We have a webserver running Ubuntu 11.04.
From time to time we find that we lose connectivity to it.
We receive replies from ping attempts, however websites are unreachable and we are unable to connect via webmin.
Are there any suggestions on where we could start looking or any ideas what the problem might be?
This server has been running for years and only recently started displaying this behaviour.
Please let me know if any further information is required.
Edit: noticed on the motherboard that one of the capacitors is starting to swell a bit. (don't know how to insert image on forum)