I don't know if this is helpful, but I've seen this issue on Big Sur clients when interacting with Samba shares and trying to copy larger files. Finder throws the error code then unmounts the server. I think the ISIS is using its own properitary sharing and file system so this might not be related at all. When I've had this error code on

Heya, We are having an issue with slow write speeds (100Mbps average) to our Avid ISIS 5500. I've done quite a lot of troubleshooting but am hitting a brick wall. Our setup overall is quite simple. There is a 10Gbps connection on the older ISIS 5500 unit and 1Gbps connections on the end user machines running Media Composer. Our older machines are