Very wierd problem with iphone 4s and wifi network

[hakuna-matata]

Hi guyz, i got a wierd issue with wifi connectivity to iphone 4s. I am able to connect via wifi, run internet on safari and able to browse app store but whenever i download any app, it gives me error "unable to download app"..At the same instant, if i switch my wifi off and try it using 3g network, it gets downloaded and without any error if i download any other app.

I am having same problem while installing cydia packages and even normal browsing on safari sometimes. Anybody experienced this before? I am guessing the problem is with my router settings coz earlier i was able to download apps.

I have upgraded my wifi router to latest firmware. i have the following router.

http://www.beetel.in/business-solutions/international-business/adsl/450-four-port-wifi-modem

Following are the "internet'' and ''wireless'' settings (192.168.1.1 --> interface setup--> )set by ISP. THANX

 

[696092]

I've had the same issue for a while on ios 5 and still present on ios 6. Tried deleting wifi network and re-adding. Also I noticed it only happens if I'm updating more than one app and if I flick airplane mode on and off and retry it tends to work or if I wait for a few minutes it works. I think it's a wider spread problem as I saw a post on here a few months ago but it seemed to be deleted before anyone else reponded.

 

[Gav2k]

I've only ever had this issue when my network channel was clashing with someone else's

 

[noteple]

Only had this problem with WPA TKIP

Since switching to WPA2 and AES haven't seen it again

Your mileage may vary

 

[a13x4nd3r]

hey man.. i have the exact same router interface as you..

i use wpa2-psk with TKIP/AES encryption and not a single problem ever occurred to me

 

[hakuna-matata]

hey man.. i have the exact same router interface as you..

i use wpa2-psk with TKIP/AES encryption and not a single problem ever occurred to me

Lots of thanx guyz. I am gonna switch to wpa2-psk and AES but it's kind of greyed-out, so i might have to restore it to factory settings first. I had already tried to troubleshoot via instructions given on apple disscussion forum. If i am able to solve this issue. i would post my comment here so as to help others as it seems i am not the only person having this prob..thanx