ANR2579E / ANR0484W Need Help

Hi,

We run TSM 4.1.3 on OS/390 2.10.
Client WinNT

Last Night we get this error messages(ActLog):

-------------------------------------------------------------------------------------------------
03.12.2001 04:00:01   ANR2561I Schedule prompter contacting VISX2111 (session
                       844) to start a scheduled operation.
03.12.2001 04:00:03   ANR0406I Session 846 started for node VISX2111 (WinNT)
                       (BPX-Tcp/Ip 172.20.4.150(2529)).
03.12.2001 04:00:03   ANR0484W Session 846 for node VISX2111 (WinNT) terminated
                       protocol violation detected.
03.12.2001 04:20:03   ANR0406I Session 875 started for node VISX2111 (WinNT)
                       (BPX-Tcp/Ip 172.20.4.150(2770)).
03.12.2001 04:20:03   ANR0484W Session 875 for node VISX2111 (WinNT) terminated
                       protocol violation detected.
03.12.2001 04:40:03   ANR0406I Session 879 started for node VISX2111 (WinNT)
                       (BPX-Tcp/Ip 172.20.4.150(3011)).
03.12.2001 04:40:03   ANR2579E Schedule D_W2K_STD_4UHR in domain D_W2K_STD for
                       node VISX2111 failed (return code -1).
03.12.2001 04:40:03   ANR0403I Session 879 ended for node VISX2111 (WinNT).
03.12.2001 04:40:04   ANR0406I Session 880 started for node VISX2111 (WinNT)
                       (BPX-Tcp/Ip 172.20.4.150(3012)).
03.12.2001 04:40:04   ANR0403I Session 880 ended for node VISX2111 (WinNT).
03.12.2001 07:16:54   ANR4391I Expiration processing node VISX2111, filespace
                       \\visx2111\c$, domain D_W2K_STD, and management class
                       DEFAULT - for BACKUP type files.
-------------------------------------------------------------------------------------------------

Have anyone seen this before?

Thanks in advance,

Roland