Wireguard and sites not opening

hi.

Mikrotik HAP AC2 FW 7.14.1

i’m have strange problem - i’m add wireguard to my office.
Add needed routes

And all needed subnets pinging good and ssh for servers working. BUT https for any servers not working at all - i’m cant see any https sites which go throw wireguard - but SSH working - what the strange situation?
If i’m using this wireguard direct on mu PC or android phone - all working as is…

Must be your config at the office MT.
What MT router do you have at home as well ( if attempting to connect on a PC at home ) and its config may also be a problem.

i’m fix now my problem with this command -

/ip firewall mangle add action=change-mss chain=forward comment=“Clamp MSS to PMTU for Outgoing packets” new-mss=clamp-to-pmtu out-interface=wireguard1 passthrough=yes protocol=tcp tcp-flags=syn

and from this post -
http://forum.mikrotik.com/t/wireguard-router-not-all-websites-work/162368/1

Please explain why this need and why zyxel keenetic working good with same wireguard config but mikrotik no. Some bug?

my scheme -
office_mik.jpg