Device Disassociation (Unpairing) Failed. 3502 + Windows Search Indexer (Slow for the indexer to activate)


MysteriousBox

What's in the box?
Local time
3:02 AM
Posts
21
OS
Windows 11 25H2
Issue 1
(KB5101650) (26200.8875)
Update (KB5121767) (26200.8894)

Since the above updates, my event viewer throws the following Error ;

Device Disassociation (Unpairing) Failed. 3502
[td]AepId[/td] [td]EsclUsb#{aea69b2f-e9ff-593a-aaa6-26b294dbe06c}[/td]
[td]ClientProcessName[/td]
[td]C:\Windows\System32\spoolsv.exe[/td]
[td]ClientPid[/td]
[td]4912[/td]
[td]AssociationError[/td]
[td]0[/td]
[td]ProtocolError[/td]
[td]2154037265[/td]

Does anyone know what this is?

Issue 2
Since the above update(s), the Windows Search Indexer (Service) takes significantly longer than normal to start. If I turn on the PC, it takes up to 2 full minutes for WSearch to go from Stopped to Running. This is abnormal as prior to these updates, the indexer would run almost immediately.
 
Last edited:

My Computer My Computer

At a glance

Windows 11 25H2i7 12700k64GB DDR5
OS
Windows 11 25H2
Computer type
PC/Desktop
Manufacturer/Model
DIY
CPU
i7 12700k
Memory
64GB DDR5
Browser
Chrome, Firefox
Issue 1
(KB5101650) (26200.8875)
Update (KB5121767) (26200.8894)

Since the above updates, my event viewer throws the following Error ;

Device Disassociation (Unpairing) Failed. 3502
[td]AepId[/td] [td]EsclUsb#{aea69b2f-e9ff-593a-aaa6-26b294dbe06c}[/td]
[td]ClientProcessName[/td]
[td]C:\Windows\System32\spoolsv.exe[/td]
[td]ClientPid[/td]
[td]4912[/td]
[td]AssociationError[/td]
[td]0[/td]
[td]ProtocolError[/td]
[td]2154037265[/td]

Does anyone know what this is?

Issue 2
Since the above update(s), the Windows Search Indexer (Service) takes significantly longer than normal to start. If I turn on the PC, it takes up to 2 full minutes for WSearch to go from Stopped to Running. This is abnormal as prior to these updates, the indexer would run almost immediately.
It looks like your system is trying to pair or unpair with a printer, then failing with a time out. Do you have a printer or scanner connected? If so, try disconnecting them and seeing if that resolves the boot issue.
 

My Computer My Computer

At a glance

Windows 11 25H2Broadwell-e 6850K 4.5ghz @1.36v32GB Corsair LPM 3600 C16EVGA RTX 3080Ti FTW
OS
Windows 11 25H2
Computer type
PC/Desktop
Manufacturer/Model
EVGA home brew
CPU
Broadwell-e 6850K 4.5ghz @1.36v
Motherboard
EVGA X99 FTW K
Memory
32GB Corsair LPM 3600 C16
Graphics Card(s)
EVGA RTX 3080Ti FTW
Sound Card
Asus Centurion true 7.1 headset. (5 speakers in each earpeice)
Monitor(s) Displays
LG C4 55"
Screen Resolution
4K 144hz
Hard Drives
Various models of SSDs ~10TB No HDDs installed.
PSU
be quiet! BN516 Straight Power 12-1000w 80 Plus Platinum
Case
Corsair 780T modified to dual 200mm intake fans
Cooling
Corsair H110i
Keyboard
Corsair K95 Platinum
Mouse
Corsair M65 RGB Elite
Internet Speed
50Mbs
It looks like your system is trying to pair or unpair with a printer, then failing with a time out. Do you have a printer or scanner connected? If so, try disconnecting them and seeing if that resolves the boot issue.

I have a very old printer that is connected by a USB, it has no wifi capability at the moment. Even unplugging it, this error persists.
 

My Computer My Computer

At a glance

Windows 11 25H2i7 12700k64GB DDR5
OS
Windows 11 25H2
Computer type
PC/Desktop
Manufacturer/Model
DIY
CPU
i7 12700k
Memory
64GB DDR5
Browser
Chrome, Firefox
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