[random_usb_user]

Hey folks, been trying to solve this for the past 3 days with no luck.
It is a 3d printer that came with this wifi usb stick. At one point I accidentally took it off and since then it is no longer switching to wifi mode but only on that specific port!

When I try to switch it manually -

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root@mkspi:~# usb_modeswitch -K -v a69c -p 5721 -W
Take all parameters from the command line


 * usb_modeswitch: handle USB devices with multiple modes
 * Version 2.5.2 (C) Josua Dietze 2017
 * Based on libusb1/libusbx

 ! PLEASE REPORT NEW CONFIGURATIONS !

DefaultVendor=  0xa69c
DefaultProduct= 0x5721

StandardEject=1

Look for default devices ...
  found USB ID 1d6b:0003
  found USB ID a69c:5721
   vendor ID matched
   product ID matched
  found USB ID 1d6b:0002
  found USB ID 1d6b:0001
  found USB ID 1a40:0101
  found USB ID 1d6b:0002
  found USB ID 1d50:614e
  found USB ID 1d6b:0002
 Found devices in default mode (1)
Access device 003 on bus 004
Get the current device configuration ...
Current configuration number is 1
Use interface number 0
 with class 8
Use endpoints 0x02 (out) and 0x82 (in)

USB description data (for identification)
-------------------------
Manufacturer: aicsemi
     Product: Aic MSC
  Serial No.: 20200203
-------------------------
Sending standard EJECT sequence
Looking for active drivers ...
Set up interface 0
Use endpoint 0x02 for message sending ...
Trying to send message 1 to endpoint 0x02 ...
 Sending the message returned error -7. Try to continue
Read the response to message 1 (CSW) ...
 Response reading failed (error -7)
 Device is gone, skip any further commands
-> Run lsusb to note any changes. Bye!

When it is plugged in the working port (it switches automatically a few seconds after boot)

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root@mkspi:~# lsusb
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 004: ID 1bcf:0b09 Sunplus Innovation Technology Inc. 
Bus 002 Device 005: ID 2604:0013  
Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 1d50:614e OpenMoko, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

On the non working port

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root@mkspi:~# lsusb
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 003: ID a69c:5721  
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 1bcf:0b09 Sunplus Innovation Technology Inc. 
Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 1d50:614e OpenMoko, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[Earl Walter]

Have you checked to see if there are any updates for your printer and USB?

solar smash

[OliviaParker]

Have you checked to see if there are any updates for your printer and USB?

Smash Karts

I've checked and it's the latest update but the error still occurs.

[xafeg14199]

Have you checked to see if there are any updates for your printer and USB?

pink palm puff

I've checked and it's the latest update but the error still occurs.

Completely power off the 3D printer, unplug it for a few minutes, and then turn it back on. This can sometimes reset the USB ports and resolve issues.

[Fepink55]

Have you checked to see if there are any updates for your printer and USB?

bitlife

I've been having trouble with my Tenda AIC8800DC switch. One of the ports is not powering on, even after I've tried resetting the switch, checking the cables, and updating the firmware. The other ports are working fine. I've connected a laptop to the faulty port, but there's no link light.

[NurseJackass]

I have a COMFAST usb dongle with an aic8800. I could switch it from the command line, but the automatic run from dev rules wasn't switching. I was eventually able to get it to switch by adding "WaitBefore=1" to the config file, like:

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$ cat /etc/usb_modeswitch.d/a69c\:5721
# COMFAST aic8800 
TargetVendor=0xa69c
TargetProduct=0x8d81
StandardEject=1
WaitBefore=1