Wrong pings on all servers

[shock4]

I noticed on the 2.5.2 the pings on the servers are off by about 20 pings. If I ping the servers IP address I would get a consistent ping of about 60. But if I join that server I get an 80 to 100 ping. This is with every server too. my own server that I pay for in Dallas TX I get a ping of 65. But when I join I get a 90 ping. Why is this?