By Stevo on Friday, June 30, 2006 - 05:56 am:

hi,
i have several wireless devices running in the 2,4 ghz channel, a DECT telephone, bluetooth usb and mobile phone, wireless lan (802.11b router with 4 clients), a wireless remote for the pc and sometimes a wireless keyboard. i have not experienced any problems.

By Anonymous on Saturday, May 20, 2006 - 07:19 am:

I have the same problem, have you found a solution?

By Anonymous on Monday, March 13, 2006 - 07:10 am:

I have just bought a rumble pad two and cannot get it to connect at all. I've tried it on three PC's and have the same problems. I have even taken the laptop out in the car to make sure that its not my cordless phone causing the problem....still no connection....any ideas, short of taking it back for a replacement / refund ?

By Anonymous on Friday, January 14, 2005 - 10:50 pm:

MX700 uses 27MHz, not 2.4GHz, so of course your phone does not mess it up.
http://www.earthv.com/articles.asp?ArticleID=703&offset=180

By Karl on Friday, January 14, 2005 - 09:20 am:

That sounds about right. I have a cordless rumblepad and a 2.4GHz cordless telephone. Whenever the phone rings, my gamepad goes AWOL for something like 20-30 seconds. My Logitech Mx700 cordless optical mouse is unaffected.

By paul on Friday, July 16, 2004 - 05:11 pm:

Hi,

I work with Logitech and have some understanding of the technical aspects of this product.
I have no explanation for the problem you described with your original controller - provided there were no obvious problems such as dead or mis-inserted batteries, it could have been a hardware defect.

Regarding the more recent issue with the phone and wireless router, I can say that the Logitech product has been designed to withstand very high levels of interference from many different types of wireless device. However, as with any radio system, if you have more than one device sharing the same frequency band, it's just not possible to 100% eliminate interference issues. The severity of such an issue depends on a number fo factors such as the channels being used, the modulation type and the proximity of the systems. Fortunately, you do have control over some of these factors. You didn't mention how close the interfering devices were to each other when you experienced problems, but moving them further apart will always improve the situation. The fact that changing the phone channel doesn't help indicates that it's signal strength is so strong that it's effectively blocking all gamepad communications. Some of these phones are extremely powerful (2.4GHz is an unlicensed band in the U.S.). Increasing the distance between devices is, by far, the best solution in this situation. You can also try this with the router (and try changing its channel also)to see how much of an improvement you can obtain. The Logitech gamepad uses 'frequency hopping' to improve performance when other 2.4GHz devices are present. Different 'hopping' patterns allow the gamepad to avoid interference from certain device types. By pushing the button on the 'receiver' unit while the gamepad is connected, you can actually change the hopping pattern used - this is worth trying also.

Logitech just launched a new range of cordless controllers. These also work very well in the presence of interference, but it's impossible for me to predict how well they will perform in your specific situation.

I hope this helps

Regards

Paul

By Derby on Friday, July 16, 2004 - 02:07 am:

Main Issue:

I purchased a Cordless Rumblepad roughly six months ago, and replaced the unit once in its lifetime because of its inability to connect to the receiver. Both units worked well when no other 2.4 GHz devices were in use. The Cordless Rumblepad also worked fine around other Cordless Rumblepads.


The Cordless Rumblepad has had issues connecting with the following 2.4 GHz devices:

Motorola 2.4 GHz MA351 Cordless Phone - When this device is turned on while the gamepad is in use, the connection between the gamepad and the receiver becomes very latent and the signal is eventually lost completely. The gamepad will then be unable to connect to the receiver no matter what channel the 2.4 GHz phone is using.

D-Link 802.11b DI-514 Wireless Router used with an SMC 11Mbps (802.11b) 2.4 GHz PC Card Bus Adapter - In this case, when the gamepad is in use, the wireless adapter can no longer maintain a connection with the router. The gamepad remains connected, however.

In both cases, the loss of a connection between a wireless device and its receiver is the result of pushing any button on the gamepad and/or moving an analog stick. Using a button results in an almost instant disconnection between the device and the receiver. Using an analog stick will cause a gradual disconnection prompted by latency.

The cordless phone was also turned on while the wireless adapter was connected to the wireless router. As long as the gamepad remained unused, the wireless adapter was able to remain connected to the wireless router.


Additional Information:

The gamepad has had these interference issues when used on USB 1.0 and 2.0 ports. I have not tested this on USB 1.1.

Pressing the button on the receiver has no effect. The device continues to operate with these interference issues as soon as a connection is once again established.

Using aluminum foil on the other devices caused them to malfunction as long as the aluminum foil was in place. This was an unsuccessful attempt to increase the strength of the other connections.

There are no concrete walls here, and the 2.4 GHz traffic is limited to the three devices previously described.

No internal modifications have been made to the gamepad.

The gamepad also fails to operate in the presence of various other 2.4 GHz devices I have not identified. The gamepad has never functioned properly in the presence of a 2.4 GHz cordless phone connected to its receiver.

The gamepad functions the same way on all PCs I have tried.


I feel that I have exhausted all options that I am aware of. I have a few questions regarding these interference issues:

1. I have the gamepad, its receiver, and its updated software. Between the three of these, is there any way to resolve this interference issue? I have confirmed that the phone, the wireless card, and their receivers are not responsible for the interference because they operate on their own set channels. The channel-hopping technology in the gamepad is supposed to account for this.

2. Is this a common issue with this gamepad? If so, has it been resolved in any newer shipments of the same product?

3. Does anyone else here have a similar issue with this gamepad? Does anyone else here have no interference issues with this gamepad?

4. Is there a potential solution outside of the gamepad, receiver, and software?


I will purchase a Logitech Wingman Cordless Rumblepad 2 if it does not have the same interference issues as this particular unit. However, no information appears to be disclosed on this upcoming product, so I will not bother to ask about it. I have a feeling that my particular unit may be defective, but I want to know if there are any more options available before replacing my gamepad with a functional Cordless Rumblepad. I need it very much.

Thank you.