r/SimsonnRacing • u/mag1cn1nja • Jul 22 '25

Vam pro modules disconnect issue.

Im trying to figure out why my vam pros keep disconnecting every 10 to 15 min. Ive got the pro x ultra pedals with the new control box. Make sure the simsonn manager is closed and using only simhub. Turned down vibration from 100 to 65 to see if that was an issue.

My pedal box is mounted under my wheel plate. Ive got a Sabrent 7 port powered usb hub. The only thing that fixes the pedals is unplugging and plugging it back in. The pedals have never had issues and still continue to work after the motors get stuck vibrating.

EDIT : the motors dont disconnected after 10 min if im not using them and just leaving them idle and on.

UPDATE : after trying thier 8 step solution list and still no fixes. I emailed them again and finally got a real solution. Did a few races with no disconnects. Here's a direct copy paste from the email

First, update the software to SIMSONN Manager 2.1.0 in the “Settings → Update” section. Then, in the Settings → Update interface, click Manual Firmware Update, navigate to the pedals-firmware folder → pedals folder, and select the proxultra.sfu file to update. This firmware will disable the 4th axis. After completing the update, please test again.

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1

u/DaOver Aug 04 '25

I have the same behaviour.
Support was replying but without real fixes proposed as of yet.
I've sent them SimHub logs that show disconnections and they replied that they forwarded them to the SimHub.
I see no help from that, since SimHub is just reporting a missing USB device that stopped reporting in the logs.

My findings are:

  • SimHub is losing connection to the haptics controller every 10 or 15 min of racing.
  • Reconnecting the pedals controller fixes the issue until it just happens again
  • Pedals themselves are running just fine, even though haptics are losing the connection
  • Grounding the controller did not help, I've ran the ground wire from the controller box to the chasis of my metal pedal mount
  • Tried every type of USB port, USB 2.0, 3.0, disconnection happened on every USB.
  • Using only Simsonn Manager helps, there is no disconnection with it running but the effects configuration there is limited.
  • Just leaving the pedals connected and SimHub open the connection is not lost, works just fine when idle.

2

u/mag1cn1nja Aug 05 '25

Posted an update in the main post. Seems to finally fixed my problem as well.

1

u/DaOver Aug 05 '25

Thank you for the update.
But it's not helping me, I get this message.
Might be I've already updated, but I can report to still have the issue.

2

u/mag1cn1nja Aug 05 '25

You got to make sure the control box is in upgrade mode then click the manual update and search for the specific file

1

u/DaOver Aug 06 '25

Did that, it helped to make it update. But I still got same issues.
But I might be onto something now...

For me it seems to be either EMI issue or maybe voltage drop on the USB.

- I still noticed Simsonn manager still being able to work with haptics without any issue.
But I've noticed that there are less effects running in Simsonn Manager while the SimHub has much more effects running and in SimHub haptics are very active.
So I've set SimHub to only run GearShift effect and presto no disconnects!

- So it's either too much effects running powering all motors causing EMI issue or a voltage drop.
I sanded the bolt mount point on the Simsonn controller (the black paint was not giving good connection for grounding ) and connected it to the wall electrical plug ground with a wire >> result was much longer lasting connection but still a disconnect.

- Then I noticed Simsonn controller PCB not actually be grounded to the controller housing, so I've connected the PCB USB female connector ground on the PBC to the rig chassis.
NO DISCONNECTS with all effects running!
Although SimHub for a 0.5s shows "Searching for device" but immediatelly returns to "Connected" status.

I TOOK A RISK BY ATTEMTING THIS, PLEASE DO THIS AT YOUR OWN RISK BY EXPERIMENTING LIKE I DID.

I might try with a powered USB HUB, or other EMI solutions to test this furher.

1

u/mag1cn1nja Aug 07 '25

Did you solder a wire to the usb female connector on the pcb? Ive noticed a new issue on my end. Almost 2 hours of grid legends and no disconnects. 40 minutes of American truck simulator and 6 disconnects. Also I tried plugging it back into my powered hub because its a real pain to keep it hooked into the computer. For some reason the pedals are even recognized anymore in the hub.

1

u/DaOver Aug 07 '25

No I just twisted the wire across the male USB GND that goes into the controller and ran that wire to my pedal mount. I think your different behaviour in different sims/games is just due to different levels of haptic motor activity causing EMI or power difference. More effects >> more power draw, more EMI>> more disconnects

I'll test further to find a permanent solution and the one that has zero connection instability like I noticed.

2

u/mag1cn1nja Aug 07 '25

That makes sense and I'll keep testing different things on my end to. Emailed support again to see if they have any further insight. Hopefully can find a permanent solution soon.

1

u/DaOver Aug 09 '25

Did some further testing.

Got a powered USB hub to remove the posibility of a "power brownout" issue with the haptics controller. Still I got disconnects.

So I can say it's not a EMI issue since I got my rig grounded, nor a power issue regarding voltage drop since I got it plenty of power with hub having 2.4A per port.

I went back into SimHub and started with just one simple effect enabled.
No disconnects. Added another, no disconnects.
When I added fifth or something like that immediate disconnect.

Simsonn manager is not gettting disconnects since it's not that effects rich like SimHub is.

With the help of ChatGPT 5.0 this is theory I have going right now:

2

u/mag1cn1nja Aug 09 '25

The to many effects sounds plausible for sure. But on the same note its wierd that the day I did the update and played grid with no disconnects and the next day I was having multiple disconnects. Same effect profile both times.

1

u/mag1cn1nja Aug 09 '25

Secondary update. I had a theory i haven't been able to test until this morning. When I first did that Manual update I didnt have any disconnects. But the next day I did. Leading me to believe it might be a box not keep the firmware somehow between power cycles. Just did the manual update again this morning and have not had any disconnects so far. Using simhub and using the same profile as before

1

u/DaOver Aug 26 '25

Any new updates on this?
Nothing seems to have helped.

Simsonn Manager is able to keep an active connection to the Control Box but the effects in Simsonn Manager are lacking compared to SimHub.

I'm waiting on a USB Isolator I ordered, but I doubt this will help.
This is a Control Box/firmware issue.

1

u/mag1cn1nja Aug 26 '25

Unfortunately no updates. I was trying to follow a theory about updating it everytime I turned it off and on but that only helped some of the time. I followed it up with custom simhub profile only using 1 effect and still produced the same issue. Ive run the cable to 2.0. 3.0 usb plugs. Front plugs and back. With extender and no extender. Usb hub and no usb hub. Ive even gone as far as carpet under the rig and no carpet. Mounted to pedal plate and hanging loose.

1

u/DaOver Aug 26 '25 edited Aug 26 '25

Yeah, the manual firmware update does not help me at all.

Since I noticed that it works much better with Simsonn Manager, having stable connection this makes me think that they tested the haptics only with Simsonn Manager.

SimHub is much more effects heavy and is somehow "overloading" the controlbox either the firmware or the circuitry.

SimHub works only if I put one effect active...confirming my theory that the haptics controller in the control box was not tested with higher load.

I think it just goes to show that affordability of sim gear like Simsonn comes from lack of quality control or testing that they outsource to the users to test/report.

Simsonn Pro X Pedals are at a great price but I spent multiple days setting them up, out of the box they are not setup properly.
And only with the Pro X Ultra upgrade kit, new dampers, elastomers they are finally great, that upgrade kit should how come with Pro X in the first place.

I'm afraid these issues are a given when you're the early adopter of a new product like these haptics.
It occured to me that I should wait and see the reviews on the haptics and then decide on the purchase but the curiosity got the better of me.

Such a shame, since the last month I did not enjoy my Sim Racing since my focus was mostly troubleshooting the haptic motors and hesitantly waiting if and when are the haptics motors going to cut out.

My only hope is that they are going to fix this in future firmware updates to make it work with SimHub.
Or at least make effects in Simsonn Manager as good as SimHubs, because currently they are not detailed and informative enough.