Good afternoon everyone!
I tell you my problem and my scenario set up.
I have a site to site VPN between a Wachtguard Firewall and a Mikrotik Hex Router, connected without problems via IKEv1 in tunnel mode with IPSec in Tunnel mode.
The ping from the Mikrotik subnet --> towards the Watchguard Firewall subnet is executed correctly with a constant speed of 28 ms without interruptions TTL=126
The problem I have is when I connect via Remote Desktop from the Mikrotik headquarters to the server where the Watchguard Firewall is located.
The speed is very very slow, and the connection quality is poor. Disconnects from set slow.
I have tried to configure with IKEv2 in a way with another encryption protocol in PHASE1 and PHASE2 with identical results.
Also to rule out, I have configured with Firewall Wachguard headquarters A and remote headquarters B and the RDP connection is established correctly and smoothly.
I have increased the UDP connection tracking time to 20 seconds, but with identical results.
OS version is 6.49.7
I'm new to MIkrotik and I can't find any clue that I can solve, thanks!