Unable to connect to DeX or Android auto via USB connection

[sandind]

After the recent upgrade in Sep 2021, My S21 is not recognized when connected via USB to either Android Auto or DeX. Is this an issue with the recent security patch? Did someone else have this issue or is it just one off phone issue? Any pointers?

[ChloeO]

I have the s21+ and it still works fine with my android auto. Can't comment on DeX as I don't use it.

[Starlight69]

I have S20+ 5G and just discovered I'm having the same problem

[Starlight69]

Although only DeX not working.

[sandind]

Just an update. with the recent Android update this morning, the DEX connection started working again.