Hi,
I’ve got 2 remote sites connected through VPN to main site where is MikroTik RB750Gr3.
Both sites are using the same configuration and on MikroTik they share the same peer profile and policy proposal. One site (Draytek 2920) is working without any issues but second (TpLink VR400) started dropping VPN connections after few minutes (sometimes even seconds) with messages “ISAKMP-SA deleted IP1[500]-IP2[500] spi:(..) rekey: 1”
rebooting both routers doesn’t make any difference - situation is repeated all the time : tunnel is established, some traffic is started over this tunel but after 1 or 2 minutes (sometimes 30-40 seconds) tunnel is deleted
Any ideas how to fix this problem?