gvfs fails to mount previously working SMB share (from nautilus)

[DooMMasteR]

When accessing my SMB share (samba on linux/openwrt) Nautilus reports that the mount operation failed.
I enabled gvfsd debug and got the following debug output.

smb: g_vfs_backend_smb_init: default workgroup = 'NULL'
smb: Added new job source 0x55be028f8080 (GVfsBackendSmb)
smb: Queued new job 0x55be028f9960 (GVfsJobMount)
INFO: Current debug levels:
  all: 10
  tdb: 10
  printdrivers: 10
  lanman: 10
  smb: 10
  rpc_parse: 10
  rpc_srv: 10
  rpc_cli: 10
  passdb: 10
  sam: 10
  auth: 10
  winbind: 10
  vfs: 10
  idmap: 10
  quota: 10
  acls: 10
  locking: 10
  msdfs: 10
  dmapi: 10
  registry: 10
  scavenger: 10
  dns: 10
  ldb: 10
  tevent: 10
  auth_audit: 10
  auth_json_audit: 10
  kerberos: 10
  drs_repl: 10
  smb2: 10
  smb2_credits: 10
  dsdb_audit: 10
  dsdb_json_audit: 10
  dsdb_password_audit: 10
  dsdb_password_json_audit: 10
  dsdb_transaction_audit: 10
  dsdb_transaction_json_audit: 10
  dsdb_group_audit: 10
  dsdb_group_json_audit: 10
Using netbios name DOOMELITE.
Using workgroup WORKGROUP.
smb: do_mount - URI = smb://openwrt/doom
smb: do_mount - try #0
smbc_stat(smb://openwrt/doom)
smb: auth_callback - kerberos pass
smb: auth_callback - out: last_user = 'doommaster', last_domain = 'WORKGROUP'
SMBC_server: server_n=[openwrt] server=[openwrt]
 -> server_n=[openwrt] server=[openwrt]
Opening cache file at /run/samba/gencache.tdb
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permission denied
Opening /run/samba/gencache.tdb failed: Permission denied
sitename_fetch: No stored sitename for realm ''
internal_resolve_name: looking up openwrt#20 (sitename (null))
Opening cache file at /run/samba/gencache.tdb
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permission denied
Opening /run/samba/gencache.tdb failed: Permission denied
no entry for openwrt#20 found.
resolve_lmhosts: Attempting lmhosts lookup for name openwrt<0x20>
startlmhosts: Can't open lmhosts file /etc/samba/lmhosts. Error was No such file or directory
resolve_wins: WINS server resolution selected and no WINS servers listed.
resolve_hosts: Attempting host lookup for name openwrt<0x20>
resolve_hosts: getaddrinfo failed for name openwrt [Name or service not known]
name_resolve_bcast: Attempting broadcast lookup for name openwrt<0x20>
parse_nmb: packet id = 17529
nmb packet from 192.168.42.1(35072) header: id=17529 opcode=Query(0) response=Yes
    header: flags: bcast=No rec_avail=Yes rec_des=Yes trunc=No auth=Yes
    header: rcode=0 qdcount=0 ancount=1 nscount=0 arcount=0
    answers: nmb_name=OPENWRT<20> rr_type=32 rr_class=1 ttl=259200
    answers 0 char ....*. hex 0000C0A82A01
Got a positive name query response from 192.168.42.1 ( 192.168.42.1 )
remove_duplicate_addrs2: looking for duplicate address/port pairs
namecache_store: storing 1 address for openwrt#20: 192.168.42.1
Opening cache file at /run/samba/gencache.tdb
tdb(/run/samba/gencache.tdb): tdb_open_ex: could not open file /run/samba/gencache.tdb: Permission denied
Opening /run/samba/gencache.tdb failed: Permission denied
internal_resolve_name: returning 1 addresses: 192.168.42.1:0
Connecting to 192.168.42.1 at port 445
Socket options:
 SO_KEEPALIVE = 0
 SO_REUSEADDR = 0
 SO_BROADCAST = 0
 TCP_NODELAY = 1
 TCP_KEEPCNT = 9
 TCP_KEEPIDLE = 7200
 TCP_KEEPINTVL = 75
 IPTOS_LOWDELAY = 0
 IPTOS_THROUGHPUT = 0
 SO_REUSEPORT = 0
 SO_SNDBUF = 87040
 SO_RCVBUF = 131072
 SO_SNDLOWAT = 1
 SO_RCVLOWAT = 1
 SO_SNDTIMEO = 0
 SO_RCVTIMEO = 0
 TCP_QUICKACK = 1
 TCP_DEFER_ACCEPT = 0
map_errno_from_nt_status: 32 bit codes: code=c000020c
smb: do_mount - [smb://openwrt/doom; 0] res = -1, cancelled = 0, errno = [103] 'Software caused connection abort'
smb: do_mount - (errno != EPERM && errno != EACCES), cancelled = 0, breaking
smb: send_reply(0x55be028f9960), failed=1 (Failed to mount Windows share: Software caused connection abort)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[DooMMasteR (winrootkit-w)]

I wondered why I am still alone, this is a quite essential feature which makes me wonder if there is anything else that I can do to determine the issue in case it cannot be replicated.