IO540
21st Aug 2011, 11:20
I wonder if anybody has seen this in the UK.
We have an Iphone4 (brand new, after being replaced by Apple after GSM stopped working on incoming calls) and a brand new Ipad2/3G.
On both devices, and also the original Iphone4, we have persistently found
1) Poor transition between GPRS/3G and WIFI. It is not good in making up its mind which to use, so often there is no connectivity at all. I strongly suspect that Apple are up to their (admitted) trick of showing the GSM signal level higher than it actually is, and anything below 3 bars does not actually deliver GPRS/3G connectivity, but it does cause the phone to not use WIFI.
2) Lockup of WIFI if there are two access points in close range, one being WPA/PSK and the other WEP, both encrypted and both configured on the phone. Individually it can use them OK, but if both are on, the phone sees neither, and sees nothing even when the WEP one is turned off, until you turn it off and on again and having turned off the WEP one, and then it again works on the WPA one. The WEP is a Linksys WRT54GC and the WPA one is a Draytek 2900G.
3) Sometimes there is no GPRS/3G connectivity despite a "full" signal. I am talking about T-Mobile, middle of Brighton.
I can find clues to the above issues on google but never to any depth or a result. All the Apple forums and newsgroups have resident Apple church devotees who slag off anybody posting on this stuff, but it is real enough.
I have never seen such issues with any other device, and I have a whole pile of this junk - except a recently bought £50 Netgear WIFI to ethernet bridge which does not work with the Draytek WIFI at all.
Incidentally, the Ipad2 GPS is crap for airborne use. It picks up a signal OK if powered on while already at ~140kt (which not every GPS does) but it is also liable to just lose it, and the rubbishy dumbed-down/crippled Iphone version of Memory Map (why are IOS versions of these otherwise usable apps so crippled?) gives you no indication that this has happened - until it becomes obvious that you have not moved for a while :) An external (bluetooth) GPS is definitely called for... but most of the existing standard NMEA ones don't work with Apple devices.
We have an Iphone4 (brand new, after being replaced by Apple after GSM stopped working on incoming calls) and a brand new Ipad2/3G.
On both devices, and also the original Iphone4, we have persistently found
1) Poor transition between GPRS/3G and WIFI. It is not good in making up its mind which to use, so often there is no connectivity at all. I strongly suspect that Apple are up to their (admitted) trick of showing the GSM signal level higher than it actually is, and anything below 3 bars does not actually deliver GPRS/3G connectivity, but it does cause the phone to not use WIFI.
2) Lockup of WIFI if there are two access points in close range, one being WPA/PSK and the other WEP, both encrypted and both configured on the phone. Individually it can use them OK, but if both are on, the phone sees neither, and sees nothing even when the WEP one is turned off, until you turn it off and on again and having turned off the WEP one, and then it again works on the WPA one. The WEP is a Linksys WRT54GC and the WPA one is a Draytek 2900G.
3) Sometimes there is no GPRS/3G connectivity despite a "full" signal. I am talking about T-Mobile, middle of Brighton.
I can find clues to the above issues on google but never to any depth or a result. All the Apple forums and newsgroups have resident Apple church devotees who slag off anybody posting on this stuff, but it is real enough.
I have never seen such issues with any other device, and I have a whole pile of this junk - except a recently bought £50 Netgear WIFI to ethernet bridge which does not work with the Draytek WIFI at all.
Incidentally, the Ipad2 GPS is crap for airborne use. It picks up a signal OK if powered on while already at ~140kt (which not every GPS does) but it is also liable to just lose it, and the rubbishy dumbed-down/crippled Iphone version of Memory Map (why are IOS versions of these otherwise usable apps so crippled?) gives you no indication that this has happened - until it becomes obvious that you have not moved for a while :) An external (bluetooth) GPS is definitely called for... but most of the existing standard NMEA ones don't work with Apple devices.