PET/TAP interface not working

Here is a log file of our BMS trying to send an alarm via RS232 serial using TAP protocol.It hasn't been working recently. Can anyone see any specific problems here?
Thankyou

18-Dec-04 10:39:48.250 2004-12-18 10:39:48.24 spid57 Using 'xplog70.dll' ve
rsion '2000.80.760' to execute extended stored procedure 'xp_cmdshell'.
18-Dec-04 10:40:00.046 ( -1 2796 2844) :gdacachemngr.cpp,v:211: GdaCacheMngr 3
77470 for connection 500 detected servername or progid change
18-Dec-04 10:40:00.046 ( -1 2796 2844) :gdacachemngr.cpp,v:227: GdaCacheMngr 3
77470 for connection 500 failed in TryAnotherServer call, hr=0x80004005
18-Dec-04 10:40:00.328 ( -1 2796 2876) :gdaconnectionmngr.cpp,v:819: Connectio
n 500 connect thread stopped
18-Dec-04 10:40:23.609 ( -1 2796 2892) :gdadatasink.cpp,v:360: Couldn't set ca
llback handle
18-Dec-04 10:40:28.515 ( -1 2200 2644) :semop1.c,v:121: semop1(semid=15,semnum
=13,oper=2,wait=0) hndl=30 release failed
18-Dec-04 10:40:28.515 Error code 298: Too many posts were made to a semaphore
.
18-Dec-04 10:40:28.593 ( -1 2200 2644) :semop1.c,v:121: semop1(semid=15,semnum
=13,oper=2,wait=0) hndl=30 release failed
18-Dec-04 10:40:28.593 Error code 298: Too many posts were made to a semaphore
.
18-Dec-04 10:40:28.890 ( -1 2200 636) :semop1.c,v:121: semop1(semid=15,semnum
=13,oper=2,wait=0) hndl=30 release failed
18-Dec-04 10:40:28.890 Error code 298: Too many posts were made to a semaphore
.
18-Dec-04 10:40:58.875 ( -1 716 2176) :ems_sp_ESDC_InsertEvent :223: Nu
ll message
18-Dec-04 10:41:07.984 ( -1 716 2168) :ems_sp_ESDC_InsertEvent :223: Nu
ll message
18-Dec-04 10:42:58.015 ( -1 1940 2920) :ripsd.c,v:549: no longer serving clien
t ODHBEBISERVA address 127.0.0.1 as station 1
18-Dec-04 10:42:58.015 ( -1 1940 2920) :ripsd.c,v:555: no longer serving clien
t ODHBEBISERVA address 127.0.0.1
18-Dec-04 10:43:08.109 (1424 3060) CCMSGlobal.GetMarketingRelease:: Error: inv
alid hWnd: 131408
18-Dec-04 10:43:08.859 ( -1 1940 2868) :ripsd.c,v:676: thread 2908 serving cli
ent ODHBEBISERVA address 127.0.0.1 at 10:43:08
18-Dec-04 10:43:09.140 ( -1 1940 2908) :svc_nips_nt.c,v:128: serving client OD
HBEBISERVA address 127.0.0.1 as station 1
18-Dec-04 10:43:09.640 (1424 3060) CCMSGlobal.GetMarketingRelease:: Error: inv
alid hWnd: 131408
18-Dec-04 10:50:32.703 ( -1 1928 3240) :readn.c,v:181: recv() - error receivin
g data from socket
18-Dec-04 10:50:32.703 Error code 10054: Connection reset by peer.
18-Dec-04 10:50:32.703 ( -1 1928 3240) :readreq.c,v:138: Read of header return
s error 11023
18-Dec-04 10:50:32.703 ( -1 1928 3240) :confserve.c,v:163: Set reply error to
readreq error 11023
18-Dec-04 10:50:32.703 ( -1 1928 3240) :confd.c,v:531: hsc_s_confserve() faile
d - return status 11023
18-Dec-04 10:51:33.609 ( -1 2328 2716) :stormsg.c,v:97: Aux msg index decode e
rror - -32206
18-Dec-04 10:51:52.796 ( -1 2328 2720) etlogon.c,v:237: Logon failed after 5
read attempts.
18-Dec-04 10:51:52.796 ( -1 2328 2720) rocmsg.c,v:336: Logon sequence termin
ated.
18-Dec-04 10:51:52.796 ( -1 2328 2720) rocmsg.c,v:468: Unabled to connect/lo
g to the provider
18-Dec-04 10:51:52.796 ( -1 2328 2720) :modemint.c,v:187: Error 0200 paging me
ssages. Tries 1/INFINITE
18-Dec-04 10:51:52.796 ( -1 2328 2720) :logpagerr.c,v:132: NO DIALTONE FOUND
18-Dec-04 10:51:52.796 ( -1 2328 2720) :modemint.c,v:122: Raising waiting even
t
18-Dec-04 10:52:43.625 ( -1 2328 2716) :stormsg.c,v:97: Aux msg index decode e
rror - -32206