I have problems while transferring files from an USB external HDD or USB flash drive connected on the new RPi 3B+ to another computer via SFTP or samba. After a random amount of data transfered, the transfer rate drop to 0 and stay like that for at least 30 min ( I canceled the transfer after that time).
I cannot see any error on the standard raspbian system logs. I am running raspbian stretch with the last updates, I also did a firmware upgrade with rpi-update.
The RPi 3B+ is powered with an official raspberry power supply (2.5A) and I tried with a spare one.
I tried to give more power with an external power supply for the USB HDD without any change, but like I got the same problem with an USB flash drive, I don't expect a power issue or ?
I tried to transfer files with thunar, pcmanfm, scp or rsync. rsync is the only one working, but with a strong fluctuation of the transfer rate (from 0 to 20Mo/s). scp tell me that the file is "stalled" and stop any progress.
If I start the same SD card with a RPi 3B (not plus) the file transfer is working like a charm ( I used it for almost 3 years like that).
I followed tips from this link without success.
I having no problems during ssh sessions or with vnc.
Any ideas ?
edit : thanks Jamesh : I submitted an issue on the Linux github projet : issue 2449