My Phone Techs

Computers & Internet => Computers, Software & Accessories => Topic started by: hbiss on February 22, 2019, 03:40:25 PM

Title: iPhones not staying connected to WIFI
Post by: hbiss on February 22, 2019, 03:40:25 PM
So, here's the problem. Several months ago we had a power failure that, for some reason, wiped out my access point. I replaced it with a Cisco WAP371 which is the current dual band version of what was there. Ever since then (no problems before) I have been having intermittent problems with our iPhones connecting. Sometimes you can see them disconnect and reconnect but mostly they just won't connect and tell you that the password is incorrect. Only thing that helps is powering down the router, switch and AP then turning it on again. Then they connect for awhile.  We have laptops that are WIFI with no problems. Everything wired directly to the router has no problem either.

If you Google the problem with the iPhones it seems to be a common complaint with no real solution. It's suggested to shut down the network then repower but they admit that doing that in an office, hotel or airport isn't going to happen. So am I wasting my time? Is it just crap Apple stuff? Why wasn't this happening before?

I'm about to replace the AP again but then I'm wondering about the router (Cisco RVS4000) too. Arrrgh!

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MooreTel on February 23, 2019, 06:16:50 AM
If you had no problems before your access point got hit, why not buy another one of the same model, new or used?
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on February 23, 2019, 09:57:26 AM
I did replace it with a current version of the old one. I doubt that you would be able to find the old one, probably wouldn't want to either.

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on February 23, 2019, 05:06:14 PM
Hal, I can't tell you the number of times I've seen, no one else's phone has an issue with this access point, and this phone doens't have an issue with any other access point.  Some cards just don't like some APs.  You said it's a dual band.  Does it have two different SSIDs?  One of my techs had to limit his phone to one of our SSIDs due to drops.
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on February 23, 2019, 05:27:50 PM
Quote
You said it's a dual band.  Does it have two different SSIDs?  One of my techs had to limit his phone to one of our SSIDs due to drops.

Yes, two different SSIDs and that was the first thing I thought of so I shut down the 5GHZ. No difference. I don't think these iPhones will work with the 5GHZ band anyway because I don't see that SSID shown as a choice. Everything always used the 2.4GHZ radio.

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: telemarv on February 24, 2019, 10:12:59 PM
Try changing the channel on the AP.
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on February 25, 2019, 10:58:06 AM
Done that.

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on February 25, 2019, 11:38:43 AM
I was looking at Cisco APs last night.  Unfortunately Cisco products aren't all what they used to be.  Underpowered processors cause major issues.  Meraki wants you to get in bed with them and pay them alimony from now until eternity, Ubiquity can't do simple MAC filtering... It's getting to be a real pain to find anything that works in this Walmart world.  Sorry.  [/rant]

Hal these words very seldom come out of my mouth, but what about a firmware update?
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on February 25, 2019, 12:39:30 PM
It's up to date.

Next time this happens I'm going to unplug only the AP (it's POE) and see what happens when it gets powered up again. That's the only thing I haven't tried. That router is pretty old, I may just replace it on general principal even if it isn't causing a problem now. I have a feeling that even if I replace everything this is still going to happen.

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on February 25, 2019, 07:21:45 PM
The only other things I can think of off the top of my head are to forget and then reconnect the phone to the SSID, and reset the network settings on the phone.  That will reset all of them including bluetooth so you'll have to pair your headset again.  Wish I had a better suggestion. 
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on February 25, 2019, 09:40:46 PM
Saw those suggested when I Googled the problem. No dice. 

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on March 04, 2019, 06:51:40 PM
Update- I see it dropped the two iPhones here and my laptop, wanted the password. So I pulled the plug on the AP and reconnected it. Everything then connected. So it looks like the problem is the AP. I checked the firmware and saw that there was a new release in January so I upgraded. All good so far. lets see what happens.

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on March 04, 2019, 07:45:18 PM
Glad to hear that, Hal.  I was thinking that on previous Cisco products once you got to a "real" engineer they could pull something similar to DIMM logs and see what was happening.  Not sure if that's available on the units today.  Finding a good commercial grade AP is getting harder and harder.  I've heard a lot of noise lately about Cisco having weak signal strength and under powered processors.  When I went and looked at yours on Amazon I was seeing those same complaints. 

If you're integrating MAC Address Filtering (we do on ALL our APs) you might turn it off for testing.  I've had issues with that on under powered processors.
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on March 11, 2019, 03:48:33 PM
Well, that didn't work.

I was reading the reviews on this AP you were talking about Trace, if I had read them first I never would have purchased it. Some users talk about exactly this problem with iPhones and some Win computers. They say it should be recalled.

Anyway, I did see some IT guy who said he got results by changing the mode from 802.11a/n/ac down to the old slower 802.11b/g.

Any bets?

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on March 11, 2019, 07:02:14 PM

Any bets?

I have had luck in the past restricting everything down to 802.11b.  Fingers are crossed for you.

I ran into huge issues today with an AP.  I have GOT to find a good, enterprise grade AP and it just shouldn't be this hard, Hal.  Cisco is like Pioneer stereos going from the early days to the later crap. 
Title: Re: iPhones not staying connected to WIFI
Post by: hbiss on March 24, 2019, 05:23:11 PM
So far so good!

-Hal
Title: Re: iPhones not staying connected to WIFI
Post by: MacGyver on March 24, 2019, 06:06:46 PM
Great to hear, Hal.  :054: