External storage works only for a short time after reboot after updating to 18.0.1

Ubuntu 18.04
Nextcloud 18.0.1
NGINX
Shares on windows server 2019
LDAP backend configured

After updating to 18.0.1 my shares will randomly stop mounting in nextcloud. But I reboot ubuntu and everything works again…for a few hours.

The only errors that seem to relate in the log:

[no app in context] Error: Icewind\SMB\Exception\ForbiddenException: Invalid request for /admin (ForbiddenException) at <>

  1. /var/www/nextcloud/apps/files_external/3rdparty/icewind/smb/src/Native/NativeState.php line 62
    Icewind\SMB\Exception\Exception::fromMap({1: "Icewind\SM … "}, 1, “/admin”)
  2. /var/www/nextcloud/apps/files_external/3rdparty/icewind/smb/src/Native/NativeState.php line 74
    Icewind\SMB\Native\NativeState->handleError("/admin")
  3. /var/www/nextcloud/apps/files_external/3rdparty/icewind/smb/src/Native/NativeState.php line 184
    Icewind\SMB\Native\NativeState->testResult(false, “smb://files.vin … n”)
  4. /var/www/nextcloud/apps/files_external/3rdparty/icewind/smb/src/Native/NativeShare.php line 133
    Icewind\SMB\Native\NativeState->stat(“smb://files.vin … n”)
  5. /var/www/nextcloud/apps/files_external/3rdparty/icewind/smb/src/Native/NativeShare.php line 112
    Icewind\SMB\Native\NativeShare->getStat("/admin")
  6. /var/www/nextcloud/apps/files_external/lib/Lib/Storage/SMB.php line 179
    Icewind\SMB\Native\NativeShare->stat("/admin")
  7. /var/www/nextcloud/apps/files_external/lib/Lib/Storage/SMB.php line 297
    OCA\Files_External\Lib\Storage\SMB->getFileInfo("/admin")
  8. /var/www/nextcloud/lib/private/Files/Storage/Common.php line 456
    OCA\Files_External\Lib\Storage\SMB->stat("")
  9. /var/www/nextcloud/apps/files_external/lib/Lib/Storage/SMB.php line 613
    OC\Files\Storage\Common->test()
  10. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php line 472
    OCA\Files_External\Lib\Storage\SMB->test()
  11. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php line 472
    OC\Files\Storage\Wrapper\Wrapper->test()
  12. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Availability.php line 69
    OC\Files\Storage\Wrapper\Wrapper->test()
  13. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Availability.php line 83
    OC\Files\Storage\Wrapper\Availability->updateAvailability("*** sensitive parameters replaced ***")
  14. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Availability.php line 92
    OC\Files\Storage\Wrapper\Availability->isAvailable()
  15. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Availability.php line 441
    OC\Files\Storage\Wrapper\Availability->checkAvailability()
  16. /var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php line 582
    OC\Files\Storage\Wrapper\Availability->getMetaData("")
  17. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 113
    OC\Files\Storage\Wrapper\Wrapper->getMetaData("")
  18. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 151
    OC\Files\Cache\Scanner->getData("")
  19. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 337
    OC\Files\Cache\Scanner->scanFile("", 1, -1, null, true)
  20. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 516
    OC\Files\Cache\Scanner->scan("", true, 1)
  21. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 533
    OC\Files\Cache\Scanner->OC\Files\Cache{closure}("*** sensitive parameters replaced ***")
  22. /var/www/nextcloud/lib/private/Files/Cache/Scanner.php line 517
    OC\Files\Cache\Scanner->runBackgroundScanJob(Closure {}, “”)
  23. /var/www/nextcloud/lib/private/Files/Utils/Scanner.php line 186
    OC\Files\Cache\Scanner->backgroundScan()
  24. /var/www/nextcloud/apps/files/lib/BackgroundJob/ScanFiles.php line 83
    OC\Files\Utils\Scanner->backgroundScan("")
  25. /var/www/nextcloud/apps/files/lib/BackgroundJob/ScanFiles.php line 111
    OCA\Files\BackgroundJob\ScanFiles->runScanner(OC\User\User {})
  26. /var/www/nextcloud/lib/private/BackgroundJob/Job.php line 61
    OCA\Files\BackgroundJob\ScanFiles->run(null)
  27. /var/www/nextcloud/lib/private/BackgroundJob/TimedJob.php line 55
    OC\BackgroundJob\Job->execute(OC\BackgroundJob\JobList {}, OC\Log {})
  28. /var/www/nextcloud/cron.php line 125
    OC\BackgroundJob\TimedJob->execute(OC\BackgroundJob\JobList {}, OC\Log {})

at 2020-03-04T01:30:02+01:00