Hello,
Does connecting to these servers via RDP only happen from the internal LAN or is it from outside? Use vpn? Is your firewall config configured as specified here?
1)check rb5009 packet loss... /tool ping 8.8.8.8 interval=100ms. And also ping the ESXi host:/tool ping 192.168.x.x interval=100ms
2)Check interface error - /interface ethernet print stats
- Check ESXi host performance, During a freeze, look for: CPU Ready time, storage latency, datastore latency,ballooning or swapping. Important ESXi metrics: CPU Ready > 5–10%,Disk latency > 20 ms, Storage spikes every few minutes..
A storage subsystem pausing for several seconds can make RDP appear frozen while the TCP connection remains alive.
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Duplex and speed mismatches, verify the ESXi uplink: /interface ethernet monitor etherX :1G full duplex?
10G full duplex? no renegotiations
If the interface occasionally renegotiates, RDP freezes of several seconds are very common. -
the probability ranking would be approximately: ESXi storage or CPU pauses, Physical network problem (errors, STP, switch issue), MikroTik FastTrack/queue/VPN interaction, and - ISP packet loss (if users connect remotely).