I have an rb411 2 hops away and can connect to it via winbox with its ip address 192.168.1.38. this has been in place for about 6 months and recently has started not running correctly ie being unable to collect emails, unable to browse or ping 8.8.8.8, intermittently

All the wireless interfaces are up and is up and I am connected via tcp/winbox to the client and cannot ping 8.8.8.8, the relay (1 hop) can ping 8.8.8.8.

the 411 is running ros4.6 and the relay rb433ah is running 4.11 with ospf. At first i suspected ospf failure so added static routes with no change.

any ideas thanks