DMR+ is no more over here. There are no UK repeaters connected to it anymore at all, they have all switched to Brandmeister. If you're still connected to DMR+ on 4400 you will find it very quiet apparently.
Anyone that connects to 4400, 4401, 4402, and 4403 should use the new Brandmeister DV4mini software, and choose the appropriate BM master server. The software is available in the files section above or at https://goo.gl/9tG1W4
The new BM dashboard is at http://www.bm-dmr.uk/dashboard/
Please share this post and tell other DV4mini users of the change, to prevent disappointed user wondering where everyone has gone.