MTU mismatch

[tuwid]

Fri Feb 28 10:40:41 2020 WARNING: normally if you use --mssfix and/or --fragment, you should also set --tun-mtu 1500 (currently it is 1440)
Fri Feb 28 10:44:42 2020 XXXXXX:57664 WARNING: 'tun-mtu' is used inconsistently, local='tun-mtu 1440', remote='tun-mtu 1376'

I'm getting these logs and the vpn disconnects after exactly 7 minutes with

28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 TCP connection established with [AF_INET]XXX.XXX.XXX.XXX:56996
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 XXX.XXX.XXX.XXX:56996 WARNING: Bad encapsulated packet length from peer (18245), which must be > 0 and <= 1500 -- please ensure that --tun-mtu or --link-mtu is equal on both peers -- this condition could also indicate a possible active attack on the TCP link -- [Attempting restart...]
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 XXX.XXX.XXX.XXX:56996 Connection reset, restarting [0]
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 WARNING: normally if you use --mssfix and/or --fragment, you should also set --tun-mtu 1500 (currently it is 1440)
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 TCP connection established with [AF_INET]XXX.XXX.XXX.XXX:56997
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 XXX.XXX.XXX.XXX:56997 WARNING: Bad encapsulated packet length from peer (18245), which must be > 0 and <= 1500 -- please ensure that --tun-mtu or --link-mtu is equal on both peers -- this condition could also indicate a possible active attack on the TCP link -- [Attempting restart...]
28/02/2020 10:55:34Fri Feb 28 09:55:34 2020 XXX.XXX.XXX.XXX:56997 Connection reset, restarting [0]