Pictures opening slow from local server on Client PC's

Question

I have an issue where pictures stored on a local, physical server (size 2-6mb) take 10-15 seconds to open on Client PC's.

Environment: Server is a Dell PowerEdge R640, Intel Xeon Silver 4214R, 49152MB RAM, 1.7TB in a RAID. They have one gigabyte switch for their office in which the server and PC's all connect to. PCs are all brand new as of 3 months ago. They are all in a domain.

Troubleshooting so far:

-Rebooted the switch with no effect.

-Performed the following steps to turn off thumbnail's in group policy, this had no effect:

   -Go to the following Group Policy section User Configuration -> Administrative Templates -> Windows Components -> File Explorer;

   -This section has three options that allow you to manage the creating of the thumbs.db file by File Explorer:

   -Turn off the display of thumbnails and only display icons on network folders (prevents thumbs.db file from being created on shared network folder)

   -Turn off caching of thumbnails in hidden thumbs.db files

   -Turn off the display of thumbnails and only display icons

-Created a GPO for Network Discovery for client PC's as described here - https://www.technig.com/enable-network-discovery-via-group-policy/

-Tried different photo viewing app's - IrfanView, Windows Photo viewer, Paint. No improvement there.

What other things should I look at to resolve this issue for them.

Thank you in advance!

Answer 1

Hello Mark U,

It seems that after your tests it may seem a network issue. Have tried to capture a network trace during the opening (should not be a big one to analyze)? I would specially look about RST flags and times.

Other option I would check is to run a trace route to the file server DNS and IP separately, with the command TRACERT <IP> to discover if there is any abnormal hops.

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