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Forum Discussion
Unable to change MTU, Readynas 104 OS6.4.1
I was attempting to adjust my MTU down from 1500 to 1472 or 1483 in order to troubleshoot network performance issues, and the UI rejected the changes with Error 4004019998. Does anyone know what ...
Despite StephenB attempt to clarify, I'm pretty sure there is still an issue with the measuring unit.
Speedtest gives the speed in Mbps, not in MBps... Unless you specifically ask it to use Bytes, and then I believe it gives KBps, not MBps.
170Mbps / 20Mbps is a good but common Internet connection. Usual on cable connection.
170MBps / 20MBps is a very very good Internet connection, not very common. Usually (real) fiber connection. And you wouldn't even be able to see the benefit of it (from a single machine) without a 10Gbps connection to both the Internet ONT and your machine. Also I doubt you'd be using an RN104 if you had a 10Gbps capable switch.
8MBps up is weird though. 8MBps out of a 20MBps connection wouldn't be that bad, but could happen. 8MBps out of a 20Mbps connection is not possible, unless calculation error.
How are you measuring the transfer speed from NAS?
Could you share screenshots of your tests?
Speedtest gives the speed in Mbps, not in MBps... Unless you specifically ask it to use Bytes, and then I believe it gives KBps, not MBps.
170Mbps / 20Mbps is a good but common Internet connection. Usual on cable connection.
170MBps / 20MBps is a very very good Internet connection, not very common. Usually (real) fiber connection. And you wouldn't even be able to see the benefit of it (from a single machine) without a 10Gbps connection to both the Internet ONT and your machine. Also I doubt you'd be using an RN104 if you had a 10Gbps capable switch.
8MBps up is weird though. 8MBps out of a 20MBps connection wouldn't be that bad, but could happen. 8MBps out of a 20Mbps connection is not possible, unless calculation error.
How are you measuring the transfer speed from NAS?
Could you share screenshots of your tests?
I was really hoping this discussion wasn't going to devolve into a debate about speeds, throughput measurement or the like. All I'm trying to do is change my MTU to troubleshoot poor WAN throughput on the ReadyNAS 104.
My connection is rated at 150 / 15. I consistently download at 130 - 150 without issues using my desktop or laptop. My ReadyNAS 104 is capping out at a maximum of 64 down, even though I can saturate the connection at over 700 Mbps on a LAN transfer. I've tried a variety of testing methods, (git, ftp, newsgroup with and without SSL) and 64 is the maximum I can hit, 40 being the typical average.
I have an error message being provided by the ReadyNAS with an associated error code, so you would think there should be a way to reference the error code to address the problem.
CigarSurgeon wrote:
I was really hoping this discussion wasn't going to devolve into a debate about speeds, throughput measurement or the like. All I'm trying to do is change my MTU to troubleshoot poor WAN throughput on the ReadyNAS 104.
I'm trying to keep it out of there, but sometimes the details matter.
Based on your last post, you are using SSH to log into the NAS, and you are running some speed tests there. And that you aren't doing remote access, instead you are running several applications protocols using TCP from the NAS command line - ftp, git, and nntp. Is that correct?
The laptop and desktop are using 1500 for their MTU correct? So it seems unlikely to be an MTU issue. Did you probe the MTU of your far-end test sites from a PC with Ping? You can of course temporarily change the NAS MTU using ifconfig, you don't need to use the GUI.
CigarSurgeon wrote:
I have an error message being provided by the ReadyNAS with an associated error code, so you would think there should be a way to reference the error code to address the problem.
The error code is when you try to change the MTU. That might not be your performance problem. I can't track that down anyway, since I don't work for Netgear.
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