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Forum Discussion
Vista Wireless Performance Questionnaire
With the amount of Vista issues on the forum, we are putting out a questionnaire here to get more information on the setups to get get a grasp of what is happening. Based on user feedback over the last several months, we've also updated the questionnaire with some possible solutions as well that you can easily try out.
0) Updated to Windows Vista SP1? SP1 contains a number of network changes that improved overall throughput with the ReadyNAS.
1) Tried changing MTU on ReadyNAS and laptop to 1492? Instructions on how to change Vista MTU at http://www.kitz.co.uk/adsl/vistaMTU.htm . A couple users had success keeping the ReadyNAS MTU at 1500 and switching Vista MTU to 1460.
2) What model of Wireless Router and firmware is being used?
3) What Wireless Card model and firmware being used?
4) What connection speed are you seeing for Wireless Adapter (i.e. 54 Mbps)?
5) What's the connection speed between ReadyNAS to Router (10/100/1000 Mbps) -- you can see this in FrontView's Network page.
6) What's the throughput from Windows XP to ReadyNAS and Vista to ReadyNAS? Both Machines at or near same location?
7) Whats the throughput from Windows XP to Vista?
8) Does disabling firewall help? One user reported problem solved by disabling Symantec firewall.
9) Does uninstalling anti-virus help? One user reported problem solved by uninstalling CA anti-virus.
10) Does enabling jumbo frames work? Several folks reported problem solved by enabling jumbo frames, and this also had the effect of speeding up wired transfers.
11) Are you able to try another router? A couple users reported replacing current router/switch solved the problem.
Updated 3/4/2009 by yoh-dah.
0) Updated to Windows Vista SP1? SP1 contains a number of network changes that improved overall throughput with the ReadyNAS.
1) Tried changing MTU on ReadyNAS and laptop to 1492? Instructions on how to change Vista MTU at http://www.kitz.co.uk/adsl/vistaMTU.htm . A couple users had success keeping the ReadyNAS MTU at 1500 and switching Vista MTU to 1460.
2) What model of Wireless Router and firmware is being used?
3) What Wireless Card model and firmware being used?
4) What connection speed are you seeing for Wireless Adapter (i.e. 54 Mbps)?
5) What's the connection speed between ReadyNAS to Router (10/100/1000 Mbps) -- you can see this in FrontView's Network page.
6) What's the throughput from Windows XP to ReadyNAS and Vista to ReadyNAS? Both Machines at or near same location?
7) Whats the throughput from Windows XP to Vista?
8) Does disabling firewall help? One user reported problem solved by disabling Symantec firewall.
9) Does uninstalling anti-virus help? One user reported problem solved by uninstalling CA anti-virus.
10) Does enabling jumbo frames work? Several folks reported problem solved by enabling jumbo frames, and this also had the effect of speeding up wired transfers.
11) Are you able to try another router? A couple users reported replacing current router/switch solved the problem.
Updated 3/4/2009 by yoh-dah.
144 Replies
Replies have been turned off for this discussion
- 1) Has MTU been changed to 1492 and running Windows Vista SP1
Yes. Disabled Jumbo Frames on the NAS and set MTU to 1492. Also set MTU on the router to 1492.
2) Model of Wireless Router and Firmware used.
Linksys WRT54GS, v4.71.4
3) Wireless Card Model and Firmware
Intel 4965 AGN, 12.0.0.82
4) Connection Speed that you are seeing for Wireless Adapter. (54Mbps/24Mbps)
54 mbps
5) Connection Speed between ReadyNAS to Router (10/100/1000Mbps)
100 mbps
6) Throughput from Windows XP to ReadyNAS and Vista to ReadyNAS. Both Machines at or near same location. (Read/Write MB/sec)
Vista - read from ReadyNAS 1.3MB/sec
Vista - write to ReadyNAS 1.0MB/sec
XP - read from ReadyNAS 1.0MB/sec
XP - write to ReadyNAS 1.0MB/sec
The XP performance seems a lot slower than I remember.
7) Throughput from Windows XP to Vista (Read/Write MB/sec)
n/a don't have any XP shares visible to Vista
8) If MTU settings were changed to 1492 and SP1 is installed, Would like a Wireshark capture when transfering data from Vista to ReadyNAS
Notes: I have done all of the following:
1. disabled Vista's multimedia throttling via registry tweak.
2. disabled Vista auto-tuning (via netsh command)
3. disabled Vista firewall when on local network yoh-dah wrote: Try lowering MTU only on the client that you access over wireless. This will force the ReadyNAS MTU down to 1492 only with the wireless client.
I've set my wireless connection in Vista to 1492 leaving the NAS and all the rest of my network configuration to their default.
Problem is I can't detect any other vista or xp computers and Readynas.
Changed it back to 1500 and no problem..
Kind regards
Jellencfish wrote: I have been experiencing this same problem: good speed on wired connections with Vista but almost unusable on wireless connections with Vista.
I have now changed the MTU on my ReadyNAS NV+ to 1492. This has the following result: Wireless access is now fine but wired access speed is halved. A 138MB file took 6sec to transfer at MTU 1500 and 12sec at MTU 1492.
My feeling is that this is a compromise rather than a solution but at least I can now access files on the NAS with my wireless laptop.
Would wired speed be improved if I were to change the MTU on my wired workstation to 1492 to match the NAS?
I have also encountered this. Setting MTU to 1492 on the NAS and on the router led to Vista wireless access being usable, but Windows XP wired access was significantly slowed. Oddly, only *reading* from the NAS is affected - this has come down to 11MB/s - *writing* to the NAS still takes place at 21MB/s. (Wireless connections read and write at about 1.3MB/s.)- A little confused, which do I reduce to an MTU of 1492:
a) Readynas Duo
b) Vista Wireless Netwrok Connection Adapter (via cmd.exe)
c) Wireless modem/router
...d) Only A and B (leave C to 1500)
...e) A to C
Appreciate any input.
Cheers - Update:
To make sure the hangs in Vista when mtu is on 1500 isn't caused by my wireless Intel 5100 chip I installed a D-Link DWL-G650 card with latest Atheros Vista drivers.
Did the same test over again. Almost freezes when mtu on Readynas is set to 1500.
Kind regards
Jellen - Is there any ongoing investigation in this problem?
Do I have a faulty Readynas Duo?
Kind regards
Jellen - We're trying to come up with a solution where you can specify in FrontView the systems where burst mode should be disabled (equiv to setting MTU to 1492), allowing normal wired systems to enjoy the faster burst mode. We'll have a beta for that hopefully in a couple weeks.
yoh-dah wrote: We're trying to come up with a solution where you can specify in FrontView the systems where burst mode should be disabled (equiv to setting MTU to 1492), allowing normal wired systems to enjoy the faster burst mode. We'll have a beta for that hopefully in a couple weeks.
Ok I'll be the first one to test the new beta, can always pm me if you want me to test something...
Hope this solves the problem then.
Keep up the good work jedi's !
Kind regards
Jellen- Another bug:
After switching from 1500 MTU to 1492 you can't change back to 1500.
I set 1500 and press apply and lose all access to frontview, need to power down by pressing the power button on the Duo and boot again. GGG wrote: A little confused, which do I reduce to an MTU of 1492:
a) Readynas Duo
b) Vista Wireless Netwrok Connection Adapter (via cmd.exe)
c) Wireless modem/router
...d) Only A and B (leave C to 1500)
...e) A to C
Appreciate any input.
Cheers
Anybody?
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