Connection drop in zywall 1100 and vpn1000 and zywall110

milo

Hello all.  i have a problem, long time never solved. I  have a one zywall 1100, zywall 110, VPN1000, ad i have the same problem in all the device. I use to connect in L2TP, and all is great. But after a while, with no rules seems, i get the Number of Login Users  more   bigger then the VPN Status.  Like user connect 170 and 30 vpn status.I let 3 connection for each users and i see all of them with 3 connection open.  When this some people can still use, some others can't connect. The only way i have to fix is reboot the device and all get back works perfectly. I also ask a Zyxel approved engeneer to solve this problem but not  solved. This problem happend to me with all the 3 device i have. I have all last firmware in all the device. It append random, can be one time a day, 4 time a day, or one time after 3 days. Seems there is nothing that can explain it. I did connect to a modem that already get the connection  and nat. If anyone have some idea, is really very welcome.

lalaland

It would be helpful if you can take screenshots

milo

milo

Anyone knows how to solve this issue?

Zyxel_Emily

Hi @milo,

The list of Login Users contains not only l2tp users but also other login type such as http/https and console.

To check if the number of “l2tp” users are exactly the same as the number of L2TP VPN connection, you can go to MONITOR > System Status > Login Users to check the number of users with type “l2tp”. Check if the IP addresses of type “l2tp” match secure gateways of L2TP VPN in  MONITOR > VPN Monitor > IPSec.

milo

@ Zyxel_Emily
Hello emily. I did and as you say, and you can see only me in https, all is l2tp.  Happend always and always. i need to reboof to fix, i did not find any other way. i hope can exist a way to fix. i already put automatic reboot 2 times per day,  but is not a solution,is  just a patch, but in the moment i have more in one day , i need to follow always the server to avoid the mistake. Really hope can exist a solution

Zyxel_Emily

Hi @milo,

To check if there are duplicate connections from the same L2TP VPN client, could you give me the web GUI access of your VPN1000 in private message?