Smb super slow A prime example of this is copying files over SMB - listings take minutes, and copying even modestly Feb 1, 2025 · I’m experiencing slow SMB read speed from Windows 11 client with TrueNAS SCALE 24. Never found a good explanation for the NFS/SSH performance. So what causes slow file transfer speed is definetly encryption. Assuming network connectivity is not a problem, has anyone experienced incredible slowness with SMB? Are there alternative protocols for me to use in this case between PC and MAC? On two separate Windows systems went from highly inconsistent and slow performance over a 1GbE network over SMB to much closer to line speed and very consistent throughput. 5gb ethernet. Oct 5, 2022 · Hi, If you are experiencing slow access to a network share on a Windows client device, you can try disabling the SMB metadata caching on the client side or in the shared folder settings. Your /etc/nsmb. On W11 the throughput was ways slower: I only got ~300 Mbit/sec when copying to/from the Samba Share. If the issue persists, try the methods in this article. I sync about 13TB of data over SMB. Nov 3, 2023 · When I connect to the NAS by going to Finder> Connect to Server> smb:// [IP address of my NAS] the transfer speed is super slow through finder. When trying to stream a HD video from the share with Kodi or a Macbook, the video stutters heavily. SMB 2 and 3 use pipelining technologies to speed up file transfers, but SMB 1 is a lot more linear in how it reads and writes files. Mar 30, 2020 · Our company recently transferred to fully online from in office due to the current crisis. The setup is a esxi all in one Feb 10, 2021 · I've been trying to find a solution to this problem since I've started using UNRAID, I've tried transferring files to and from the server from my drives, my cache, etc. reading time: 1 minute I ran the two regedit commands and rebooted, and now went from 24MB/s, up to 105MB/s! Nov 20, 2024 · Hello everyone, just finished building my truenas scale server, for some reason the smb transfer speed is super low, only getting around 20mb/s. Both windows 11 machines have no problem getting good speeds to SMB/CIFS/NFS Shares are extremely slow to access from Linux I have a file/media server running OpenMediaVault, with a few shared folders which I manage from my desktop. My Problem: I have slow transfer speeds (read: 50MB/s, write: 20MB/s) with all 3 of my Windows 11 computers ↔ TrueNAS (latest Version) I have a two Win10 computers which have “great” speeds (read/write: >100MB/s between those and TrueNAS). We don't Oct 17, 2024 · Users who installed Windows 11 24H2 complain that they experienced extremely slow read and write speeds over the SMB protocol. I basically have two computers running on different ISP (each having 100 Mbps connection ) and I am sharing a folder so that a program can read the files from the shared folder however, using tailscale the speed is very slow and it taking forever to load the files Sep 5, 2021 · How are your smb setting on the nas side? My 1st guess would be that it’s the smb signing problem but with Catalina that’s no longer the issue and you are on BigSur do that’s not it. 10. My motherboard has two lan ports, 2. Samba write is OK for large files, although even with them it will occasionally dip down to zero or near zero speeds. Jun 22, 2021 · Network Performance Slow File Share SMB Performance Tip Of the Day Windows Server 2019 Jan 9, 2023 · However if SMB 1 is somehow enabled and the computer you are using is also somehow trying to use SMB 1, you will get slow transfer speeds. Even deleting folders can be quite slow. I can also mount it direc Sep 18, 2023 · If the data transfer speed between your Synology NAS and Windows Explorer via SMB/CIFS is slow, refer to this article to check if you have applied appropriate network settings and ensure that both your Synology NAS and client devices are running smoothly. Jan 15, 2025 · Describes an issue in which networking performance is reduced after you enable SMB Encryption or SMB Signing in Windows Server 2016 and Windows Server 2019. Also wired speeds are normal. Oct 15, 2020 · GlobalProtect SMB Traffic Slowness (discussion) GlobalProtect SSL VPN Slow SMB Transfers (discussion) Allow me to first explain why SMB is a bit of a special protocol and why it's behaving the way it is: SMB content is inspected differently compared to other protocols, like HTTP or FTP for example. Transferring a 306GB folder this way looked like it would take several hours. I don’t know of something is off on the usage of ARC, SMB and Robocopy but Core was quicker. Oct 28, 2022 · Can u guys help me please?? i use SMB to back up my mac using time machine, I'm only getting 30MB/s even when I'm transferring regular files like videos. You can disable SMB caching in the shared folder settings. sorry for the stupidity but the speed of file transfer between the computers running win10 is very slow ( 700 kbps to be precise. And I played with group policy turn Oct 25, 2025 · SMB caching may not work properly if there are thousands of files and folders in a shared folder, or if SMB clients connect to the file server over a slow or unreliable network. If your NAS is operating on a private home network, you may want to disable transport encryption mode (use at your own risk) and enable opportunistic locking: Feb 14, 2012 · Hey all, I noticed the following problem: reads and writes, from and to samba shares are very slow. While I am transfering the file I can see from the network monitoring section there is 300mb/s of data coming in however the speed is just super Jan 28, 2025 · The slow file copy issues over SMB in Windows 11 served as a significant hurdle for many users following the operating system’s rollout. Finally tried FTP and it was fast. Nov 1, 2004 · Listen to Post Last year I wrote this article “What to Do When Creating Folders or Accessing Files on Remote Computer is Very Slow. Now i can barely manage 40MB/s, with usually being around 35-36MB/s on Mar 8, 2025 · Hello all. Feb 14, 2025 · Note SMB signing and SMB encryption are known to slow down SMB transfers. The system has 4 wd redpro 18tb drive in a raidz1 config. However, Microsoft’s commitment to resolving these issues through targeted updates, user engagement, and continual innovation has significantly improved the performance and user satisfaction levels. The 12MB/s per second suggest a Gigabit/Fast Ethernet problem, but I ruled this out by watching and downloading the same video Dec 21, 2024 · Problem: I replaced my Windows 10 computer with a new Windows 11 one. This results in slow refreshes of the contents of shared folders for users. Surprisingly, I am only able to transfer at a very slow rate of about 1mb/s. On W10 I usually see a throughput to my Synology NAS of close to 1 Gbit/sec. Nov 20, 2024 · Hello everyone, just finished building my truenas scale server, for some reason the smb transfer speed is super low, only getting around 20mb/s. 5G Realtek and 1G Intel, everything go Feb 14, 2025 · Hello, I have super slow SMB speed that is around 20MB/s only (MacBook to NAS), here is my settings: NAS with 1 Gbit NIC that wired to wifi router, cable is CAT5 now replaced with CAT6 Wifi router’s interface that connected to NAS is also 1Git/s Wifi router is Redmi AX3000 that supports wifi 6 M1 Macbook supports wifi 6 too Hereby is the samba settings: cat /usr/local/etc/smb4. My issue is that the smb performance is pending between 0-150Mbps, nfs performance is pretty stable at 150-200Mbps to my workstation. The primary factors are the count and speed of the CPU cores, and how much CPU time is dedicated to other workloads. conf on your Mac. I regularly copy and move 10's of thousands of files using finder on my synology system (large photography libraries) and it is comparable to doing it on a windows client. Essential is to turn of signing in /etc/nsmb. However, over the internet, I can download up to 10MB/s. In there try changing some settings like disabling Transport encryption mode and server signing. After I had fixed the issue last year. Is there a fix to increase access speed when using Azure as a file server or is 10 minutes for files in a folder to populate on a Mac typical? Sep 25, 2017 · In Advanced Settings, set the Maximum SMB protocol to SMB3, I also increased the minimum SMB protocol to SMB2. my transfer speed from PC to Super Micro server is a terrible 25-29MB/s… I can Transfer same video files to my Synology around 280MB/s -From Same PC If i use NFS from my dell r720 the speeds are more respectable 220ish to the Super Micro server. 2 in Proxmox (q35, VirtIO SCSI single) 8 cores of Epyc 7402 96GB RAM to TrueNAS 2 x NVMe PM983 PCIe passthrough 1 x Mellanox ConnectX 4-Lx 25gbpe PCIe Jan 4, 2025 · Hi, I stumbled upon a few threads but none of them seem to adress exactly my problem. Scale behaved like it had to scan the entire Jun 30, 2023 · I have been experiencing extremely slow file share access via Azure on MacOS. 2 over 10gbe connection. 04. Jul 21, 2025 · What TrueNAS version? I thought robocopy was slow under Scale also. I have time today to look why SMB file transfer is slow. 1 LTS). I cant find any help or why the Write speed is so slow on the SMB service Feb 8, 2022 · Hello, I am currently suffering from extremely slow read speed from SMB sharing, the connection speed is less than 1Mbps for some NIC. Nov 23, 2024 · Windows 11 24H2 significantly slows down SMB data transfer speed Users who installed Windows 11 24H2 complain that they experienced extremely slow read and write speeds over the SMB protocol. In DSM, go to Control Panel -> File Services -> SMB -> Advanced Settings. We currently are using a sonicwall tz400 for our firewall and the Global VPN IPSec tunnel for connecting to the office’s server. We have had incredibly slow download and upload speeds to the server for all file types Jan 18, 2025 · I have a network drive mounted on my Windows 11 Machine under Z:. A user reported that while using specialized software to restore data from a WDMyCloud NAS, he experienced a very slow data transfer rate. What use to take over an hour and 20 minutes is down to ten to 15 minutes. It is connected with a 1gb and a 2. All the same speeds. Oct 10, 2018 · I have big issues with my home network. I fully understand that small files are not going to transfer as quickly, but the write will crawl and often drop down to zero. Jul 4, 2023 · Samba read is great. For some people is ok, but I know my network allow faster file transfer. My setup : VM TrueNAS Scale 24. I am on a 1Gbit NIC, connecting to my Synology NAS and for larger files i was always able to saturate the speed by reaching round about 115MB/s. Now why win has better wireless speeds then Macos is interesting indeed. The amount of the performance loss depends greatly on the capabilities of the hardware involved. The client pc is a standard windows 10 os. Via sudo mount -t drvfs Z: /mnt/z I do mount this network drive into my WSL2 distro (Ubuntu 22. In this article, I will share another method to address the issue. Hey Guys, I'm frustrated af, I don't understand why my SMB Share and for test Purposes NFS Share (same Server) is just uploading at 11 MB/s but… SMB in mac os x is very very crappy but there are a number of ways you can speed it up to be approaching windows. I'm running a esxi all in one server with pfsense, solarís, linux + some other vm's. I ended up adding in a 128GB L2ARC on the computer under my Details section. I really hope someone give me a hand here as I’m completely lost what else can I change or try. I started to have the same I've been using SMB or FTP over lan to transfer files from PC to my phone and the max speed I get is around 2MB/s. Feb 25, 2025 · Hey there, i am sure many people here are familiar with the issue of slow SMB throughput to SMB network shares which started to happen (for me at least) with Windows 11 24H2. More or less but it affect it. Transfer speeds used to be way above 50 MB/s and are now ~12MB/s. Cause: Windows 11 seems to requests SMB sign Tried SMB, NFS, SSH, and they were all slow. 2 days ago · Handy for Mac users I’ve mostly used SMB shares for my Linux and Windows systems, so I wouldn’t call myself very proficient in the way macOS handles things. Provides a solution to this issue. I get better transfers using my reverse proxy online. My ping between endpoints is about 80ms and the explanation I found for SMB is the ping is way too high for it to work properly. Average 13MB/s - 17MB/s. The server is centos with SMB shares setup. A user reported that while Est. Oct 30, 2013 · Our company network (which I believe is a windows domain run on server 2008) is painfully slow. I think HTTP/WebDAV would be fast too but FTP was less work to set up. Investigating and playing around further didn’t help… (deactivate SMART testing, backup, active connected clients, restart server, restart service, checked my desktop on various things…) I did checked the connection speed between desktop and the Nov 10, 2024 · Re: Windows 11 SMB file copy Super Slow TS-212P by dolbyman » Mon Nov 11, 2024 12:48 am Suprised this ancient NAS ever got that fast. conf [global . conf file should look like Nov 26, 2024 · Here i tried ‘no presets’, ‘Multi-Protocol Share’ and it was originally on ‘private SMB Datasets and Share’. May 17, 2024 · So I am using SMB on my new TueNas Scale Dragon fish version of software. Further, refer to this article to see if the issue can be resolved. When the clients try to copy or read files from the SMB server, the connection speed would nearly immediately drop… I tried dragging a file and dropping it onto my MAC's desktop. ” In that article I mentioned several troubleshooting techniques and tips on fixing the issue of slow network access to shares. Open the properties of the shared folder, and go to the Sharing tab -> Advanced Sharing -> Caching. Starting with Windows 11, version 24H2 and Windows Server 2025, SMB signing is required by default. pmbsl 0o esc1 1qf6 ouv1a woupk lqxzn stxhhby hqxvoup kufyz