I have an Samsung Galaxy Tab S2 8.0 It's up to date with everything.
Up until just now, I've never had a problem connecting external storage devices to my tablet using an OTG cable. Earlier today, it worked fine.
Later, I tried to connect a device but it wouldn't mount. I tried a second cable. I then tried a different USB storage device. No luck. I tried rebooting the tablet. No luck. (One of the devices asks if I want to connect and that came on for a second then disappeared. Since then no luck with anything.)
This happened once before and by blowing air into the micro usb port I must have dislodged some dust and it worked. I tried that again but no luck.
The SD card in the SD card slot is working fine.
To recap, I have tried:
Three different OTG cables
Two different USB storage devices
Resart, Turn on and Off, Soft Reset of the tablet.
OTG troubleshooter isn't finding any OTG even when physically connected.
Any ideas on how to fix this?