I don't know what's going on with my USB ports, but it's driving me crazy..
At first I thought it was my Ipod, because I'd keep getting random "could not read from disc" messages while putting songs on there..
Then my USB mouse starts cutting in and out.. No pattern.. one second it's fine, the next it's out (it's a Microsoft Intellimouse 3.0)..
It's driving me crazy!! It seems I can get it to work for a while once it cuts out for good and I get a "USB device not recognised" message on my tray by unplugging it and plugging it back in to the same or a different port (doesn't seem to make a difference which)..
It's taken about 30 plugs and unplugs to get to THIS point (re-registering with this forum, getting to this section, etc)..
I've done everything I, with my very limited troubleshooting ability, can think of..
I've run check disk.. Nothing.. Adaware and Spybot.. Nothing..
I don't think it's a virus, though, as I have an external router and Norton's antivirus
When I check the device manager the exclamation point appears over the mouse when it flickers in and out, but of course I can't click on it, because my mouse doesn't work..
I flashed my BIOS, which seemed to go without a hitch..
Is this a problem with my USB root manager (all ports, front and back, are affected, not just one)?
Or my motherboard?
Please, please please, if you have any ideas to share before I spend $60 an hour on a computer tech share them with me!!!
1) Check to make sure your cables arent dodgy. My mouse doesnt always respond... as you say it 'cuts in and out'... but thats because the cable is naff and I need a new mouse. All my charger equipment works.
2) I assume you have more than one USB port, and have tried them all? If so, there could be a driver problem or something. Goto task manager, and remove from the hardware manager. Reboot XP (assuming you have XP) and it should re-recognise it and reinstall the default drivers. Then do a windows update. Or do a windows update first.
3) Recently installed hardware or software may cause a conflict somewhere down the line. Installed much recently?
4) If all else fails, or the ports themselves are dud, you may need to get a USB2 card. I have one - got four extra ports, less than a tenner. I messed up some other ones when I stood on the cables, whilst plugged in, whilst my comp was on the floor, where my USB ports are a few mm off the ground anyway :S .
I'm sure someone else might be able to think of what it may be.
In the bios of most computers there is a setting for boosting the power level. Some of the older boards have a jumper setting on the motherboard. Might try boosing the power to the device if it an option.
Don't mix 1.1 and 2.0 devices on the same controller, that impacts the 2.0 devices.
how many devices do you have plugged in at one time?
If you have a lot of stuff pulling power from the usb that could cause devices to go in and out.
I had the same thing on my old computer. Once I got a 2.0 card, mb was 1.0 or 1.1 whatever, I havent had my mouse drop out at all. Still run stuff off the old one just not the mouse.