I have RouterOs 3.14 installed

/ip ipsec peer> print
Flags: X - disabled
0 address=0.0.0.0/32:500 auth-method=pre-shared-key
secret="2008" generate-policy=yes
exchange-mode=main send-initial-contact=yes nat-traversal=no
proposal-check=obey hash-algorithm=sha1 enc-algorithm=3des
dh-group=modp1024 lifetime=30m lifebytes=0 dpd-interval=disable-dpd
dpd-maximum-failures=1

admin@MPI-MLA01-MT001] /ip ipsec policy> print
Flags: X - disabled, D - dynamic, I - inactive
0 src-address=192.168.26.1/32:any dst-address=192.168.26.99/32:any
protocol=udp action=encrypt level=require ipsec-protocols=esp tunnel=yes
sa-src-address=0.0.0.0 sa-dst-address=0.0.0.0 proposal=default
manual-sa=none priority=0

[admin@MPI-MLA01-MT001] /ip ipsec proposal> print
Flags: X - disabled
0 name="default" auth-algorithms=md5,sha1 enc-algorithms=3des lifetime=30m
pfs-group=modp1024

ppp secret
14 terencer... l2tp xxxx default-... 172.16.21.65

On Windows simple VPN..I tried both with setup on Wiki, as the new simpler approach to set parametr Pre-Sharekey in propertines of VPN

I get error from windows Error 789
and on microtik I see error in log "couldnt find configuration"

Can you please help?

I have the same problem. cant get past erro 789. PPTP works just fine.