most of the time it takes between 5 to 15 mins before I get a DC (record time was around 1 hour maybe 1.5 hour)
When I get a disconnect I hear the usb sound telling me that a device has been unhooked and 2-3 sec later the usb sound for a plugged in device is played and the connection manager will reconnect me.
At 1st I tough it was a usb power problem so I've set my power plan to never shutdown any usb device (to save power) and in the device manager I've found 9 entry for the huawei dongle and of those 9 there was 6 of them with "allow the computer to turn off this device to save power" and unchecked those 6 boxes. It didnt changed anything and I would still get DC'ed for inactivity. I also created a new power plan, just in case, but it did not helped.
Their tech support is useless, they made me exchange the usb dongle 2 times already with no success and they claim they have never heard of anyone having this problem but me. They also claim that it has nothing to do with videotron disconnecting me, they say they do not disconnect people for inactivity
Now I say I get DC'ed for inactivity because when I run ReloadEvery (a firefox addon that let you refresh any web page after a given time) on google.com (or another website) every 10 sec and I will not get disconnected (I've been doing this for about 4-5 days) and I was able to keep my connection active for 7h+ doing this each times. I tried to increase the refresh timer to 20 sec but I'd get the occasional DC and same thing at 15s but so far not one DC when set at 10s.
I've also tried to just ping a website but it is not enough to keep my connection active (even every 5 sec)
I've ordered a 3g antenna thats compatible with my huawei dongle but their tech claims that should not be the problem since I usually have a signal of 3 bars.
I use the dongle with a usb extension cable (to get better signal) but I get dc'ed just as much without the extension.
Another weird thing is that when I try to see my bandwidth usage with a connection from the usb dongle at the videotron website I get timed out about 9 times out of 10 (it either work on 1st try or not at all no matter how many times I try to refresh the page) but when from my home connection it works every time. Again their tech had no idea how to resolve this (not that I care much about it but it is weird)
The network in my area support up to 42mbps but the e1831 dongle only support up to 21mbps. When I run a speed test I get between 10 and 13 mbps down and ~2.5mbps up and ping are great and generally under 75ms, often in the ~45ms range (with 3 bars).
Any idea what could cause this and how I could fix it ?
thx for any input guys !!
edit: using an Alienware M17x R2 with i7 620m, 4g 1066 ddr3 ram and 2 ati hd4870 in crossfire