many occurrences of:
[7HNC5] 2022/08/20 17:03:00 INFO: Access the GUI via the following URL: http://[redacted]:8384/
[7HNC5] 2022/08/20 17:03:00 WARNING: GUI/API: accept tcp [redacted]:8384: accept: function not implemented (restarting)
running on ARM v5 Marvel 88f6281
INFO: syncthing v1.20.4 "Fermium Flea" (go1.18.4 linux-arm) teamcity@build.syncthing.net 2022-08-02 08:10:29 UTC
found the issue:
opened 10:26PM - 04 May 22 UTC
closed 08:31PM - 05 May 22 UTC
bug
needs-triage
**Environment**
Syncthing v1.20.1 running on Synology DSM 6.2 using the `syncth… ing-linux-arm-v1.20.1.tar.gz` release
**Issue**
Syncthing is failing to accept any new connections on either the GUI/API port or the QUIC listener port after upgrading from 1.19.2 to 1.20.1
Here's my log file
```
[start] 2022/05/04 18:15:17 INFO: syncthing v1.20.1 "Fermium Flea" (go1.18.1 linux-arm) teamcity@build.syncthing.net 2022-05-04 16:17:03 UTC
[6NNOL] 2022/05/04 18:15:18 INFO: My ID: XXXXX
[6NNOL] 2022/05/04 18:15:19 INFO: Single thread SHA256 performance is 9.3 MB/s using minio/sha256-simd (9.2 MB/s using crypto/sha256).
[6NNOL] 2022/05/04 18:15:20 INFO: Hashing performance is 8.55 MB/s
[6NNOL] 2022/05/04 18:15:20 INFO: Detected upgrade from v1.19.2 to v1.20.1
[6NNOL] 2022/05/04 18:15:20 INFO: Overall send rate is unlimited, receive rate is unlimited
[6NNOL] 2022/05/04 18:15:20 INFO: Ready to synchronize "/etc/pve" (5ujtg-5xcfw) (receiveonly)
[6NNOL] 2022/05/04 18:15:20 INFO: TCP listener ([::]:22000) starting
[6NNOL] 2022/05/04 18:15:20 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
2022/05/04 18:15:20 failed to sufficiently increase receive buffer size (was: 112 kiB, wanted: 2048 kiB, got: 224 kiB). See https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size for details.
[6NNOL] 2022/05/04 18:15:20 INFO: QUIC listener ([::]:22000) starting
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: My name is "synology-disk-station-ds209"
[6NNOL] 2022/05/04 18:15:20 INFO: Device C45CR23-DCBR2FO-ZKKBJPX-IXO5X64-TBL5P3X-QKEI3QG-IMBYISB-VSXOHAY is "XXX" at [tcp://XXX:22000]
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: GUI and API listening on [::]:8384
[6NNOL] 2022/05/04 18:15:20 INFO: Access the GUI via the following URL: https://127.0.0.1:8384/
[6NNOL] 2022/05/04 18:15:20 WARNING: GUI/API: accept tcp [::]:8384: accept: function not implemented (restarting)
[6NNOL] 2022/05/04 18:15:20 INFO: Completed initial scan of receiveonly folder "/etc/pve" (5ujtg-5xcfw)
[6NNOL] 2022/05/04 18:15:21 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
[6NNOL] 2022/05/04 18:15:23 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
[6NNOL] 2022/05/04 18:15:26 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
[6NNOL] 2022/05/04 18:15:30 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
[6NNOL] 2022/05/04 18:15:35 WARNING: Listen (BEP/tcp): Accepting connection: accept tcp [::]:22000: accept: function not implemented
```
**Workaround**
I've reverted back to v1.19.2
my old non-upgradable box does not have updated dependencies. i must “Pin” syncthing v1.19.2
system
September 19, 2022, 5:40pm
3
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