Thursday afternoon's outage at all Saskatoon hospitals and some long-term care homes affected telephones, medical imaging in x-rays, CT and MRIs, pharmacy systems and access to patient histories.
The region-wide issue was affecting the same systems in Humboldt, Nokomis, Wadena, Watrous and Wynyard.
Health region CEO Dan Florizone said they were operating in "a very low-tech mode" as workers shared information by copying it to disks or drives and then running between units and locations.
Florizone said patient care was not affected but it took a few minutes longer to share information.
He said 911 call service, emergency rooms, clinic services, and surgeries were still running as normal.
"We can do an x-ray, a CT and MRI. What's missing is that ability to network," Florizone said. "So an additional step of copying it on a CD and running the CD."
Employees of the network provider Cisco were working to solve the problem.
Florizone said a similar issue happened over the weekend when the network went down for under an hour. A temporary "Band-Aid" solution was put in place until a permanent solution could be found.
"We were left fairly confident where the Band-Aid would hold; it didn't," Florizone said.