erro squid

é o seguinte o squid tava funcionado blz dai do nada a internet começa a ficar lenta e demora muito pra abirir os sites pior que discada dai eu reinicio o servidor e volta o normal dai fui da uma olhada no cache.log e ta assim:


0 Duplicate URLs purged.
2008/12/22 15:57:06| 0 Swapfile clashes avoided.
2008/12/22 15:57:06| Took 0.5 seconds (26211.5 objects/sec).
2008/12/22 15:57:06| Beginning Validation Procedure
2008/12/22 15:57:06| Completed Validation Procedure
2008/12/22 15:57:06| Validated 13617 Entries
2008/12/22 15:57:06| store_swap_size = 184312k
2008/12/22 15:57:07| storeLateRelease: released 0 objects
2008/12/22 15:58:22| sslReadServer: FD 36: read failure: (104) Connection reset by peer
2008/12/22 15:58:36| sslReadServer: FD 38: read failure: (104) Connection reset by peer


o que pode ser?

ninguem????