SB680 Keeps dropping USB

[WAJS]

Hi All,

 

We have a 4 year old IWB (Smart SB690) and every now and then it drops off from USB

 

1) No Lamp on IWB -- Goes from green to off and obviously we loose interactivity

2) Checked drivers and they are up-to-date.

3) Uninstalled and installed the software and made sure up to date.

4) Used older version of software

 

Same issue throughout.

 

can anyone advise?

 

With thanks

John @ WAJS

[Steve21]

If you have one might want to try powered USB. We find a lot of older boards lose their ability to recognise what the device is over USB as the hardware ages/dies.

 

Steve

[L_Smith]

If the IWB is powered up there should be a light on, even if it isn't connected to the computer. I would investigate the power supply to the IWB

[Tirito]

It could be worth noting to check it is plugged into a USB 2.0 port and not a USB 3.0 port as I know that being plugged into a USB 3.0 can cause connectivity issues.

[WAJS]

It could be worth noting to check it is plugged into a USB 2.0 port and not a USB 3.0 port as I know that being plugged into a USB 3.0 can cause connectivity issues.

 

That's a thought ! I'll go over and look now!

[WAJS]

So,

 

Been over there and suddenly realised that this PC was moved from one room to another (Both with IWB) .

 

I have also changed the USB cable, this board for ref is powered via the USB.

 

Am I right to assume that the controller unit on the rear of the IWB is falling? The teacher just told me that she's had to unplug the USB lead 4 times today.

 

John

[Nibiru]

Its not something as simple as the usb ports being switched off by the operating system is it?

 

Ive had one or two erratic problems where the keyboards & mice were suddenly none responsive for no apparent reason Turning off the power management to the usb sub systems was the answer.

[crc-ict]

Not a smart board but we also had a problem with an interactive LCD screen that just simply would not work properly with a particular type of USB controller. Installed a PCIe card with a different chipset, and it worked fine??!

[WAJS]

Power settings have reduced the issue. We think the controller is failing. After speaking with several specialists it seems to be the case, Seems also to be common on the 660's and 680's as smart had three revisions of the controller on that series of boards.