Spybot Updater no longer completes downloading updates

[Durham Drive]

While updating Spybot, the updater does not progress beyond the following file:

[00:13.723] [+] File "Trojans-C.sbi" needs to be downloaded.

The green bar has stayed 75% of the way for a good 30minutes and we have fibre 25MBPS.

Can someone tell what could be the reason for it and why I cannot update Spybot?

Thanks

[MikeP_UK]

Further to that said above by another contributer, I have the same sort of problem on 2 laptops. One runs W7 and the other W8.1 and both are fully updated but without going to W10.

In both cases it starts to update the signatures but then comes to a halt at about 50%. The information window shows:

[00:00.843] [+] spybotsd2-updater-update.exe is missing and will be installed (version 2.6.52.0).
[00:00.983] [+] PUPS-C.sbi (version 20160727) needs to be updated (to version 20160921).

But it goes no further!

How do I, and others, resolve this and get a fully updated S&D system, please?