@Paul1977 You reminded me that I needed to enable backups of my NAS. I've got 7tb to upload, average speed thus far is around 100Mbit to Crashplan.
I decided Crashplan over Backblaze due to the fact it is unlimited backups and there is a Docker image that I can run on my NAS.
I'm averaging a whopping 8.4Mbps and have 3TB that needs catching up. Can you advise what version number of CrashPlan your Docker image is? Also what ISP are you with?
I 100% don't think it's an ISP or routing issue, as I can restore at 200+Mbps, but good to know for comparison sake so I can tell support that I know people who are getting far better speeds than me.
I've opened a support ticket with CrashPlan, but I don't expect to get much help there as they seem to think anything better than 2 or 3 Mbps is good.
CrashPlan memory usage is pretty low (less than 800MB), and CPU utilisation is less than 1%