Solved
Forum Discussion
Youssef_Ghorba1
Mar 19, 2020Altostratus
We engaged with support and a matter of fact it's a known issue :
https://cdn.f5.com/product/bugtracker/ID756540.html
Still no permananet fix, but a workaround :
tmsh delete ltm profile ramcache all
It works perfectly and connections start to flow again!