Don't know if this will help but have you read this?
https://support.hpe.com/hpsc/doc/public ... -c00653544
What's new in 6.40.8 (2018-Apr-23 11:34):
!) winbox - fixed vulnerability that allowed to gain access to an unsecured router;
You need Winbox 3.14Big problem...
Updated Mys CCR (to 6,43rc27) an now stucked outside! All is running but cant connect - wrong username or password??? A bit of PANIC!!!
Sorry! Had two winbox on my pc!! Just need new winbox! Sorry!
I have updated two 3011 without issues. My guess is netinstall for you.Install and upgrade via packages menu option crashed my 3011. Anyone else have issues. Now in constant boot loop. Cannot launch kernel. Any recommended next steps ?
Might solve this issue for you.What's new in 6.41 (2017-Dec-22 11:55):
*) arm - minor improvements on CPU load distribution for RB1100 series devices