Upgrade to 2.6.0 download speed is slow
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to be clear this has nothing to do with hardware or OS
No changes have been done on the network and all devices (Windows or Android) have the same issue - so Windows can not be involved here - especially when WinUpdate has been done 2 days before the PFSense upgrade and no issue after it
This appears immediately after the upgrade from 2.5.2 to 2.6.0 -
I have deployed a new PFSense running 2.5.2 and the network connection is now as expected; speed test showing 100 Mbps as before the upgrade to 2.6.0
This confirms something is wrong with 2.6.0 -
@benoithamet What network cards do you have in the problem router?
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@steveits PFSense is virtualized on Hyper V so it using vNIC
how this is relevant? there has been no change in the network configuration before or after PFSense upgrade
And the test with a PFSense running 2.5.2 has been done in the exact same configuration -
@benoithamet said in Upgrade to 2.6.0 download speed is slow:
PFSense is virtualized on Hyper V
There have been a few threads this week about Hyper-V, such as
https://forum.netgate.com/topic/169884/after-upgrade-inter-v-lan-communication-is-very-slow-on-hyper-v/1I haven't looked at it but it's always possible a FreeBSD driver changed between FreeBSD versions.
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@steveits Thanks
This solves the trouble
The solution is https://www.doitfixit.com/blog/2020/01/15/slow-network-speed-with-hyper-v-virtual-machines-on-windows-server-server-2019/Interestingly I never had any trouble until this upgrade
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So specifically disabling RSC in the vswitches brings back the expected throughput for you?
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@stephenw10 yes, on both LAN and WAN vSwitch
if only one still have the RSC enabled, the connection speed drops to 10% of the normal one -
Interesting. Thanks for confirming.
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@stephenw10 no thank you; I would not have thought about the hypervisor as I did not had any network trouble before
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@benoithamet I had the same problem after update to 2.6.0 ... Thank you for this post, it was a great help to me.
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so, what's the fix for those of us on bare-metal and not VMs?
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To throughput issue after upgrading to 2.6?
From what? On what hardware? What sort of slow down are you seeing?
