The backup operation that started at [Time Stamp] has failed with following error code ‘2155348315‘
you can relax. Nothing is wrong with your system. Something is wrong however with your Wi-Fi or your wireless router.
I was using Windows 7 backup for several month without a single error. Then, I switched my desktop to a Wi-Fi connection (instead of a wired one), and sure enough, I started getting these errors.
The link between these two event wasn’t obvious at first. Backup only runs once a week, and you need some time to notice that something is wrong with you backups. So couple of weeks later I start receiving reminders from System Action Center to run a complete system backup. That is new. What’s wrong? By that time I forgot to thing about Wi-Fi switch as something new, or recent.
So, my first scare was a virus. I started deleting those obnoxious EXE(s) from multiple Registry Run location. Found a couple of very interesting ones. As a side note, I discovered that 64-bit system has more places to insert programs to run on Start-up. But all this didn’t resolve the issue. Then I got to the actual backup error that you can see in Event Viewer – Application and Services – Microsoft – Windows – Backup (see picture).
At this point I realize that this error – 2155348315 – happens at various intervals from the begging of the backup, and there is no more details available from the error itself.
So I spent some time researching the issue, but all the answers were vague and uncertain. Then, as a chance has it, I just run a really long network wire from the router and tested and retested the backup. All the errors are gone. Now I am convinced that the cause of that error is a slight hiccup somewhere between PC and the router during long minutes and hours that backup takes.