Hello,
I set up an xl2tp client using xl2tpd port on OpenBSD amd64 stable.
Most of the time I connect to a Mikrotik PPPoE VPN server and the connection 
runs without problems but
sometimes I cannot make a connection. When this happens I see the following in 
the /var/log/daemon:

tail -f /var/log/daemon | grep xl2tpd
Jul 25 13:27:07 nb1 xl2tpd[96632]: Written by Mark Spencer, Copyright (C) 1998, 
Adtran, Inc.
Jul 25 13:27:07 nb1 xl2tpd[96632]: Forked by Scott Balmos and David Stipp, (C) 
2001
Jul 25 13:27:07 nb1 xl2tpd[96632]: Inherited by Jeff McAdams, (C) 2002
Jul 25 13:27:07 nb1 xl2tpd[96632]: Forked again by Xelerance 
(www.xelerance.com) (C) 2006-2016
Jul 25 13:27:07 nb1 xl2tpd[96632]: Listening on IP address 0.0.0.0, port 1701
Jul 25 13:27:07 nb1 xl2tpd[96632]: Connecting to host IPADDRESS, port 1701
Jul 25 13:27:38 nb1 xl2tpd[96632]: Maximum retries exceeded for tunnel 39276.  
Closing.
Jul 25 13:27:38 nb1 xl2tpd[96632]: Connection 0 closed to 91.234.97.130, port 
1701 (Timeout)

When I check the port 1701 on the VPN host with netcat it is open.
When I ask a VPN admin on their side to check my connection attempts they do 
not see anything.

When I make a connection using Windows or Ubuntu machine at the same time, it 
connects without problems.


What can be the problem?


-- 
Best regards,
Maksim Rodin

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