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robert.lesch

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Hi,
on my Kerio Cotrol Box 31xx (8.5.2) I have several User with VPN tunnels. One User has the Problem, when opening a RDP-Client to Access an Terminalserver the VPN tunnel is broken, after a few seconds the tunnel is started again. RDP without VPN is working fine.

The debug-log says:

[04/May/2015 15:09:06] {vpnclient} Client[91.2.223.67:49812](147): UDP packets not coming from the other side, VPN tunnel probably broken, disconnecting
[04/May/2015 15:09:06] {vpnclient} Client[91.2.223.67:49812](147): 212.126.207.36:4090 <--- 10.189.205.7 ---> 91.2.223.67:49812tcp/53242udp - DEREGISTER
[04/May/2015 15:09:06] {vpnclient} Client[91.2.223.67:49812](147): client deregistered
[04/May/2015 15:09:06] {vpnclient} Client[91.2.223.67:49812](147): flushing ARP cache for adapter 0xA, IP 10.189.205.7
[04/May/2015 15:09:06] {vpnclient} VPN Client deregister connection: 212.126.207.36:4090 <--- 10.189.205.7 ---> 91.2.223.67:49812tcp/53242udp DEREGISTER
[04/May/2015 15:09:06] {vpnclient} Client[91.2.223.67:49812](147): client erased
[04/May/2015 15:09:06] {vpnclient} client removed from maps, 5/5 remaining

any suggestions ??
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viwar

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I have the same problem

[03/Jun/2016 12:36:22] {vpnclient} Client[91.228.161.39:57238](251): UDP packets not coming from the other side, VPN tunnel probably broken, disconnecting
[03/Jun/2016 12:36:22] {vpnclient} Client[91.228.161.39:57238](251): 213.177.119.158:4090 <--- 10.189.222.9 ---> 91.228.161.39:57238tcp/51313udp - DEREGISTER
[03/Jun/2016 12:36:22] {vpnclient} Client[91.228.161.39:57238](251): client deregistered
[03/Jun/2016 12:36:22] {vpnippool} IP 10.189.222.9 freed
[03/Jun/2016 12:36:22] {vpncore} Refcount for IP address 10.189.222.1 decremented to 3
[03/Jun/2016 12:36:22] {vpncore} oldapi: KVpnConnectionDelete(300) -> SUCCESS
[03/Jun/2016 12:36:22] {vpncore} oldapi: KVpnGetVpnAdapterIndex() -> SUCCESS
[03/Jun/2016 12:36:22] {vpnclient} Client[91.228.161.39:57238](251): flushing ARP cache for adapter 0xC, IP 10.189.222.9
[03/Jun/2016 12:36:22] {vpnippool} VpnIpPool reference count decremented, count = 5
[03/Jun/2016 12:36:22] {vpnclient} Client[91.228.161.39:57238](251): client erased
[03/Jun/2016 12:36:22] {vpnclient} client removed from maps, 2/2 remaining
[03/Jun/2016 12:36:22] {vpnclient} VPN Client deregister connection: 213.177.119.158:4090 <--- 10.189.222.9 ---> 91.228.161.39:57238tcp/51313udp DEREGISTER
[03/Jun/2016 12:36:41] {vpn} vpnHandler: 91.228.161.39:59245 -> 213.177.119.158:4090, interface: "WAN2"
[03/Jun/2016 12:36:41] {vpn} Peer[91.228.161.39:59245]: new incoming connection
...

Help!
  •  
robert.lesch

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Hi my Problem was solved by changing the router at Clientside, the odl model had a Problem with fragmentation of IP-Packets
Kind regards
Robert Lesch
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viwar

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robert.lesch wrote on Fri, 03 June 2016 13:10
Hi my Problem was solved by changing the router at Clientside, the odl model had a Problem with fragmentation of IP-Packets
Kind regards
Robert Lesch

Thanx. I'll try to play with MTU.
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