As above,I set my destination through my Samsung S20 with AA using Google maps,via the USB port. The wire is fine.

It's recently randomly started disconnecting as I'm driving.

I can't start trying to fix it while I'm driving,but when I stop,leave the  car and come back it fires up again.

At first I thought it was just because I'm in a bad signal area but no it still happens.

It's a 2018 Fabia with a Bolero unit.

Anyone else had this problem?

I'd male sure you are using the original Samsung USB cable.  Not all USB cables are built the same. I've had a similar.pronlem and the connection at the.mobile was the.problem.  also had the.mobile.on passenger seat so as I drove it.moved alightly

Thanks for that,do you happen to know if Samsung make a short cable?

 

I find it impossible to pin down AA issues and whether disconnection faults lie with the AA software, the mobile hardware/software, or the infotainment hardware/software.

 

I only ever use the original Samsung cable if I wish to plug in, and it works 99% of the time. I do get the odd disconnect still though. Advice online about cleaning usb sockets or plugs os absolute tosh, utter utter tosh. IT connections will continue to operate in even the most dire circumstances, it isn't fluff causing these problems.

 

Where I always face issues is using wireless AA. It connects automatically, so no issues with signal when entering the car, but some days I can drive 2hrs and not disconnect from wireless even once, other days it will disconnect two minutes after puling away.

 

I have always kept my mobile in the armrest holder thing (in the middle behind the gearbox). This weekend I tried putting it in the sliding compartment in front of the gearstick, and the wireless connection worked without fault. 

 

I do need to repeat this many times before I can say that it is a fix for wireless use however.

 

But if it is a fix, does that mean that the infotainment's bluetooth and wifi reach is so weak that it will keep losing wireless connection if the phone is in the central armrest? Either that or the armrest is lined with lead?!

 

It isn't just wireless though, as I say I have lost connection via a perfectly functioning Samsung USB as well. Trust me, the cable is 100% genuine and 100% works.

 

I have been through all the nonsense with Samsung and also AA support and done everything they have suggested, none of it makes any difference.

 

But is it the phone, AA, the car? 

 

Who knows.

35 minutes ago, Gax said:

Advice online about cleaning usb sockets or plugs os absolute tosh, utter utter tosh. IT connections will continue to operate in even the most dire circumstances, it isn't fluff causing these problems.

 

That's certainly not been the case for me...

 

 

 

I've had sufficient build up of fluff in the USB-c port of my Pixel 5 that AA became unreliable. It once got so bad it wouldn't charge... I had to get a plastic ziptie, trim it to a point and tease the compressed fluff out of the USB-c port 😆

 

 

No need for a Samsung branded cable, any decent quality cable should be fine. Personally, I'm a fan of Anker cables as they seem to work well for me.

 

 

Bit of a sort-of update on this...

 

I've come to realise that it isn't Android Auto disconnecting, it is the entire phone....or head unit.

 

By way of explanation:

 

As I am always driving the car and thus paying attention to driving, I'd never realised until a few weeks ago that sometimes AA stays connected, but the totally seperate bluetooth handsfree function has disconnected.

 

I know this because the headunit displays a message along the lines of "Gax's handsfree device has disconnected". It includes three letters in the message though, HRP, or HTP or something - it may mean something to someone.

 

I think the issue may therefore be to do with the heas unit bluetooth or the phone's bluetooth, or both in combination.

 

How to determine this conclusively and work out a fix...I don't know.