Kitz Forum

Computers & Hardware => Apple Related => Topic started by: Weaver on August 17, 2016, 08:56:37 AM

Title: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 17, 2016, 08:56:37 AM

See
    http://www.revk.uk/2016/08/iphone-wifi-roaming-and-dhcp-issues.html

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Dray on August 17, 2016, 09:41:20 AM

I don't see this problem roaming across multiple HH5's configured as WAPs on my network. Both my iPhone and iPad roam fine.

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 17, 2016, 10:00:00 AM

@Dray - your HH5s are all configured with the same SSID?

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Dray on August 17, 2016, 10:04:25 AM

Yes. It roams successfully even during a call. I think there's something wrong with his network as I can't see why the IP address would change.

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 17, 2016, 10:26:52 AM

If you also read the earlier posts on his blog on this same subject, he seems pretty convinced, with good reason IMHO, that it's an iOS bug. RevK is a programming and networking god as well, for example, he's written a lot of the code that goes into the Firebrick family of routers, so he really knows his stuff.

There's absolutely no reason why DHCP should be coming into it, and I don't think it even issues a DHCP request iirc. The iOS device simply dumps it's IPv4 address (IPv6 is ok).

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Dray on August 17, 2016, 10:33:21 AM

I've heard AAISP described as "a strange company run in a strange way by a strange man" :)

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 17, 2016, 10:38:08 AM

Sounds fair enough.  :D Luckily we all have plenty of choices of ISP.  ;D

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 20, 2016, 10:13:09 AM

UPDATE: bugs on both sides, iOS bugs still, but also behaviour provisionally fixed by a Ubiquiti WAP firmware update: see
    http://www.revk.uk/2016/08/maybe-it-was-unifi-after-all.html

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Dray on August 20, 2016, 10:53:38 AM

hahaha

Title: Re: iOS bug: Wi-fi : Loss of IPv4 address when roaming between WAPs with same SSID
Post by: Weaver on August 20, 2016, 05:46:49 PM

This is good news, although I'm spent up at the moment (August being a very lean time and we've spent far too much on house building works), I've been lusting after some of that Ubiquiti kit. And I know I will be able to get lots of support for it, in my groggy state, which I will need. So I can dare buy some next year.