Unsolved
1 Rookie
•
1 Message
0
49
January 14th, 2026 18:27
Laptop keeps shutting down
When I’m working away from the office (home Wi‑Fi or SIM/mobile data), the laptop will suddenly restart — sometimes up to 10 times in an hour. It happens whether I’m:
- on Wi‑Fi or SIM
- using the Dell D6000 dock or not
- on battery or AC power
- using VPN or not
The unusual part is that the laptop is completely stable in the office, so the problem seems to be related to how the device behaves under the “off‑network” profile.
Also occasionally get this error code on a black screen
SYNTHETIC_WATCHDOG_TIMEOUT (0x1CA)
- Model: Dell Latitude 7450
- BIOS: 1.18.1 (14/11/2025)
0 events found
No Events found!
ejn63
10 Elder
•
30.8K Posts
0
January 14th, 2026 22:33
Under settings/system/recovery/advanced, disable the automatic restart on error -- that should allow a crash file to be written so you can pinpoint the exact cause of the crash.
GauravSyst
2 Intern
•
315 Posts
0
January 15th, 2026 07:41
Well Fix Wi-Fi power state crashes:
Device Manager → Network adapters
Right click Intel Wi-Fi AX211 → Properties
Power Management tab:
❌ Uncheck Allow the computer to turn off this device to save power
Advanced tab:
Set MIMO Power Save Mode → No SMPS
Set Transmit Power → Highest
Set U-APSD support → Disabled
anne_droid
5 Practitioner
•
1.5K Posts
0
January 15th, 2026 11:48
Hi
I had a thought........
Perhaps the LEASE time is very short in the AWAY from office config file.
#######
ipconfig /allFind your Wi‑Fi adapter section (likely “Wireless LAN adapter Wi‑Fi”).
Look for the lines: Lease Obtained - Lease Expires
DHCP4.OPTION[3]: dhcp_lease_time = 4294967295
That is more than 136 years for me.
When the lease time expires a new connection and possible IP address is needed.