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I connected by VPN on Microsoft ISA server to my company over Asus WL- 500g 802.11g Wireless LAN Router connected to ADSL modem (Home Gateway mode), connection is after 130 s down. Doesn’t know somebody where's problem, I have updated last time to Oleg firmware 1.7.5.6 CR3 and the same problem. When I connected to ADSL modem without Asus, everything runs OK.
I had a similar problem with my VPN initially..
You've probably checked this already I guess though, and if it's working with adsl modem straight from the machine, then possibly not this. Worth checking though.
I found that it was the dhcp lease time from the modem that was causing the drop in connection. In my case the default dhcp lease wwas 60 secs.. you can see this in ths system log of the asus. I increased the dhcp lease time from the modem and now everything's fine.
I had a similar problem with my VPN initially..
You've probably checked this already I guess though, and if it's working with adsl modem straight from the machine, then possibly not this. Worth checking though.
I found that it was the dhcp lease time from the modem that was causing the drop in connection. In my case the default dhcp lease wwas 60 secs.. you can see this in ths system log of the asus. I increased the dhcp lease time from the modem and now everything's fine.
Thanks a lot !
dhcp lease time is set to 24 hours. VPN connection works badly only opposite Microsoft ISA server, if is used Linux server is everything OK and connection is fixed.
Fox
CSchneider
08-06-2004, 12:49
I have the same problem with WL500g via WLAN and VPN to ISA Server 2000.
No problem with WL500g via one of the ethernet ports and no problem with Netgear Router via WLAN either.
Fox,
have you found out what causes the problem?
I have the same problem with WL500g via WLAN and VPN to ISA Server 2000.
No problem with WL500g via one of the ethernet ports and no problem with Netgear Router via WLAN either.
Fox,
have you found out what causes the problem?
Are you running Windows XP? Do you have Zero Configuration... service running? Try to disable it. Don't know if it helps. Also disabling UPNP feature in the router could maybe help - try it as well.
I also have that problem and it seems to be independent from DHCP or Windows Zero Conf.
After ~130s the VPN connection just goes down. Both in Windows XP and in Linux.
I've checked syslog in the router and i saw a strange message:
ip_conntrack_pptp.c: bad csum
This message appears just before the connection goes down.
I'm running the latest firmware version from Oleg (CR5).
Any good idea?
That problem and it seems to be independent from DHCP or Windows Zero Conf. UPNP feature in Asus is disabled. Via one of the ethernet ports problem the same. Problem always carry through. I am tested 3Com and here runs everything OKs. I wait for ISA server 2004, to him could test, but in beta it meanwhile it is impossible test.
Any good idea?
I'm not sure but i think the problem appeared after firmware 1.7.5.6 (official)
Firmware version 1.6.5.3 has the same problem.
As also as the latest 1.7.5.9-1 from Oleg.
Heureka. Firmvare version 1.7.5.9-2 from Oleg working fine. When I reset router to defaut and uploand new firmware, problem was resolved. Thank Guru Oleg.!!!!!!!!!!!!!!!
Cool. It seems to work.
But i see no reference to this problem in Oleg's change log....
CSchneider
06-06-2005, 20:29
The problem is partially back in 1.9.4.0: Every 120-130 seconds you loose several packets so a ping -t shows a timeout and a remote desktop session over the VPN seems to hang for some seconds.
The problem was completely fixed in 1.7.5.9-1 from Oleg, but now it's back again.
Is there any way to fix it again in 1.9.4.0 or after?
Christian