I have been trying to help a friend diagnose a problem with their technology.
On their WiFi network, they have an Epson WiFi printer/scanner and several Windows 7 SP1 systems. The printer/scanner has an SD card slot to store the scans.
Their WiFi network works well. The speeds are within the appropriate range. However, accessing the files on the printer/scanner's SD card slot is amazingly slow.
What steps can I take to diagnose this problem, and hopefully fix it?
What I've tried so far:
- I took the SD card out of the printer, and inserted it directly into a computer. Reads and writes to the card were very fast. This confirms the card is not defective or slow.
- I rebooted the printer/scanner, the router, and all the systems on the network. Doing this did not improve the situation.
- I reformatted the SD card. No effect.
- I tried another SD card. No effect.
- I knew reading from the printer/scanner's SD card over their network was very slow, but I was not sure about writing. So I tried writing to the SD card over the network, and it was even slower than reading. Simply deleting 100 files took over 5 minutes.