Informix Record not read

Gente, les paso un extracto de log a ver si nos tiran alguna idea:

13:21:47 Init operation complete - Mode Online
13:21:47 On-Line Mode
13:21:48 Checkpoint Completed: duration was 1 seconds.
13:21:48 Checkpoint loguniq 15259, logpos 0x771018

13:21:54 Booting Language from module <>
13:21:54 Loading Module
13:27:30 Checkpoint Completed: duration was 4 seconds.
13:27:30 Checkpoint loguniq 15259, logpos 0x772018

13:41:54 (64) Unable to initiate asyncronous read operation
13:41:54 listener-thread: err = -25580: oserr = 0: errstr = : System error occurred in network function.

13:44:22 (71) Unable to initiate asyncronous read operation
13:44:22 listener-thread: err = -25580: oserr = 0: errstr = : System error occurred in network function.

13:59:18 (110) Unable to initiate asyncronous read operation
13:59:18 listener-thread: err = -25580: oserr = 0: errstr = : System error occurred in network function.

14:29:42 (187) Unable to initiate asyncronous read operation
14:29:42 listener-thread: err = -25580: oserr = 0: errstr = : System error occurred in network function.

16:18:54 Assert Failed: read_record: deleted rowid = cbe01, partnum = 200014
16:18:54 Informix Dynamic Server 2000 Version 9.21.TC4
16:18:54 Who: Session(268, mzayer@ALUMNADO1, 1748, 0)
Thread(286, sqlexec, 0, 1)
File: rsread.c Line: 2273
16:18:54 Results: Record not read
16:18:54 Action: Please notify Informix Technical Support.
16:18:54 stack trace for pid 1676 written to D:\tmp\af.5066a1d
16:19:01 See Also: D:\tmp\af.5066a1d, shmem.5066a1d.0
16:19:03 Releasing server from system block
16:23:24 read_record: deleted rowid = cbe01, partnum = 200014

Ese error pareciera que es error en la red. Tal vez que existan microcortes en la red que hagan que se pierda la conexion de algunas sesiones?