Hi PaulDG,
There are various reasons for not connecting:
PC running Server Software which is not supported
V24 speed in Bt Versatility programming and comm port speed are not the same
Faulty V24 lead
Faulty comm port
Faulty Bt Versatility interface
Could add that Bt Versatility Broadband Module can be programmed from the LAN using IP address 192.168.1.1
username - admin
password - admin
Could be worth registerating at Product Support and downloading latest version of Bt Versatility Wizard.
If Bt Versatility is Bt maintained the problem can br reported as a fault
Hope this is of help
Tracey
BT Forum Moderator