network speed

  1. U

    Terrible Network Upload Speeds from Proxmox Host

    I've had fun building a plucky little homelab on Proxmox 8.1.4 running kernel 6.5.13-1-pve. It's installed on an HP EliteDesk 800 G6 Desktop Mini PC, with the OS installed on a SATA SSD, there being a 4tb NVME btrfs pool, and there being multiple HDD's connected via USB3. Services are run an an...
  2. A

    Network speed slows down during rsync

    Hello everybody! I have proxmox cluster 2 nodes Virtual Environment 7.4-17 and NAS. Without any cluster FSs. Just EXT2 Dirs and LVM.No ZFS. Network between two nodes and NAS 10Gbit. iperf3 between hosts confirm it. I have NAS with NFS export an 10 Gbit network. I have NFS mountpoint /mnt/point...
  3. R

    [SOLVED] Network speed stuck at 100Mb/s - Proxmox VE 8.0.2

    Hey, I've just installed Proxmox VE 8.0.2 on two different types of PC and I'm having the same issue. They both are stuck on 100Mb/s network speeds, not sure where to go from here. I did fresh install's just last week and made sure they are both up to date. root@TestLabServer:~# ethtool eno1...
  4. E

    Proxmox VE Virtual Windows Network Adapter Speed Problem

    I have a server with Proxmox operating system installed, and I have created a virtual Windows 10 machine on it. The server is equipped with a Mellanox dual-port network adapter, each port capable of speeds up to 25 Gbps. When assigning the network adapter to Windows, I chose the virtIO model...
  5. A

    Windows Server Upload slow during no other Upload but fast with

    On a Windows Server 2019 VM on a Proxmox host (7.1-11 PVE, 5.13.19-6-pve kernel) I'm having a strange problem: The upload to a new Synology DS1621+ is horribly slow (1-3 MB/s). The fun part is, as soon as I start another upload to anything else in the network both uploads become fast. The...
  6. H

    Bandwidth throttling for PVE backup job

    Hi, I got an issue with backups from my proxmox PVE system to a file share. The problem is, that the file share is on an older model HPE MicroServer. If I write to it over a long period of time with gigabit speed it tends to „take a break“ to write all the data to the disks. When copying from...
  7. F

    No 2.5GbE connection on Intel NUC 11 pro

    Hello all, I just bought an Intel NUC 11 Pro and wanted to run some VMs on it via proxmox. First, the installation did not work and aborted with an error. Now I tried the new version with the 5.11 kernel and the installation goes through cleanly and everything works. Unfortunately the network...
  8. J

    Slow Internet Performance in the VM

    Hello, I have an internet connection speed problem in my VMs. The Proxmox server has an excellent connection. I installed Centos7 on the vm. Here are the speed test results of the Proxmox and a VM: Proxmox: root@ns5004254:~# ./speedtest-cli Retrieving configuration... Testing...
  9. K

    Slow network speed on VMs, but not on host

    Hey there! I got a very strange issue; Sometimes my network speed is throttled to 100 Mbps. But I got 1000 Mbps at home. For example; If i download something on host, its downloading in 110MB/s (normal speed) - but if i download from VM, it's downloading in 10MB/s. It's like its changing from...
  10. T

    Network speed limited to 100Mbit/s

    Hi I'm using proxmox to run nextcloud on my homeserver. All's setup and running as needed. I realized that my up- and downloads are slow and limited to 100Mbit/s; eventhough I've a gigabit standart NIC and Router. Would b very cool if someone could tell me how I edit the interface to 1000Mbit's...
  11. Z

    KVM VM Internet Upload Speed Conciderably Slower

    Hello, I have a ubuntu 18.04 guest running in a KVM due to kernal modifcations for a WireGuard server to run on it. When preforming a speedtest with speedtest-cli, I get the following output: Testing download speed... Download: 73.61 Mbit/s Testing upload speed... Upload: 3.60 Mbit/s Which is...


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!