WiFi Connection Detection with J2ME

Does anybody know how to detect the WiFi connection with J2ME? In fact i should ask that question = Is it possible ?
I guess it is not possible but i need further help....
A. Cansever

Describe your network; router, make and model, network security setting...
Good read:
http://www.wi-fiplanet.com/tutorials/7-tips-to-increase-wi-fi-performance.html

Similar Messages

Any wifi connection problems with new Macbook Pro 13" models?

I currently use a 15" Macbook Pro (about 3.5 years old) that has intermittent WiFi connection issues (intermittently loses signal). This seems to have been a very common problem with this laptop model. My kids, who use Macbooks, have no connection problems. In any case, I'd love to buy one of the new model 13-inch Macbook Pro's but hesitate because of my many issues with WiFi connectivity on my older Macbook Pro. Just wondering if anyone is experiencing connectivity problems with the new model?

I've never had Wifi connection problems with a Macbook and now with the 13" MacBook Pro I was flabergasted when I took my MacBook down the street to a coffee house with free WiFi. I went to connect to their WiFi and found my own WiFi connection listed. I thought this odd even though I was on the same block as my apartment, my apartment is six stories up. I connected to the Coffee Shop WiFi but it was really slow so I wondered if I could connect to my own home connection. I switched it over and lo-and behold I did connect! It was a good 300 feet away! I NEVER saw this with previously owned MacBooks including the black MacBook and the MacBook offered just before they moved the MacBook up to the Pro series.
So I'd say they have improved the WiFi nicely.

Wifi connection issues with Home Hub 5

Hi can any body help because I am starting to get very frustrated with the Home Hub 5 and it's wireless connection.
infinity 2 was installed at my house in the beginning of September, everything worked Ok for three weeks then for no apparent reason the hub kicked out all of my wireless devices (phones, kids iPods, tablets etc) at 6:45 one morning. When I got home from work I rang BT and was told to perform a Pin reset. This seemed to work but less tham 48 hours later at exactly the same time in the morning the hub kicked out all of my devices again, this time I just pressed the restart button on the top of the hub and everything reconnected but the Wifi range within my house had dropped. A few days later the hub kicked all my devices out again (each time it has done this the light on the hub has remained blue showing it is supposedly working OK)
One evening this week the hub of its own accord cycled through all the colours of lights indicating problems and that it was restarting. Today at 10:15 the hub kicked all my Wifi devices out again. I have contacted BT every time this has happened and told them about the poor range of the Wifi signal.
I do not want to be restarting/resetting my Hub every couple of weeks i need a permanent solution.
One of the reasons I switched from TalkTalk to BT when fibre became available was the fact that the Home Hub 5 was supposed to be the best provided router by any of the networks, being the only one that is an AC class router. The thing costs £130 if you want to by one. Quite frankly the £60 TP-Link dual band router I bought when I was with TalkTalk had a better range and was more stable. I would switch back to that if I knew BT's router settings (but they like to keep that a secret)
I really am beginning to regret switching from TalkTalk. Please someone restore my faith in BT.
Sorry for the lengthy rant but I hope you can understand why I've ranted for so long.
Nick

Hi imjolly
Sorry its taken a while to reply to your post.
I wanted to try BT's latest attempt at a solution before i tried your idea.
Since your reply the Home Hub 5 has dropped the Wifi connection to my devices another three times.
The second time less than 30hours after BT's so called fix, which was to make sure the 5Ghz channel was not syncing with the 2.4Ghz channel. Tonight it went again and BT's response was to take the router out of smart channel selection and manually select channel 9,6 or 11 on 2.4Ghz and 36,40,44 or 48 on 5Ghz. Well I havent even bothered with that, if the prats at BT would look at their records they would see they have already suggested that.
This HH5 is the most unreliable piece of garbage i have ever had the misfortune to use. WHY OH WHY did I leave TalkTalk
I have tonight tried your solution. Fingers crossed that this works.
Nick

Late 2013 15" Retina Macbook Pro - wifi connection timeout with one router

Hi,
I've recently purchased a new Macbook Pro retina 15 inch late 2013 model. Everything is fine at home, but at work I cannot connect to one wireless router (Netgear WAG102). The computer tries to connect but I get a connection timeout error after a few seconds for every attempt.
I have tried every suggestion for wifi issues that I can find on the forums, and have reset the router.
A colleague has also recently purchased the same computer except 13 inch model - he has exactly the same problem.
Any suggestions? I suspect given that two of us have the same problem that there is an incompatibility with the MBP and this particular router. I notice that there are quite a few discussions about similar issues with the macbook pro.

I too have a MBP Retina, 15", late 2013, and am having wifi connection issues. I've tried several fixes suggested on these discussions and by Apple. Nothing corrects the problem. I've been told it's my router, but I find that difficult to believe give that my wife has a MBP 13" 2012 (non retina), that has no issues at all, nor do our iPhones. It's just my MBP Retina.
My issue seems to be when waking from sleep, I lose the wifi connection. I have to turn wifi of then on again, and it reconnects. The only thing that corrects the problem for me is when I disable bluetooth. I have the magic mouse and it's basically useless becuase I need bluetooth on for it to work.
I find this to be an annoying problem. This is my first MacBook, and I really like it, but this wifi thing is bad. Never had this problem with my Windows machines.

Satellite M70-WiFi connection just with WEP or WPA

Hi,
I have the Satellite M70-164 with an Intel PRO set wifi adapter 2200BG with the latest driver.
My problem is that I can only connect to networks with security (with WEP or WPA), when I try to connect to "open" wifi networks the computer never establishes the conection, it says is "waiting for the network".
Any help will be appreciated.
Pedro

Hello Pedro
Try to use Restore Factory Default on your router settings and try again. I use WLAN for a long time and I have never heard about something similar but with Intel 2200 BG wireless card everything is possible. I have read many different topics about different issues with this card.
Bye

FTP connection possible with J2ME?

Hi all,
Does anybody if it is possible to make an FTP connection for a J2ME midlet (like you would make an http connection). If so, how can I do this and where could I find some information about this?
Kind regards

In MIDP 1.0, only HTTP support is required. With only HTTP, you could set up a custom proxy (which could be a Java servlet, CGI script, etc.) that does FTP on behalf of the client. So the client would make an HTTP request to, say, http://www.example.com/ftpProxy?url=ftp%3A%2F%2Fftp.example.com%2Ffoo%2Fbar, and the server-side ftpProxy program would fetch and return the specified FTP URL.
Some phones support raw sockets, in which case a proxy wouldn't be needed and you could implement FTP yourself (by reading the appropriate RFC). But this wouldn't be very portable as there are J2ME MIDP phones that only support HTTP.

Anyone else having repeated wifi connectivity issues with the OSX version 10.8.5?

I just updated the software on my iMac to OS X version 10.8.5. Now I am having repeated connectivity issues with the wifi in my house. This is the only device that is having these issues. My phone, ipad and tv are not having any problems at all.
It happened immediately following the update. I was sending emails and browsing before the update without a problem.
from apple:

I had a message like that last week - only it asked what browser I would be using - I just quit safari - purges caches etc - and at that time noticed I was getting RSS feeds through PUBSUB - tracking them down to the top sites view I never use - I deleted all of the top sites (most of which I don't go into so it must have been a preset) that included MSN and Google - I don't use google so that was pointless. (deleting a top site means you are blocking it from that page) Have not had the message since so it must have had something to do with top sites activity.
Just a note: Did see somewhere probably BBC tech - that Google was going to stop supporting older web browsers.

IOS 6 wifi connectivity problem with iPhone 4s

After recently updating both my iPad 3 and iPhone 4S to iOS 6, I began to have problems with my wifi connection on my iPhone. When trying to connect to my home wifi, the iPhone seems to connect but then brings up the "Log In" screen with an Apple website loaded saying the page cannot be found. However my iPad, again also recently updated to iOS 6, has no problem connecting to wifi. Has anyone else experienced this conflict and is Apple working to correct this? My router is a standard U-Verse "2 wire" device. I have performed all the quick fixes I could think of such as restarting the router, restarting my phone etc. please help!

I have a similar fault with my Lexus ct200h fsport, updated to ios 8.1.1 on my iphone4s 64, and the bluetooth sometimes disconnects during calls then re-connects again (by this time the person on the end has hung up) .but bluetooth audio works fine. very frustrating!!

Airport Express and connection/detection with IMAC and Printer

After switching to Airport express, I now need to serch for my wifi connection vice my imac detecting it. Also, I am unbale to set up(detect) my wireless printer (HP Photosmart C4580). Any thoughts? Thanks!!

This combination SHOULD work but it often does not. I have replaced several base routers from non-Airport to Airport and resolved issues like this - USB printers, AirPlay issues, etc. Its the only way I know how to make it work, sorry.
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP

Wifi Connectivity issues with a 2008 Apple Macbook

Hi I have had BT Total Broadband for 14 months with constant issues in relation to the Wifi connectivity on my Apple Macbook. I got Infinity installed and am still having the same issues. Other devices - Iphone and Ipad - work fine but the Macbook only works in one room of my house. I have had the Macbook checked and there are now issues technically with it according to the diagnostic team at the Apple store. I have tried changing channels and nothing like this is helping. BT are insisting I have to pay a cancellation charge of £159 to cancel my Infinity - even though it was only installed on Friday.
The engineer installed the modem and BT Homehub 3.0 router at my main socket into the house which is in an understairs cupboard - the modem and hub are now sitting on the floor!!!! I have been advised that this won't be helping the signal. As soon as I move from the living room to another room downstairs it drops and doesn't work at all upstairs.
I don't feel that there is any point in investing in an Airport Extreme as I have no guarantee that this will improve the level of service provided by BT.
I have also over the weekend tried different wifi networks outside of my house and it works fine on all of these including what is meant to be a less superior Sky Broadband service?
Does anyone have any ideas what else I can try - I have lodged a complaint with BT and am waiting on a repsonse at the moment.
thanks

Hi,
Long time Mac/Infinity user here.
Macs rarely have problems with their wifi, any problems that do occur are more often due to external issues, such as poor siting of the router, or co-channel interference from a neighbouring router. From your testing at the Apple Store and on other networks there is nothing obviously wrong with your machine.
Having the HH3 on the floor is just about the worst place you can site it. Generally you should position a wireless router as high up in the working area as possible; at least desk height is desirable. A very simple thing to try is borrow a longer Ethernet cable to go between the OpenReach Modem and the HH3 and then temporarily position the HH3 higher, say halfway up the stairs. There should be an immediate and noticeable improvement in the signal.
If matters do not improve, make sure that all the Apple Software Updates have been done (connect the MacBook with an Ethernet cable to do this if necessary). Next, completely delete the wireless setup on the Macbook for the HH3 (and any other old setups you may have) and complete the setup of the HH3 from scratch.
You may still find there is a lack of signal and this could be due to co-channel interference with another wifi router in your neighbourhood. Try manually switching the router onto Channel 13 as relatively few ISP's devices use this channel by default. Alternatively try Channel 1.
You can download a free WiFi "sniffer" called Kismac to check what channels are being used by other routers in your area.
To manage the hub, launch your browser of choice and enter 192.168.1.254 (DO NOT put http:// in front of this!) and press Enter. (The Hub Manager software is a PIA and should not be installed; use the CD as a coaster for your coffee cup!).
The Airport Extreme is a very good replacement for the HH3 and is far superior in terms of the WiFi signal. If you want to try one, order it on-line from the Apple Store . . . you can return it if it does not work as expected!

Why won't Apple fix the wifi connectivity problem with the iMac and new OS instead of just havin us go through hours of useless mock fixes!

I have spent hours with apple care about this problem with wifi connectivity. According to all the posts I'm not alone. I love my new IMAC
but i'll be glad to go back to my PC just so I can get my email without all the headaches. It seems that Apple has lost interest in
the IMAC and all of the problems associated with the new OS.

Keep in mind that ASC is where people go to get help, so yes, you are seeing reports of people who are having WiFi connection issues. But while it might seem like there are lots of people having trouble, given the sheer number of iMacs in use, it is a very small number. Also keep in mind that WiFi isn't totally under Apple's control. There are dozens of WiFi routers. Even worse, the manufacturers of WiFi routers often release firmware upgrades to fix flaws without ever informing the consumer. And just to add to the confusion, while WiFi 801.2 n routers have been sold for several years, for most of that time there was no agreed upon standard!
So if you'd like help, first, what router do you have and have you checked the vendor site to see that it has the latest firmware?

TS1398 Has anyone had WiFi connectivity issues with their iPhone 5 after accepting the latest IOS 8.0.2?

Has anyone had WiFi connectivity issues at home with their iPhone 5 after accepting the recent IOS 8.0.2 update?

Yes, despite being it an iPhone5 (8.0.2) attempting to connect to an Airport Express.
In my case the iPhone "connects" to Airport Express 2nd generation, but no Internet packages are available; Airport Utility shows the Airport Express as not connected to the Internet; but the iMac, MBP, Motorola phone, Samsung Smart TV and HP printer connect without any trouble.
The actual issue is the DHCP :
sometimes the iPhone gets none, and
when an address is assigned it just doesn't work,
even renewing the address won't work all the times,
switching off and on the WiFi won't work all the times neither,
going on Airplane mode, then back won't work all the times.
Solutions attempted and failed:
Reseting and reconfiguring Airport Express;
Reseting iPhone;
Switching off and on the iPhone;
Setup the DHCP renewal for every 5 days;
Meditation and stark visualisation;
Other possible patch not yet attempted : setting fixed IP addresses
All suggestions received resemble Windows' "Plug & Pray"
I gave up after reading several notes around the WWW complaining about it.
Last credible suggestion : wait for 8.0.3 or 8.1, whichever fixes the issue first.

Wifi connection intermittent with ipad... but fine with my other devices

wifi is working with my laptops, pc and smartphones. however, for some reason the two ipads would get intermittent connections and drop off very frequently. any ideas?

Others have posted similar reports on the forums. What kind of router do you have? What version of iOS is on your iPad? Did you always have these issues? When did they start?
I also have the connectivity problem between my Cisco WRVS4400N router and my iPad. My issues began immediately upon upgrading to iOS 4.2.1.
I've tried many (if not all) of the suggestions posted on the various threads in the forum. In the end I found exactly two router settings that made any difference.
1. Changing my router channel bandwidth from 20 mHz/40 mHz to 20 mHz caused a significant improvement in my iPad's network throughput. It nearly doubled as tested using the speedtest.net app available for download. +This did not, however have any effect on the connection drops.+
2. Changing my WPA2 key renewal interval from the default of 3600 seconds to 99999 seconds reduced the number of drop outs from "frequently" to 1 or 2 times a day. So it's not fixed, but reduced to the point of being tollerable instead of infuriating.
My opinion on the matter is that some part of the handshake that the WPA specification says must occur during a key renewal is failing. Since every other device I own works correcty--and even the iPad did prior to the upgrade, I assume this means that the problem lies on the iPad side, and not with my router. However short of putting my iPad and router into a faraday cage and analyzing the wireless traffic between them, I cannot confirm this.
The only suggestion I have had from apple support (and one you will see made frequently here) is to take my iPad to some unsecure wireless network and test it there. Which, of course, doesn't exercise the key renewal problem suggested above.
You should first contatct apple support and let them know you are having trouble. Have as much information as possible, and mention that others online are having similar issues.
Then, if they cannot help you, you can start with the suggestions here and in other threads.
Good luck.

Wifi connection issue with mini Ipad

Hi,
Problem with the new mini ipad. wifi connection is fine but when accesssing online streaming TV sites, it is constantly disconnect itself and have to reconnect to the site before I coujld stream it again.
I have other devices connected to the same router fine without any issue.
Ipad works fine with the same site and connection
laptops work fine.
iphones work fine
only the mini ipad is not.
took to Genius bar, nothing much was done. Called support line, waited hrs for someone to tell me to make apt with Genius bar.
This has becoming very annoying and disappoiting with Apple products since Steve J is gone.
any help is greatly appreciate it.
Regards,

Try #5.
Some things to try first:
1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
4. Go into your router security settings and change from WEP to WPA with AES.
5. Renew IP Address: (especially if you are droping internet connection)
    •    Launch Settings app
    •    Tap on Wi-Fi
    •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
    •    In the window that opens, tap on the Renew Lease button
~~~~~~~~~~~~~~~~~~~~~~~~~
iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

My Wifi Connection drops with no reason

It is really often that my Mac Book Pro with Retina Display to loss the connection, It simply stop working, although the Wifi icon it shows the connection is still working.
I have discarded a router issue, since my other devices works perfectly.
I solve this issue by turning off and back on the wifi, but it is really annoying
Does anyone knows how to solve this, or If is this happening with all Mac Book Pro's (Retina)?

The wifi connection means you are connected to your router. Try changing the channel. Try setting up WPA2 security protocol.

WiFi Connection Detection with J2ME

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