OESF Portables Forum

Model Specific Forums => Cosmo Communicator => Cosmo Communicator - Android => Topic started by: novaldex on October 28, 2020, 05:27:28 am

Title: WiFi data unstable while roaming
Post by: novaldex on October 28, 2020, 05:27:28 am

Okay, this may be a few different things put together.

I am currently roaming, ie. not on my home mobile provider.
I try to keep mobile data disabled when I don't need it
I have access to WiFi in my room, but for some reason the connection is unstable & usually only last 30-60 seconds. Disabling & enabling again restores the connection for a similar amount of time.
I have access to a couple of other devices, and for these WiFi works fine, no question. They are not as useful as my Cosmo however
WiFi is 'N', seems to be a fairly aged LinkSys AP that I have no access to.

Any suggestions please?

Title: Re: WiFi data unstable while roaming
Post by: novaldex on October 28, 2020, 06:22:39 am

Observations:

WiFi is still connected all the time, but it seems to be DNS that gives up
Today I have a different IP to yesterday
Private DNS is off, i've tried automatic & setting manually to cloudflare. Which didn't work at first as DNS wasn't working & it couldn't connect. Catch 22? Once configured it didn't seem to resolve anything
Back to off & i'm back to where I was before

Title: Re: WiFi data unstable while roaming
Post by: Varti on October 28, 2020, 06:24:36 am

A couple of questions to better understand the issue:

- do you have the same issue if mobile data is enabled?
- have you tried with other Wifi networks as well?

Varti

Title: Re: WiFi data unstable while roaming
Post by: novaldex on October 28, 2020, 04:30:55 pm

Hey,

Yes, problem still exists regardless of whether mobile data is enabled or not.

And yes, i've tried other WiFi networks now (I hadn't found one before) and they too seem okay with no apparent issues.

First time i've roamed with it (and certainly since receiving it back from Planet after repairs), so quite puzzling

Title: Re: WiFi data unstable while roaming
Post by: novaldex on October 30, 2020, 08:16:02 am

You know, i'm just going to say this particular WiFi connection isn't the best.

I've started to see similar issues on other devices, so happy it's the AP device, or beyond, that is the issue. The WiFi actually stays up all the time, but somewhere things aren't working the way they should, most common issue i've seen is DNS does not resolve.

Title: Re: WiFi data unstable while roaming
Post by: novaldex on November 02, 2020, 12:53:25 pm

Last day of arguing with this WiFi & trying to download a several hundred MB file with rsync.

I managed to get a couple of MB each time, reset WiFi, resume transfer, etc.

Then one time I figured, my Bluetooth is on yet I know i've got nothing connected to it. To save a bit of battery, I turn it off.

Now i'm getting a consistent minimum of 1MB/s & no interruptions. Did the remaining 500MB of that file in 7mins

Why? No idea.. But it worked