I have 2x USB modems inside a Server 2008R2 instance for remote connectivity to customers. After upgrading to esxi 6.5, I can still see the USB modems inside the VM and inside the OS displaying as connected but when attemping to dial out it fails and throws a windows based 'modem hardware failed to respond' error even though i know the HW is fine
Interestingly I built a Server 2012R2 and a Server 2016 instance. Same problem on Server 2012 but works on 2016?
Unfortunately Server 2016 is having major performance issues on my 6.5 and besides this due to legacy software I have to keep this inside Server 2008. Any help greatly appreciated.
Have tried all the obvious first steps like
-rebooting host
-rebooting USB devices