SGMON log from Backup Exec Server shows below entries against remote agent while browsing Hyper-V host.
BEREMOTE: [Date and Time] [fsys\shared] - Attach to VRTSRV::\\HYPER-VSERVER\Hyper-V?Guest?Folder
BEREMOTE: [Date and Time] [dsss] + dsserver.cpp (437):
BEREMOTE: [Date and Time] [dsss] | DS enum handle: 00000000116B82A0(00000000731AE7F0) opened under parent session 00000000086E7760.
BEREMOTE: [Date and Time] [ndmp] + ndmp_comm.cpp (513):
BEREMOTE: [Date and Time] [ndmp] | Failed to find nrds XML in NRDS cache map!
BEREMOTE: [Date and Time] [ndmp] + ndmp_comm.cpp (531):
BEREMOTE: [Date and Time] [ndmp] | NRDS XML empty!
BEREMOTE: [Date and Time] [dsss] + dsdlenum.cpp (1013):
BEREMOTE: [Date and Time] [dsss] | No more devices
BEREMOTE: [Date and Time] [dsss] + rpcdssession.cpp (1101):
BEREMOTE: [Date and Time] [dsss] | ERROR: Begin failed!
Install the English Language Pack on Media server and Hyper-V host and reboot it.