[NEBULA] Whatsapp - slow response time

paulbpaulb Member Posts: 16  Freshman Member
edited June 2, 2020 4:43PM in Nebula Security Gateway
Hi,
we are implementing a wireless solution at a school. It turns out that response time for whatsapp-users is pretty high when on wifi, changing to the 4G -network delivers almost immediately. (Takes about a minute to receive/send a message). 

Any idea?

Tnx,

Paul

Accepted Solution

All Replies

  • iversivers Member Posts: 36  Freshman Member
    Only wahtsapp is affected or is there other service encounter the same problem?
    What's your topology looks like.
  • paulbpaulb Member Posts: 16  Freshman Member
    As far as we can see i'ts only Whatsapp...iMessage and FB Messenger 
    are working perfect
  • paulbpaulb Member Posts: 16  Freshman Member
    Hi,

    Done some more testing and is seems that it has something to do with the categories for content filtering on the NSG-200. 
    I tested and checked the categories for WhatsApp and they were not blocked, so I turned off all of the contentcategories...Result: all of a sudden everything worked perfect!
    I have a feeling that there's something going wrong with the filtering...
  • Nebula_ChrisNebula_Chris Zyxel Official Agent Posts: 287  mod
    Hello @paulb
    May I know which CF categories have you enabled before?

    /Chris
    Chris
  • paulbpaulb Member Posts: 16  Freshman Member
    Hi Chris,

    I made a screenshot of the CF-categories we are currently using (these are the ones causing the delay somewhere)


  • Nebula_ChrisNebula_Chris Zyxel Official Agent Posts: 287  mod
    Hello,
    I have enable those category however didn't encounter the same symptom, may I know beside the CF which NSS service has you enable? IDP and APP patrol monitor
    BTW, could you also let me know your ISP bandwidth and how many users in this scenario?

    /Chris
    Chris
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