File sharing between two computers speed is limited.

D

Digi_3333

Alright. So I've gone through 2 or 3 hours of troubleshooting now. I'm using the basic sharing system embedded in windows 10 to share files between my main computer and a PC I set up across the house for backups.


Both are capable of gigabit speeds and connected through Cat6A cable. Both are connected to the same gigabit network, and even the same gigabit switch. Both get gigabit speeds to the greater internet, and IPerf states that they can connect to each other through gigabit speeds.


The drives are both capable of well in excess of gigabit speeds, as testing shows they're sitting at 200-210 MB/s, which is about 1.6 Gb/s. Transferring the same files between different drives on the same system has them going at 200MB/s, but trying to transfer the files through the built-in sharing system puts them anywhere from 12.5MB/s to 16MB/s, which is well beneath gigabit, and is annoyingly slow when you're backing up 6TB of data.


I've tried disabling offloading of all protocols, disabling LSO, disabling auto-tuning, and forcing the computers to use 1000Mb full duplex setting. I've basically ruled out it being the network, the hardware, or the files, and all that I am left with is that windows either has a setting somewhere or is arbitrarily limiting the file transfer speed.


Anyone have any ideas?

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