If you can connect in your home's wifi just fine and in other places not, while other phones would connect, the problem is in your phone. most probably with your phone's reception. In your home, there is no problem because the signal is good, but in other places there is because the wifi host is maybe far from you. It can also be due to the fact that the wifi you are connecting into is not recognized by your phone, try to create a network connection with these wifi connections to be recognized by your comouter, to do this, check this link for a guide and steps
Internet mobile connection problem android | Techyv.com
I wish to offer several "other" possibilities for solutions, which point not to the phone but to older routers, old firmware and to different WIFI protocols as the culpret.
Many of the WIFI connectivity problems seen on our forums and elsewhere can be traced back to older routers with outdated firmware. Just like our computers and even our phones, routers also often require updates to their firmware to address known problems that affect connectivity, stability and speed, as well as quality of data transfers, and to better follow newer protocols. Some examples of this have proven the solution for users whose older phones would connect successfully to their trusty old router but the newer phones had problems.
It's easy to blame the new guy (i.e. new phone), on the block, after all, "things were fine until he showed up!" Well, in fact it's often the new guy, following the newer standards of particular protocols, or more closely following older standards that quickly reveals the shortcomings of the older equipment which either didn't follow protocol properly to begin with, or doesn't know how to manage communications with the newer, more versatile equipment.
Also as mentioned above, it can be the authentication for one or another security protocol. Furthermore, as also mentioned it can work with the protocol on one router but have a problem with another version of even the same router.
Many manufacturers take shortcuts to reduce manufacturing costs and increase profits. One way to cut costs is to use open source code for all or part of their device's firmware, thereby eliminating any licensing costs or cost of development to have programmers write it for them. This often times results in fragmented code that doesn't work well with equipment running with more strictly written licensed code, ending in some equipment working fine while others fail. Major manufacturers such as Motorola for instance, will avoid using fragmented open source code "snippets", instead coding to adhere to the strict guidelines of licensed protocols and standards. This means their equipment may be less accepting of the sloppy coding of the older routers.
To be sure your older router is giving the new guy a fair chance, visit your router manufacturer's website and check for updated firmware. Better than 70% of the time when I troubleshoot a connectivity issue with routers, I find that the firmware is outdated, and often by several generations of updates since they are usually still running the off-the-shelf firmware. Unfortunately at times that isn't enough to resolve the problem.
Sometimes in an attempt to be compatible with current and upcoming protocols, manufacturers will rush their product to market with a mish mash of code thrown together to work with the new protocol, even if it doesn't work well or follow the guidelines closely. This is most common with off-brand equipment manufactured in places like China. This will result in a newer device such as our phones trying to connect to the routers with poorly written code for the new protocol, when the same phone and router may talk quite nicely with an older protocol also on the same router.
In one recent example of this a member whose phone kept dropping connection to her B/G router decided to see what would happen if she set the router to B Only. Sure enough, the phone connected perfectly and all the connectivity problems went away.
Lastly, sometimes the compatibility issues are too great for the old and new equipment to play nicely and it's time to put the "old gray mare" out to pasture. Wireless routers manufactured today are faster, more reliable, and compatible with both old protocols and the new protocols of today that routers just a few years old may completely fail with. They also have better radios, better antennas, and more features for support of things like streaming of audio and video, and even connections to things like NAS and USB drives. The good thing is the cost of the newer routers is also less than what you likely paid for the one you have now.
In many cases doing nothing other than replacing an old router with a new one fixes all the problems being experienced. So before you give up on the phone and conclude that the new guy is the root of the problem, step back a moment and ask yourself if the router is up to date with firmware, is running the newer protocols properly, or if it may be time to bring all the equipment on the data path up to the same level of technology as your brand new, cutting edge phone.
FoxKat
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