Sudden Speed problem

[mjmercury23 0]

About a month ago this particular problem started and I just cannot seem to figure out what is causing it
The download speeds I used to get on a locally hosted hub was anywhere between 4-10MBps.
Now I get speeds of 7-65Kbps fluctuating from all the users on the hub(Same users as before).

however the upload speeds to them is unaffected.still goes upto 10MBps and sometimes even more for some users

 

Have tried reinstalling the app after doing a complete uninstall even the settings.

Need some help here. Thanks in advance .