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  #11  
Old March 19th, 2012, 03:01 AM
snofte snofte is offline
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Default Re: Trouble wndr4500 wlan & iphone

Quote:
Originally Posted by billshih1975 View Post
perhaps you can save the 1st and 2nd 4500 config file, then load #1 config to 2nd router and #2 config to 1st router. Then you can know if it's HW issue??
hehe, tried something similar:
router 1 set up as original config in router 2.
router 2 set up as original config in router 1

And the problem is the same, so its not a hardware issue.
Iphones wont connect with speed 450, connects ok with speed 217 !!!

regards
snofte
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  #12  
Old March 19th, 2012, 04:42 AM
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Default Re: Trouble wndr4500 wlan & iphone

https://discussions.apple.com/thread...art=0&tstart=0
this links main talks about time capsule (apple products)

Quote:
All windows-pcs run fine on the 4500.
An ipad also.
1 iphone also.
But 3 other iphones cannot connect

Anyway, which is actual iPhone version that connects?
you said there is 3 or 4 iPhones right.
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  #13  
Old March 20th, 2012, 05:09 AM
snofte snofte is offline
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Default Re: Trouble wndr4500 wlan & iphone

Problem solved (?):
switched the two netgear 4500, and problem is the same.
So its not a hw issue. Some iphones wont connect. So
I did a full test:
iphone 4 connects fine on speed up to 450 mbps,
wpa.psk(tkip)+wpa2.psk(aes).
Iphone 3 will NOT connect with same setup.
Iphone 3 will NOT connect with speed up to 54 mbps, tkip encryption
Iphone 3 connects ok with speed up to 217 mbps, no encryption.
Iphone 3 connects ok with speed up to 217 mbps, wpa2-psk(aes).
What does this tell us ?:
Iphones do not like speed setup for 5 ghz-band (450 mbps) (?)
Iphone 3 does not like tkip encryption. (?)
Iphones in general are not very compatible re wi-fi, some setups work
on some models, and not on other models.(?

Any comments ?

regards
snofte


I
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  #14  
Old March 20th, 2012, 10:08 AM
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Default Re: Trouble wndr4500 wlan & iphone

Quote:
Iphones do not like speed setup for 5 ghz-band (450 mbps) (?)
iPhone ONLY support 2.4G ..

Quote:
Iphone 3 does not like tkip encryption. (?)
AES are better encryption anyway I would not worried between TKIP vs AES

Quote:
Iphone 3 connects ok with speed up to 217 mbps, no encryption.
Iphone 3 connects ok with speed up to 217 mbps, wpa2-psk(aes).
I would say with old technology up to 300Mbps at most you will be dealing with .
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  #15  
Old March 20th, 2012, 10:10 AM
StratmanX StratmanX is offline
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Default Re: Trouble wndr4500 wlan & iphone

Good testing. Obviously some technological advances with the iPhone 4.

Seems like your best bet is 2.4 GHz band, Mode = up to 217 Mbps, and Security set to wpa2-psk(aes).

These are excellent parameters.
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  #16  
Old March 20th, 2012, 10:39 AM
snofte snofte is offline
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Default Re: Trouble wndr4500 wlan & iphone

Thanks all for comments. Allthough my problem now is solved with
mentioned settings, I never the less have a worry re bad compatibility
for the iphones. Suppose I try to link up with another wi-fi router
(lets say airport or cafe) with my iphone3, a router that is set up in way that will not connect to my iphone, and I am stuck. Can I be sure that I can
always connect to public wi-fi`s ? The answer now seems to be NO !
And thats not reasssuring.

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  #17  
Old March 20th, 2012, 10:47 AM
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Default Re: Trouble wndr4500 wlan & iphone

true hotspot do not use encryption base so if you go McDonalds, Starbucks etc that uses ATT base or other hospitality hotspot none uses encryption for a reason.

they control the by the portal and wireless controller will kick off user etc.

So if you go to so called public wifi and you need to use encryption is not a true hotspot anyway... some to remember.

on most cases WPA is highest that some hotspot uses a one other scenario.
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  #18  
Old March 20th, 2012, 09:57 PM
snofte snofte is offline
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Default Re: Trouble wndr4500 wlan & iphone

ok, so I should not worry to much re public wi-fi`s, they do not use
encryption. One last question the 4500:
the setting "wpa-psk(tkip) + wpa2-psk(aes)" which does NOT work
on the iphone3, whereas the setting "wpa-psk2(aes) DOES work:
Thought that the first setting implied that the the 4500 would try
first a tkip connection, and if not successfull, would try an aes connection.
Seems that I have misunderstood this, could someone pls explain ?

regards
snofte
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  #19  
Old March 21st, 2012, 01:31 AM
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Default Re: Trouble wndr4500 wlan & iphone

The setting "WPA-PSK [TKIP] + WPA2-PSK [AES]" allows your devices to use either 'WPA [TKIP]' or 'WPA2 [AES]'. I don't own a iPhone, but if I were to take a WAG, maybe the iPhone tries to use TKIP, doesn't like it and gives up after the first attempt. Besides, from your own tests and as others have already suggested, you don't need 'WPA [TKIP]'. Why not just use the better "WPA2-PSK [AES]" all by itself?

BTW1: I searched and found a recent iPhone 'User Guide' from December 2011 and thought I might include information on the amount of characters that can be used for WPA2 security. Expected WiFi words, such as AES, TKIP, WEP, WPA and others, do not exist in the document. In this regard, the 'User Guide' is useless. So I have no idea what the maximum Hexadecimal characters can be safely used in the iPhone for WPA2. Which leads me to....

BTW2: When you did your tests, did you use a temporary short and simple Passphrase in the router configuration? Using a couple characters can avoid typos when testing.

BTW3: Awhile back I read over at DSL Reports that some earlier iPhones where temperamental connecting to WiFi. IIRC, the reset procedure is:
  1. Disconnect the iPhone from the router.
  2. Delete the network setting.
  3. Disable WiFi in the iPhone.
  4. Reboot router and wait for modem sync (5 minutes).
  5. Enable WiFi in the iPhone.
  6. Try to connect the iPhone to the router.
Perhaps not owning a iPhone I'm preaching to the choir, but do you know about this "reset"? If applicable, have you try it?
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  #20  
Old March 21st, 2012, 01:10 PM
snofte snofte is offline
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Default Re: Trouble wndr4500 wlan & iphone

Thanks for all help and comments on this matter.
btw: I did use exactly the same passphrase in all tests, the routers
setup was not changed in this field.
My own conclusion after this very interesting discussion is as follows:

1.Iphones of different models do not behave in compatible manner,
a fact that is most disturbing.
2. Iphones boast of 802.11n speed, and seem to hide the fact
that they cannot support dual-band. In fact, when the netgear 4500
is configured to "up to 450 mbps", older iphone models fail to connect.
Furthermore, "true" 802.11n cannot be obtained on the iphones,
they operate only on the 2.4 ghz band.
3. Although public wi-fi`s for the most do not use encryption, thus
not creating problems for the iphones, a lot of older private routers
can create problems when configured to TKIP encryption
(as I have often seen). Think of visiting a friend with such a router, and
you cannot connect to his router with your iphone unless he changes his
router-setup !!

Summing up, iphones and wi-fi is a troublesome matter indeed !
Tanks again for all help, I have learned a lot, and have gained valuable
experience.

regards
snofte
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