Bit of Bandwidth data on WiFi vs Edge

My home uses an Airport Extreme. The bandwidth from SBC DSL on my MBP 17 is usually around 1150 Kbps (as measured by the CNET bandwidth website). When I do the same test on the iPhone through the my Wi-Fi, I get a bandwidth around 385 Kbps. Not bad. On Edge, close in clock time, 177 Kbps.
Not very scientific, one trial for each. The test was done at 9 PM EDT.
MacBook Pro 17 Mac OS X (10.4.10)

Thought I'd share my numbers now that I have a wifi router (bought one just for my iPhone!). My EDGE at home is usually around 170 kbps. When connecting to my router over wifi, which is connected to a cable mode, my iPhone tests at around 4500 kbps, same as my desktop computers. It's awesome! Sadly I am now able to notice that the iPhone's 650 mhz CPU isn't able to render "busier" web pages as fast as my desktops.

Similar Messages

Podcast syncing via WiFi and EDGE

It sure would be nice if the iPhone could update podcast feeds via WiFi and EDGE. This would be great for more time-sensitive podcasts such as news podcasts and/or those updated on a daily basis.

While it is theoretically possible to podcast over wifi, edge is not a timing sensitive protocol. The data gets there when it gets there and that is it. Even if edge had enough bandwidth to run the podcast (which it generally doesn't) it wouldn't be a pleasent experience.
Cobalt Jacket wrote:
It sure would be nice if the iPhone could update podcast feeds via WiFi and EDGE. This would be great for more time-sensitive podcasts such as news podcasts and/or those updated on a daily basis.

Problems Receiving Emails and some data on WIFI since latest software update.

Problems Receiving Emails and some data on WIFI since latest software update.
My blackberry torch will not receive emails on wifi since the latest software update, I've tried numerous wifi networks and several handsets, even had them replaced and received a brand new. Still the same problem.
When turning off the wifi network on the torch, the phone will stall for 5-10min while it tries to communicate with the network (vodafone) to receive outstanding emails and data.
Can someone please inform Blackberry and get a quick fix on this

Sounds like you have Do NOt Disturb turned on.
settings - do not disturb - off

320N Freezes when trying to transfer data over wifi

I have the 320N and I am very frusterated. I would just take it back, but I bought it brand new on Amazon.com, meaning I will have to pay shipping because I threw out the box and the return shipping form for RMA's! I don't even know if Amazon will take it back without that paperwork, but anyway here's the issue...
I don't have any N cards yet, but I upgraded to this router because my home internet service is faster than what my older WRT-54g could route. This new router does route and I can now achieve the rated speeds of my ISP (50/10 mbps).
I can transfer large files 6+ GB WIRED between any of the LAN ports on this device. However if I try to transfer much data over wifi, the router will simply stop working. The lights on the front work fine, they blink like there is activity, and the power LED is solid, but it won't pass traffic and the wifi SSID dissapears. I run a constant ping to the router (ping -t 192.168.1.1) and I get <1ms replies. On my laptop I initiate a download of a 1GB file which is shared in my windows 7 homegroup. Within a minute or two the constant ping to the router starts timing out. Internet access to anything (wired or wireless) instantly ceases. New introduced devices will not grab a DHCP address. Existing PC's whom already have their DHCP address can talk to each other only if wired. The wireless transmitter stops broadcasting the network and devices no longer see it on the airwaves. The only way to fix it is to power cycle it.
It doesn't even have to be a large file over wifi to transfer. Just now as I'm typing this post I noticed the constant ping on my other monitor started timing out. I power cycled the router in time for me to submit this post. In fact I had to do it three times in the time it took me to write this post. This is the most frustrating experience I've had with any wifi ap/router, and I play with Cisco gear at work that run real IOS.
Here's what I tried so far.
Reset factory defaults by holding in the rear reset button for over 30 seconds.
I can confirm this resets the defaults as the password and all other settings are back to default.
I tried WPA2 Personal. I tried WPA. Router still freezes.
I tried it with just the default settings. Router still freezes.
I've reset the router numerous times. Still freezes.
Power cycle it for more than a minute. Still freezes.
Reflash it with Linksys's latest firmware. Still freezes.
What do I do next? I have a feeling it's the same problem as in a lot of the HP Printer firmware boards. That problem is poor solder joints on the BGA processor connection. To fix that you put the formatter board in an oven at 400 degrees for 5 to 8 minutes. After that time you just let it cool to room temperature. The oven heats the poor solder joints enough so that it reseats and gets a better connection. There are hundreds of posts of success on this. I also hear that the solder connection problem exists for many of the older revision Xbox 360 game consoles causing the infamous "Red Ring of Death".
So do I try to fight with Amazon to take this back and eat the shipping?
Do I void my warranty, open the device up and put the board in the oven?
Do I buy another router from a closer store, but then put this one in the box and take it back?
Do I just cut my losses?
Do I just use this as a wired router (disable Wifi) and hook up my WRT-54g and make that act as just an access point?
Thanks for the advice.
Solved!
Go to Solution.

Ok I've had my replacement 320N for almost 1 full week now, and while at first it was fine, come Sunday it appears to freeze during heavy transfers. I was streaming an HD movie to the laptop connected to the TV. 3/4ths of the way through the movie it started skipping. What do you know, the whole network was down. No internet or anything. Power cycle the router and everything was back up. Needless to say, I finished the movie through the wired connection. The next day I tried copying 8GB of data wirelessly. The SSID vanished 1/3rd of the way in during the transfer.
What is wrong with this stuff? Linksys doesn't make things like they used to. This 320N is so cheaply made I don't think I could recommend it to anyone. I might see if I can send this back to Amazon and get a Netgear.

How do I perform a trigger that collect the data for every rising edge continuously and then automatically put the data in a .xls file??

I need to collect the data for every rising edge a trigger perfoms. So far I could collect the data but it seems that it only collect the data in the start of triggering, but not continuously. I also want to put the data in an excel spreadsheet and automatically add new set of data when the next rising edge occur. Please help.
thanks a lot.

LabWindows/CVI actually ships with a comprehensive set of examples for just about every area of programming you can use it in, including triggered analog data acquisition and ActiveX control of Microsoft Excel for data logging. Go to the following two directories on your computer to find respective examples for the two areas you are inquiring about:
1) C:\MeasurementStudio\CVI\samples\DAQ\Ai\DAQsingleBufExtTrig.PRJ
2) C:\MeasurementStudio\CVI\samples\activex\excel\excel2000dem.prj
Just make sure to study the examples carefully so that you fully understand the processes followed for triggered analog acquisition and the process of launching an ActiveX automation server for control, and then you should be able to merge the concepts shown in both of the example
s to make the application you desire.
Jason F.
Applications Engineer
National Instruments
www.ni.com/ask

How to scale 32-bit signed integer data to floating-point voltage when acquring data in DAQmx by PXI4472?

I acquired data in DAQmx by PXI4472. For the high speed data logger, I used "DAQmx Read" to read unscaled 32-bit signed integer data.
Now, my question is how to scale 32-bit signed integer data to floating-point voltage?
I think that it's (20/(2**24))*I32 because the voltage range of PXI4472 is -10 to +10 and its resolution is 24 bits. But I cann't get correct voltage by that formula.

While you could hard code the scaling factor, it will be more flexible if you retrieve the scaling coefficients from the driver. To do this, you need to use the Analog Input>>General Properties>>Advanced>>Device Scaling Coefficients>>Device Scaling Coefficients properties under the DAQmx Channel Property Node. Look at the documentation for this property to see how it can be used to create a polynomial equation for scaling to volts.
Since you are creating a data logging solution, you may want to consider using a compressed data stream from the driver instead of the I32 data type. This will allow you to read the data back as a stream of u8's instead. Since the PXI-4472 is 24 bits, you will only have to write 3 bytes to disk for each sample instead of 4. You can check out the following examples for how to create an application using this compressed data stream. It also shows how to use the scaling coefficients to transform the unscaled data back to voltage values.

Iphone 5 wont connect to internet while using data or Wifi after iOS 7.0.6 update

I just updated my iPhone 5 today to iOS 7.0.6. No matter what conection I use, data or wifi connection, I can not connect to the internet or use any function involving the internet.

UPDATE - I got my devices working on my wifi. Here's what I did:
1. On your iOS device - go to "network settings" and select the associated network and select "forget this network".
2. Reboot your iOS device.
3. Change the wifi (WPA2) password on your wifi AP.
4. Re-join the wifi network on your iOS device. Put in the new password.
--> If your system is like mine, the device will now connect to your wifi network. I suspect the SSL fix somehow munged the password encryption for the existing password, but changing it on both ends somehow fixes it.
good luck!!
Tom

Canada iPhone 3G, accessing data using WIFI

I am with Rogers (Canadian wireless provider). I was in the US this past week. I left the DATA ROAMING switch to OFF so I would not incur data roaming charges. Instead I wanted to access data using WIFI instead. I found free WIFI hotspots, was able to connect, however whenever I tried to access data it did not work. I went to an Apple Store in the States and they said the Data Roaming overrides all data access regardless if you trying to access data using WIFI or Cell towers. Can someone confirm this is true?

this same problem keeps happening to me.. im with telcel in mexico and everytime I go to the US I cannot access free wifi hotspots, it says something about enabling international data roaming. could it be a bug on the iphone set-up? how come not everyone has this problem?
im going to Europe soon and I would like to be able to check my emails at free hotspots, how can I fix this? my only thought is that with data roaming off the phone automatically doesnt let you join the wifi network or doesnt let u use it.
any thoughts?

OCSP Service using up quite a bit of bandwidth

I have been tracking down an issue regarding our ISP bandwidth usage (very high).
I believe I have found an issue with the OCSP daemon (ocspd) using up quite a bit of bandwidth for no apparent reason - my initial tests seem to show that this daemon, under Mavericks, is using about 100MB of download bandwidth per day (approx 3GB per month). This is huge considering that this process is meant to cache retrieved results (assuming of course it is getting results).
As a further test, I had 2 Macs running Mavericks and 1 running ML overnight, with all machines running RubberNet to monitor per process bandwidth.
On both Mav machines, the ocspd daemon used up the traffic as per above but ML used no bandiwdth for the same process.
The implications here is that users with bandwidth limited connections (e.g. Satallite or Mobile) will use up much of their allowance when at idle hence my interest.
Can someone verify these findings?
Just a wild thought: Perhaps because the keychain is now sent to iCloud in Mav, I wonder if the certificates are being checked more often for security reasons.
Thanks
Emlyn

Triple-click anywhere in the line of text below on this page to select it:
/var/db/crls
Copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.
A folder named "crls" should open. Move all the files in that folder to the Trash. You’ll be prompted for your administrator login password. Reboot, empty the Trash, and test.

All aps that require wifi or edge not working

Is anyone else having this problem. I can't connect using wifi or edge. All I get is no service.

I just posted a similar thread, under a different category.
I'm having a similar prob. I got my phone replaced today, wifi works, edge doesn't. I have a edge symbol present though.
If it's not one problem, it's another.
agh!!

I have an iPhone 4s. I can text another android phone but I cannot attach a picture without using data. Wifi will not allow attachments

I have an iphone 4s with ios 7. imessage between iphones works fine. When I try to message an android phone with an attachment (picture) it wont deliver and the party cannot send a picture to me. Thw only way it will work with android is if I turn data on. A simple message will work with Wifi, with no attachments
This does not seem right. You should be able to send attachments to android party on Wifi???

MMS requires cellular data. Sending pictures through iMessage can be done either using cellular data or WiFi. You're phone is working as designed.

Poor WiFi on Edge 15

I purchased the Edge 15 two days ago from Best Buy. Brought it home and did the setup and it seemed slow. Not the processor, but the downloads. I ran a speed test and was getting 1 Mbps download but 5 mbps upload. I pay for up to 50 Mbps. I checked the speed on the phone via Wifi while sitting infront of the computer and was able to get the usual 30 Mbps. So I went in and updated BIOS, Intel network drivers, and ran a Windows update for 8.1. The problem remained. I took the laptop down to the router and plugged in a wired connection and was getting the usual 30 mbps. I updated the firmware on my wireless router and had no improvement. Switched over to the 5 Ghz WiFi connection and will get 25-30 Mbps, but it is inconsistant. Sometimes it will drop down to 1-2 Mbps. I've also tried manual dumps of the temp files and the DNS to no avail. It seems to me that there is a setting or program that is throttling the connection since no other devices in the house have that issue. Any assistance is appreciated.

For those with Lenovo Edge 15 (not ThinkPad Edge 15 !), please try to install BIOS.
Version B9CN16WW
Release date: 1/4/2015
Download here: http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-edge-series-laptops/edge-15-lap...
Summary of Changes
B9CN16WW
WLAN RF noise issue (Control FIVR spread spectrum properties)
Intel-TA-201409-001 Sighting issue
Add patch for Intel sighting issue: Intel-TA-201409-001, add smm LockBox function
Sighting_SVN116172-Add patch for Intel sighting issue: Intel-TA-201409-003, Use of Non-Locked BARs in SMI Handlers
Regards,
Cleo
WW Social Media
T61, T410, x240, Z500, Flex 14
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Problem Importing Data from Raiser's Edge into Crystal Reports

This is likely going to be a very simple one for the expert community. I am a novice Crystal Reports user. We received our license for the app bundled with the Raiser's Edge donation tracking software.
In previous versions of Crystal, when importing data from a Raiser's Edge export, the default method of data linking was a Left Outer Join.
However, for the latest version, it appears this has defaulted to using an Inner Join, which does not display data the way we'd like it to in our reports.
The fix we use right now (supported by Raiser's Edge support team) is simply to go in and manually adjust all of the reports table links. This can be time-consuming, however.
I would like to know if there is a way to get Crystal to import, by default, using something other than an Inner Join. Simply using the Add Command when importing the data isn't an ideal option as building a custom SQL query each time is about as time-consuming as manually changing each of the links via the Crystal GUI. (part of the reason this would be so time-consuming is that the Raiser's Edge database tables aren't intended to be directly interacted with by the end-user, so getting the information on what table names would be in play is a bit of a process).
The version of Crystal we are running is: 11.0.0.1282, Crystal Standard.
Please let me know if I've left off any vital information needed to help with this query. I'll do my best to fill in any gaps I may have left here.

Hi Michael,
Raiser's Edge db is not ideally supported with Crystal Reports.However, what you may try as of now,is to upgrade the application to release 2 and then check for the results.
Following is the link:
http://resources.businessobjects.com/support/additional_downloads/service_packs/crystal_reports_en.asp#CRXIR2
Please choose the "Service Pack 2 - Full build - ZIP - 1.03 GB - released April 2007" hyperlink.
The same keycode will work for this version also.
Thanks
Prathamesh

Does Comcast Use My Computer to Cache Data for Wifi Guests?

Sometimes in the evening, between about 5:00 pm to about 10 pm, I get inexplicable lag spikes while playing my favorite online game. Trace-routes in both directions don't show anything of note. (The game developer has a tool that lets players trace from their game servers back to our computers, to help troubleshoot.) I know that nothing unexpected is running on my system because I have disabled virtually everything that I don't need in the Startup group; stuff like Windows Update, Java updater, etc., are all set to notify me of updates rather than download their stuff at random, and I have moved all of the recurring jobs in the Task Scheduler to do their work while I'm usually sleeping. (Same with my anti-virus updates and scans.) Therefore, nothing should be making my hard disk LED light up unexpectedly, nor should anything be creating connection latency (as indicated by a meter in my game) that I can't find the cause of (via my trace-routes.) After a great deal of checking and eliminating possible culprits (including component overheating, et al), about the only thing left to blame is the Comcast Xfinity Wireless Gateway. (1) Does anybody here know if this wifi system is caching user data on my hard drive? Comcast's customer support people sure as heck don't have a clue. (2) How about the bandwidth pipeline. What if a neighbor or two is accidentally connecting to my wifi instead of their own home network and downloading fappable movies while I'm trying to become the #1 hardcore barbarian in Sanctuary? If the data download transfer pipe is only so many megabytes wide, and I'm having to share that with the 2 folks mentioned above, plus 2 or 3 more doing heaven-knows-what, doesn't that make my own pipline thinner? Could that be causing the non-network lag that I'm seeing in the trace-routes? I realize that I can disable this service, but I think there's a bigger picture here. If, in fact, Comcast's Home Wifi system is impacting its home customers in the manner I seem to be impacted, they need to start disclosing that. Thank you in advance to anybody who can provide answers to my questions, but please don't guess if you don't know for sure. But if you're suffering the same problems I am, by all means, share your experience. My next step will be to turn the Wifi off during my gaming session for the next couple of nights to see if things change. I didn't even know I could turn it off until I got to these forums tonight. When I asked a Comcast rep shortly after receiving this new device, they told me "no," that the wifi could not be disabled.

Hello,The limits of the Copper aren't as minimal as you'd expect. Comcast usually runs Fiber on the Poles, then Copper to the Home. Copper Cable is able to achieve 1.25 Gbps. The Coaxial cables running to your modem take in 8 channels downstream and 4 channels upstream. This defines to a maximum of 38 Mbps download and 27 Mbps upload per channel. This means the maximum speed a Comcast Gateway can achieve is 304 Mbps download and 108 Mbps upload. Mind you can buy a modem compatible with Comcast that does 16 download channels and 4 upload channels or 608 Mbps download and 108 Mbps upstream. This could be higher, if signal is increased. However these are average. XfinityWiFi from what I've seen is 16 Mbps download and 3 Mbps upload. So the better question is, how many neighbors use your xfinitywifi? You should remember that you have Private Internet and xfinitywifi, your neighbors should have the Private Network and public network too. To answer another question, no software was put on your computer by Comcast for your modem, so no, it can't cache. Data caches locally to your computer, likewise the neighbor that is using your xfinitywifi is caching locally. The Gateway has no caching functionality. Your harddisk is constantly writing, Windows is sending data to it to update time, make sure it is still connected, and programs that may be open are still running.

3G vs WIFI vs EDGE

can someone explain the difference? this is my understanding.
wifi is the fastest, 3g next and att's edge slowest. all are data networks and have nothing to do with voice transmission
though one can use wifi via the internet to make calls.
wifi has a symbol that looks like radio waves transmitting....several
hemisperes that radiate out, sometimes with one blue, sometimes all three.
3G appears in a box when 3g is active, E appears in a box when edge is active.

can't give a techie response and only some simple input on my experiences...
first, 3G simply refers to "third generation" networking signal capability compared to previous wireless generations. Believe it or not, they are already working on a "4G" due out in another couple years or so... Not sure about "voice" quality not being better on one over the other... if you are getting a better signal being connected to 3G network... I would think your voice quality and signal would be impacted.. another techie question.
While I live in a supposedly, "very strong" 3G and EDGE geo rgn. I can be in my home and one minute have a good signal showing 3-4 bars, and 5-min later, lose my 3G signal all together without moving an inch... signal will continue to vacillate. So last evening opted to jump on my home wi-fi network at the opposite end of my house, and was able to maintain a very strong signal without vacillating signal strength. If your novice to your 3G phone, I also noted that when I do a "location" finder on myself on 3G network from my house, I am shown in "hybrid" mode as being located next door at my neighbor's house... whereas, as you might expect (so I thought) that jumping on my home wi-fi network that it was dead-on. Interesting thing was that when I did a gas station search on 3G network, I was a couple of buildings away from the actual gas station location... but when I went to my home wi-fi network, was again dead-on? I am sure a techie out there can explain that. I have also learned in my four days of owning my 3G iPhone that if you are able to plug-in a specific house # and street, you will be most likely to get a better read on your location.

Bit of Bandwidth data on WiFi vs Edge

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