Can't mount samba-share but can connect via file explorer

TLDR: I can access an external harddrive via GUI tools but not via fstab / mount tooling. I'm at my wits end with this one. I've got an external harddrive plugged into the back of my Asus router, with samba share enabled. I can access the files on it from all of my devices, android, W10, Ubuntu, Mac. I can even access it on this device, again Ubuntu, accessing the files via Kodi and the file explorer. I've also been able to connect via the smbclient package. One oddity I did notice connecting via ubuntu's file explorer is the requirement for a domain in addition to the standard username and password. It wouldn't accept it blank so I just through an 'a' in there and it connected fine. However, I've burned a good few hours now attempting and failing to mount the drive for easier access and on-boot mounting. Unfortunately, of all the forum posts I've scraped, I'm seeing nothing new, no new tricks to try so I'm offering myself to the forum gods. I've edited the /etc/fstab file with the following, see image. They're all commented out but they have been uncommented one at a time and their are other permutations that I forgot to keep for the screenshot: From there I've been running sudo mount -a I've received many different errors while debugging, mostly #22, but now its settled on #13 Tailing the kernel log with tail -f /var/log/kern.log I see: 2025-02-22T17:38:13.145098-05:00 nous kernel: CIFS: VFS: Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old servers 2025-02-22T17:38:13.145100-05:00 nous kernel: CIFS: enabling forceuid mount option implicitly because uid= option is specified 2025-02-22T17:38:13.145101-05:00 nous kernel: CIFS: enabling forcegid mount option implicitly because gid= option is specified 2025-02-22T17:38:13.145102-05:00 nous kernel: CIFS: Attempting to mount //MY-ROUTERS-IP/photos 2025-02-22T17:38:13.168078-05:00 nous kernel: CIFS: VFS: cifs_mount failed w/return code = -13 Again, I can access the harddrive through the file explorer but can't mount it via the terminal. And for completeness a screenshot of the router's samba share settings: Two posts that seemed the most relevant to my ametueurish eyes: https://unix.stackexchange.com/questions/643411/cant-mount-samba-share-cifs-mount-failed-w-return-code-13 https://unix.stackexchange.com/questions/489647/cant-connect-to-smb-shared-storage-from-ubuntu-18-04