either since I upgraded from a FritzBox 7490 to 7590 or since I did a Macrium Update, i get I/O Errors when doing Disk Imaging or File&Folder Backups.
FritzBox 7590 with attached 2,5" HDD as a NAS
Thinkpad T460s connected via 5GHz WLAN to FritzBox
Macrium Backup via SMB Share to FritzBox
Fulls have I/O Errors, Incrementals work mostly (I believe because they are smaller).
Also very strange is that the Backup speed (Disk Imaging or File&Folder Backups) at first is as it sould be (15 MB/s, limited by FritzBox) but then after a few minutes drops gradually to 2 MB/s and then eventually ends with I/O Error. I'm not sure if this is a new behaviour or connected with the Errors.
To check the WLAN I connected the Notebook via LAN, but the speed drops as well. But I was able to perform a Full Disk Image of the Notebooks SSD without I/O Error. At the moment I'm testing the File&Folder Backup via LAN. What I can say by now is that the speed drops as well. If there will be I/O Error I will see in a couple of hours
Another test was to copy a Large file to the FritzBox Network drive via WLAN. This works flawlessly, no Error and no speed drop.
I don't know what else to do or where the problem may be located.
Grateful for any help!