I have MacBook Pro (2.3GHz Intel Core i7, 16 GB RAM, 512 GB SSD – late 2013?) and Time Machine backups data via network to our internal OS X Server. But when Time Machine is running backups, my computer is completely frozen. Webpages are not loaded, Apple Mail doesn't load/show messages at all, etc. But my colleague doesn't have such problems with his MacBook with the same HW configuration.
What could be wrong?
Best Answer
I found an article that suggests some troubleshooting steps, I'll summarize it here:
There are a couple of additional suggestions on the article, check it out if this steps do not solve your issue and for a full description of each step.
Also, your colleague may provide a good comparison for troubleshooting: you said your hardware is identical, so:
Finally, check the Activity Monitor prior to and while Time Machine is running, to single out resource hogs.