Remote Tunnel Access keeps failing

### Description

Every 24 hours or so, the remote tunnel service fails, so I have to log in to the VM manually and restart VSCode to bring the server up again. Can we make it more rebust please?

### Issue Details

Item|Value
---|---
Issue Category|Bug
Target|Visual Studio Code - Insiders
VS Code Version|Code - Insiders 1.136.0-insider (a29f231dfa3b4a0a2d0d433bbc6a6171eca52d0f, 2026-08-26T20:07:07-07:00)
OS Version|Windows_NT x64 10.0.26200

System Info

Item|Value
---|---
VS Code Version|Code - Insiders 1.136.0-insider (a29f231dfa3b4a0a2d0d433bbc6a6171eca52d0f, 2026-08-26T20:07:07-07:00)
OS Version|Windows_NT x64 10.0.26200
CPUs|AMD EPYC 74F3 24-Core Processor (12 x 3194)
GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x2236 [NVIDIA A10-8Q], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.9597 *ACTIVE*
GPU1: VENDOR= 0x10de, DEVICE=0x2236 [NVIDIA A10-8Q], DRIVER_VERSION=32.0.15.9597
GPU2: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
GPU3: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off
Load (avg)|
Memory (System)|109.95GB (89.24GB free)
Process Argv|--crash-reporter-id e90a878b-6e87-40eb-9eae-1fd7af3c3970
Screen Reader|no
VM|0%
User Agent|Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Code-Insiders/1.136.0-insider Chrome/148.0.7778.280 Electron/42.8.1 Safari/537.36
Installation pure|true

Extensions (6)

Name|Identifier|Author|Version
---|---|---|---
TestMate C++|matepek.vscode-catch2-test-adapter|matepek|4.26.0
Agency|microsoft.agency|Microsoft|1.0.260515001
CMake Tools|ms-vscode.cmake-tools|ms-vscode|1.24.34
C/C++|ms-vscode.cpptools|ms-vscode|1.34.0
Remote Explorer|ms-vscode.remote-explorer|ms-vscode|0.5.0
Remote - Tunnels|ms-vscode.remote-server|ms-vscode|1.5.3

Theme extensions: 9

A/B Experiments

```
vsliv368cf:30146710
pythonvspyt551cf:31249598
nativeloc1:31118317
dwcopilot:31158714
dwoutputs:31242946
copilot_t_ci:31333650
g012b348:31231168
pythonrdcb7:31268811
pythonpcpt1cf:31399617
6518g693:31302842
82j33506:31327384
envsactivate1:31349248
editstats-enabled:31346256
cloudbuttont:31366566
3efgi100_wstrepl:31403338
bj468946:31457056
diffpatch-lysithea-0014-prod-ctrl:31574142
metis_rerank_treatment1:31411021
cp_cls_t_966_ss:31526232
4je02754:31455664
8hhj4413:31478653
ge8j1254_inline_auto_hint_haiku:31490507
cp_cls_t_1081:31454832
conptydll_true:31485575
e9c30283:31453065
c9b86496:31447327
capico_a_098a3278:31555650
ei9d7968:31462942
nes-extended-on:31455475
de16b994:31458079
89g7j272:31506658
hhf17803:31462392
i2gc6536:31472020
52612955:31508042
h08i8180_copy:31475366
ddid_t:31478204
hmra_i5g22:-9
bjc72774_agent_sandbox:31538428
7df3h592:31491241
cp_cls_t_1082:31535311
logging_enabled_new:31490725
jb_cp_cls_t_632:31543129
b1g4i769:31503653
ha629193:31508444
a1ije391_t:31533808
jbcp_cls_pctr_t:31531130
3f904173:31522231
cp_intellij_t_nes:31548657
jf4hg949:31526829
hide-eh-duplicates:31543293
replace-eh-with-ah:31545853
ihg5j128:31534457
f412h606:31543414
enable_editor_pane_layout:31551200
52258b4d:31547953
36h42362:31560305
c7c27ce7:31551212
voicemodeon:31566386
6577i413_copy:31558653
1h923230:31564177
0dg73464:31554309
gpt56sol_default:31557178
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0c1h4866:31562347
vrbsty_fls:31561057
plus-and-new:31566205
5b8j3302:31564600
autotiers:31569067
mangle-name-treatment:31568054
allow-signed-out:31566873
codex-agent-enabled:31566739
77cef475:31568526
lunaclean:31570525
64a8d082:31573709
permission_prompt_treatment:1294978
ccr_pr_nudge_adoption:1319471
vsc_wsm_c:1324224
eh853263:1355661
8dd11969:1352703
```

### Attachments


No source files, tests, or entry points are named. Start by reproducing the reported Remote - Tunnels failure after roughly 24 hours on the listed Windows and VS Code Insiders versions, then identify the relevant failure logs and define success as restoring the tunnel without manually restarting VS Code.

Written by the indexing model from the issue text.