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.

Just give me a few days and I'll post it for you. In the meanwhile, can you give me a short instruction on which application to use for measuring speeds?Cheers,Wim

wimski99 wrote:Just give me a few days and I'll post it for you. In the meanwhile, can you give me a short instruction on which application to use for measuring speeds?Cheers,WimDrag & drop a large file and just measure the MB/sec throughput you get both ways. That should do it.

I don't normally post to these, but it looks to me that this isn't a throughput issue, but more likely some sort of a protocol issue. I happen to have an XP box running wirelessly though a linksys router to my NAS and a Vista box runing wirelessly to the same NAS via a DLINK router. The Xp seems to have very good performance. The Vista seems to have issues when trying to access the directory strucuture on the NAS. The download transfer rate is abou 2.6 Meg per second reguardless of the MTU settings. I don't have bonjour running on my NAS (not sure if that matters). If I change the MTU from 1500 to 1492 on both the Vista machine and the NAS, I get much better results.

Chewbacca wrote:1) Has MTU been changed to 1492 and running Windows Vista SP1Yes and Yes.2) Model of Wireless Router and Firmware used.D-Link DI-714P+ w/ firmware version 1.33 which is latest according to D-Link.3) Wireless Card Model and FirmwareIntel 4965AGN (Don't know how to check firmware on this thing.)4) Connection Speed that you are seeing for Wireless Adapter. (54Mbps/24Mbps) 11Mbps5) Connection Speed between ReadyNAS to Router (10/100/1000Mbps)100Mbps6) Throughput from Windows XP to ReadyNAS and Vista to ReadyNAS. Both Machines at or near same location. (Read/Write MB/sec)I don't have a Windows XP machine.IOMeter on Vista says: Read: 0.57 MBs per Second Write: 0.59 MBs per Second7) Throughput from Windows XP to Vista (Read/Write MB/sec)I don't have a Windows XP machine.8) If MTU settings were changed to 1492 on the NAS and SP1 is installed, Would like a Wireshark capture when transfering data from Vista to ReadyNASI have MTU set to 1492 and have installed SP1. I installed Wireshark and captured a transfer. How do I get it to you?My answers are embedded in your quote above.

sytThanks for the response.You can send the Log file here attn mehttp://www.readynas.com/forum/faq.php#H ... ll_logs%3FIs the Read/Write for Vista using Iometer or Drag and Drop?Thanks

Vista Wireless Performance Questionnaire

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Belm1221
Aspirant
Oct 05, 2011
So it looks like im at the same point as most.
I have a very standard home network with 2 hardwired PC's (1 Vista and 1 XP) and 1 Vista Laptop on wireless.
Wireless network is running at 54Mb

All systems and internet run fine. I also have a shared network drives in both the hardwired PC's.
Accessing these from the laptop is great, very fast and on windows task manager in the networking tab shows on avaerage that when i access pic's and vids its about 16-18% of network utilization sometimes upto 22%.

When accessing the NAS i've never seen it get over 1%. Its completly unusable. Tried all the MTU setting and also made sure my wireless is on WPA2 AES.

I got this unit so that i can do away with the network drive and have everything in one place and then also a backup copy via the raid system. I had then also hoped to expand my Netgear units so we can access vids and pics on the TV and in the internet. Not sure now thats going to be my plan.

Why would this NAS not opperate as i according to the netgear sales pitch is should do..........Its getting very frustraighting.

If anyone can offer any help, advise or pointers that would be great.
Cheers B.
StephenB
Guru - Experienced User
Oct 05, 2011
Are you getting this slow performance on both wireless and wired, or only on wireless?

Also, can you provide a few more details about your router/switch?

It would also be useful to check Frontview's network statistics, and confirm that the drives are completely resynced.
dbott67
Guide
Oct 06, 2011
Belm1221 wrote:

If anyone can offer any help, advise or pointers that would be great.
Cheers B.

I'm not sure if you followed these instructions or not, but if you follow these instructions wireless performance should be back to expected levels: http://home.bott.ca/webserver/?p=226

Belm1221 wrote:
If anyone can offer any help, advise or pointers that would be great. Cheers B.

LITHIUM1

Aspirant

Feb 03, 2012

dathome wrote:
Hi,

I'm new to a ReadyNas Duo. I was having constant trouble with loss of connection between Vista on my laptop and the Duo. I upgraded the wireless driver on my laptop and still had trouble, but the new driver had some diagnostics. I found that I was losing the connection because of a MIC Failure with the Duo, related to the TKIP security protocol. I changed the security protocol on my router to WPA2-AES, and since then I have not lost the connection when trying to copy files to the Duo. I'm so relieved now I just had to share this. Maybe it will help others.

dathome wrote:
Hi, I'm new to a ReadyNas Duo. I was having constant trouble with loss of connection between Vista on my laptop and the Duo. I upgraded the wireless driver on my laptop and still had trouble, but the new driver had some diagnostics. I found that I was losing the connection because of a MIC Failure with the Duo, related to the TKIP security protocol. I changed the security protocol on my router to WPA2-AES, and since then I have not lost the connection when trying to copy files to the Duo. I'm so relieved now I just had to share this. Maybe it will help others.

This is the only reference to MIC failures I can find on the forum so I figured I'd give it a "+1".

After having tackled a disconnection problem between my Vista wireless laptop and ReadyNAS Duo in the past, I was surprised to find that lowering the MTU and mapping shares by IP address did not fix a similar disconnection issue on my girlfriend's new Windows 7 laptop.

Investigating with Wireshark simply showed a TCP re-transmit at the point of failure, followed by several ARP requests to find the NAS, before eventually timing out. However, as above, updating the drivers of her wireless adapter (Intel Centrino Wireless-N 1030) also installed an event viewer that immediately reported a MIC failure during the next test. I switched my router to WPA2-PSK AES and (it would appear) the problem has been solved!

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Vista Wireless Performance Questionnaire

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