We've experienced problems recently with internet access (from inside our network) being really slow. Our SME server (SME8 all updates applied) on a Poweredge R200 with 8GB RAM is in server/gateway mode.
Yesterday, after having tried pretty much everything else (including swapping out switches and wireless access point), I tried disabling the DHCP on the SME and using a pfsense firewall running on Soekris hardware as our internet gateway. Speed is back to normal.
Our website and mail - running on the Dell - are fine, and access speed from the outside is fine. The server starts/restarts normally, without throwing up any errors.
Anyone have any suggestions why this could be? (If you need to see log files, tell me what to post)
Thanks.