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XDA2 and Sandisk WIFI-SDIO Card - Very poor Performance?

Hello everybody,
I am using an XDA2 (=iMate) which sports a SDIO slot; furthermore, the device is listed in sandisk's compatibility listing. To connect to our wireless network (811.b), I use the Sandisk SDIO-Wireless-Lan-Adapter. I had no problems connecting to the access-point, I get a stable connection immediately, the indicated connection speed is 11 Mbit/sec. Since the distance to the ap is very small, link quality is near 100%.
The problem is that the maximum transfer performance I get is very poor. I get no more than 250Kbit/sec (=30Kbyte/sec), no matter if I do webbrowsing or simply copy files from other computer in the local area network. This is nothing compared to the ~5000Kbit/sec (=600Kbyte/sec) that an 811.b adapter should be capable of. I tried changing channels, but that did not change anything. I also hard-reseted my xda2 and installed nothing but the sandisk-drivers...no changes. Alternatively, I tried the driver from socket....works, but no changes in performance.
I have got the same problem at two different wireless networks (at work & at home), so it seems that the problem is on my system. I cannot test more than these two networks, since I do not know any others.
Has anybody got an idea what could cause this problem? How fast are your XDA2s with SDIO-Wifi?
Thanks in advance,
Stephen.

I had the same problem I returned my card and got a Socket one instead (from Expansys) I worked immediately.
After I returned it I read somewere that you must set your access piont to work at only the slower 11mbs and not the faster 22 or 56mbs and that will resolve the Sandisk problem.
I cannot verify this as I had returned my card, but my access piont was a Dlink one runnig at 56mbs
Sam

hi stephob12,
after reading this read i have googled around and found an article about socket sdio wlan card in a german computer magazine. the wrote that the sdio-specs do not allow transfer speeds > 35,7kb/sec regardless what sdio-card you are using (sandisk or socket). your performance of about 30kb/sec is really near the theoretical maximum limit.
i have no experience with those cards but i had planned to purchase one for my xda2 but i am slightly disappointet about that sdio limit :? . at home i use a bluetooth connection to my dsl access point and the speed is very good especially when you know that bluetooth with its 723kbit/sec is much slower than 802.11b with 11mb/sec.
i will now overthink whether to purchase a sdio wlan-card or not. at least not for the price of around 100 us$ or euros they have at the moment.
regards
peter

Hi,
can you post the URL of the article you found?
or send it per PM if you prefer ...
and what do you mean with "socked one", which one is it ?
and no one has any information about how the Compact Flash one is working, by using the back pack - this would be an alternative, don't you think???
ciao

the card is a "SOCKET" you can see it on www.expansys.com it is offered as an alternative to SANDISK at thew same price.

Thank you for the quick answer,
now I sow it, it seems to be more interesting than the Sandisk, I wanted to buy one ... but in that case it is worth to wait, to find a Socket near to where I live
May be I can find it in China or in the USA,
there is another brand - I forgot the name - which will be sold soon at CompUSA ...
I'm trying to find it ...
wil post it when I got it

Check out an excellent analysis on the subject by Tom's Hardware
http://www.tomsnetworking.com/Sections-article82-page1.php
Here's the related discussion on PocketPC Thoughts site
http://www.pocketpcthoughts.com/forums/viewtopic.php?p=247349&sid=1a14c5914dad534b4fa6abf6b3cc384b

Cheeper SanDisk SD WiFi card
Hi,
i think ive found (cheers google :wink: ) the same SanDisk wifi card u guys were talking about for $85 US (£47 GBP sounds much cheeper) at blueproton.zoovy.com so i was gunna ask if ne1 had ne experience with them but u obviously do.
just a couple of questions, am i right in guessing that SDIO stands for Secure Digital Input Output? how secure are these devices? what sorta encryption base do they use? and does ne1 know if there is any talk of bringing out a faster (22g or 54g) card on SD or CF?
Cheers
Smiley

Smiley,
SDIO WiFi card offers you WEP with 128bit key and this is your basic Wifi security. I am not sure if the SDIO card does any encyription. I suspect not.
As far as I know there is no 802.11g card (SDIO or CF) yet. I just read the news about a 802.11g chip for mobile devices. See below :
http://www.infosyncworld.com/news/n/4968.html
This may mean we may see cards based on this chip in the future or there may be products using this technology to deliver built-in Wifi capability.
Hope this helps. Regards

samcory said:
I had the same problem I returned my card and got a Socket one instead (from Expansys) I worked immediately.
After I returned it I read somewere that you must set your access piont to work at only the slower 11mbs and not the faster 22 or 56mbs and that will resolve the Sandisk problem.
Click to expand...
Click to collapse
does this mean that the socket one works at the full 11mbps withought having to downgrade ur main network? :?
Cheers k_kirk for the link, looks interesting but i can see that little beauty costing a small fortune!! :roll:
Smiley

Hello all,
I've got this Socket SDIO WLAN card, and it's terrible with regardws to throughput, but it's okay besides from that. I can't even stream a 300kb/s video, and that's not impressive... In cradle via USB it's of course okay, and having problems with SIP VOIP client as well, very very sad.. I wrote Socket, and got a reply that indicates they're sorry for this, but that it's caused by some HW-related issues on my device (QTEK 2020)
Urgh...
Fred

PRETEC SD WLAN

Finally…some competition to Sandisk / Socket SD WiFi
Do you want to connect to your WLAN ? No problem…
Mobile Planet is selling the PRETEC SD WLAN cards.
Installed one yesterday…works like a charm in my MDA II.
After playing / experimenting (but never being able to reliably use it)
with Sandisk and Socket cards I have now 100% reliable WiFi connection.

at what speed and i'm not talking about the reported connection speed but the real world speed
thinking if the sd interface can reach those 11Mb speeds when sending

Speed...oh well, I'dont have any tools to test it.
POCKET SKYPE works...

Speed...oh well, I'dont have any tools to test it.
POCKET SKYPE works...

I have to comment on Mobile Planet... It took me a year to get off their spam list after ordering from them once. Never again.

@vegasmda: you should replace the link in your posting by a more anonymous link (just for security reason). the current link leads directly to your basket Stanley...
i do not know what misuse could be done by this i feel that it's better when nobody directly lands in you basket.
regards from black forrest
peter

CF Wireless LAN card
This is just to report that I just bought and fitted a ProLink WL201 wireless LAN card and it works like a treat, including with the access point our local pub landlord has set up. I'm very pleased with it as I can now answer all the quiz questions that I don't know. As this CF card is about a third of the price of many others, I thought you'd like to know.

CF Wireless LAN card
derekfv> As this CF card is about a third of the price of many
derekfv> others, I thought you'd like to know.
Are you using the backpack, or do you mean it's an SD card?
Thanks!

CF card in backpack
wtharp2, It's a CF card in the backpack - a little cumbersome but it saves a lot of money in UK as gprs is expensive with O2. Regards, Derek

Spectec Mini SD WiFi

Hi. i was wondering if anyone can help me out. i have the Spectec Mini SD WiFi card (SDW822 Mini SD, 802.11b standard). The card worked real well and now 6months later, it doesn't work. This is what i mean. anyone who uses it sees a green blinking light on its antenna and the device "sees" a hotspot and asks if i want to connect to it. Now, the light only blinks as if it is finding the correct setting, but doesn't pick up on a WiFi signal at all. Even sitting at my university in a "hotspot" in my student center, the card doesn't seem to be picking up the signal at all even though the appears the card is operational (the blinking green light).
i am not sure what to make of it, like if there is something busted inside the card or not, or is it my actual device (even though it worked for 6 months, why it doesn't work not i have no clue). i tried installing the drivers again, and even installing the latest driver provided by Spectec. nothing works though nor was their support much help (they just answered to uninstall and then reinstall the drivers but duh, i already knew that lol). can anyone let me know a solution like if i need to buy a new one or not? i miss having the WiFi on my ppc/phone and i don't have an unlimited data plan, plus even if i did, GPRS is painfully slow.
if this helps, my phone is an E-TEN G500 running Windows Mobile 5.0 (AKU 1.1.4). i hope i can hear a response soon. i may just end up having to buy a new one but i would like to hear anyone's thoughts. i hope you guys can help me!
by the way, i don't think it is my SD card port b/c i can still use any other card that i put in the slot with no problems like my GPS and the card i use to store my music and such.

Does anyone have anything to say? i tried their support again and still told me the same thing from their automated e-mail then send out and its really frustrating. even more so, no one has been able to say anything about to respond to this thread. please let me know anything that could lead me to a solution. i dont want ot have to buy another card to see if it works or not.

I guess no one wants to help me i guess these forums are useless if no one wants to help one another. i was hoping this would be a simple solution. i am gonna have to buy another card and see if it is my original card or if it is my device. i even upgraded the OS to AKU 2.2 but still nothing with my original card.
thanks everyone for your help

wifi solutions?

I'm trying to come up with a solution to add wifi to my vogue without loosing my storage, does anyone know of either a bluetooth wireless adapter that works with the Vogue or of an SD or MicroSD wifi card that also has storage? I've found an adapter for microSD to SD and already measured it and it should fit with the extended battery cover with the OEM battery.
Has anyone accomplished this? and how did you go about doing it?

You are basically screwed on wifi. You can probably set up a BT pan though at home.
There is a wifi micro SD card but very little testing has been done. The card would stick out of the slot probably 1/4" if not more.
http://www.spectec.com.tw/sdw823.htm
http://www.expansys-usa.com/p.aspx?i=140798&partner=froogle

jadesse said:
You are basically screwed on wifi. You can probably set up a BT pan though at home.
There is a wifi micro SD card but very little testing has been done. The card would stick out of the slot probably 1/4" if not more.
http://www.spectec.com.tw/sdw823.htm
http://www.expansys-usa.com/p.aspx?i=140798&partner=froogle
Click to expand...
Click to collapse
I've seen that, but having something stick out isn't a viable solution, which is why I found a microSD to SD adapter that will fit between the stock battery and the extended battery cover, this does work using the spectec SDIO wifi card, however I then lose my storage card. I've been looking into the eye-fi card which doesn't support AD-HOC I'm debating about picking up the 2gb version and attempt to hack the firmware to get it working but I was hoping there was a bluetooth wifi adapter I know they exist for palm but I haven't found one that works with ppc.
If anyone would be willing to help with trying to get the eye-fi 2gb+wifi card working on ppc that would be great.

Sean.Thon said:
I've seen that, but having something stick out isn't a viable solution, which is why I found a microSD to SD adapter that will fit between the stock battery and the extended battery cover, this does work using the spectec SDIO wifi card, however I then lose my storage card. I've been looking into the eye-fi card which doesn't support AD-HOC I'm debating about picking up the 2gb version and attempt to hack the firmware to get it working but I was hoping there was a bluetooth wifi adapter I know they exist for palm but I haven't found one that works with ppc.
If anyone would be willing to help with trying to get the eye-fi 2gb+wifi card working on ppc that would be great.
Click to expand...
Click to collapse
What are you talking about with the microSD to Sd adapter? You are basically screwed if you want wifi & have 2 options.
1. Dump Verizon & stich to AT&T
2. Get the Omnia or Touch Pro from Verizon.
Let me guess you don't have a data plan with Verizon

jadesse said:
What are you talking about with the microSD to Sd adapter? You are basically screwed if you want wifi & have 2 options.
1. Dump Verizon & stich to AT&T
2. Get the Omnia or Touch Pro from Verizon.
Let me guess you don't have a data plan with Verizon
Click to expand...
Click to collapse
No, I have Sprint and I have an unlimited data plan however it would be nice to add wifi especially since I'm now living in an area that sprin't doesn't have service in so I'm roaming on the verizon network and the data is slow as all hell.

looks like that wifi card is your best choice, you might try accessing your storage card via internet? Or just carry it around with the card...
and if you carry around a camera(I doubt you do): http://www.bestbuy.com/site/olspage...st=n&iht=y&usc=All+Categories&ks=960<br ></a>

I was wondering if there was a wifi card that operated throught the vogue's accessory slot, you know the one on the bottom...

acidreflux1 said:
I was wondering if there was a wifi card that operated throught the vogue's accessory slot, you know the one on the bottom...
Click to expand...
Click to collapse
Not sure what you mean by the accessory slot? Are you referring to the mini USB? At any rate the answer is no.

[Q] (Question) No WIFI on HTC HD2 with WP7

Hi everybody,
I installed the WP7, everything seem to work, but no WIFI. Bluetooth works, voice works, camera and video..Everything but WIFI. It just says "searching.." but nothing happens.
DO I need to unlock the phone and use Cheveron to get WIFI? Can anybody help? I'm using Sandisk SD 2GB card.
**BTW
I'm from Israel, we don't have the WP7 here yet, so Microsoft IL don't even know what I'm talking about regarding the activation code. Sent mail to the US office, hope it'll go through.

mashomisho said:
Hi everybody,
I installed the WP7, everything seem to work, but no WIFI. Bluetooth works, voice works, camera and video..Everything but WIFI. It just says "searching.." but nothing happens.
DO I need to unlock the phone and use Cheveron to get WIFI? Can anybody help? I'm using Sandisk SD 2GB card.
**BTW
I'm from Israel, we don't have the WP7 here yet, so Microsoft IL don't even know what I'm talking about regarding the activation code. Sent mail to the US office, hope it'll go through.
Click to expand...
Click to collapse
this has been reported to be caused by an incomatible sd card. read HERE through the posts and you will find out more.

I think I read almost every thread possible regarding WP7 wifi. Looked there, will look again. Thanks.

Are you sure IT didnt work and your sdcard is compatible?
If yes try a low WLAN channel instead of a high one, i cant connect to my own WLAN if i use WLAN channel 11-13...dont know why

You could try removing your sd card and rebooting. Bear in mind it will essentially reset to default (new) install. And will format your sd card when inserted again. So be prepared to start from scratch.

Same with me, it found every other wifi except my own one. My solution was to switch off my phone, switch off my wifi. Then switch on my phone. Then switched on my wifi, and it found it.
Worked for me, with out taking out SD Card.

FlowerPotmen said:
Same with me, it found every other wifi except my own one. My solution was to switch off my phone, switch off my wifi. Then switch on my phone. Then switched on my wifi, and it found it.
Worked for me, with out taking out SD Card.
Click to expand...
Click to collapse
Had the same problem, phone could find other wifi but not my own. This solved it though.

I had a similar problem too.
Wifi was working on the most WiFi networks, except for mine.
It was necessary to enable Reverse Access to router. . .
BR