Yes, with mcmc ticket as well. but since its only affected my work related zscaler, so they mcm, cannot do anything any closed my ticket. only mcmc ticket still open. Already provide proof like from other isp no issue, using vpn no issue, still mcm x layan

last i just use vpn on top of zscaler, and much better ( although it add another hop)

other things is the speedtest to celcom ( since I use celcomfiber, last @pppoe) only celcom petaling manage to get 300mb down 50 up speed, other celcom server like snail. sometimes 100,sometimes 200

Btw i riding on Allo network

Singapore node SIN4 server. Yes its celcom network itself is bad at routing. I did pinjam my neighbour wifi for testing for allo and its work flawlessly.
To summary for zscaler ;
CD telco using celcom : bad
CD telco using digi : good
hotlink telco : good
Allo : good
Maxis fiber : good
TM: good

I previously ask them to check if they have issue with zscaler IP network ( i give them IP range). within 2 week its fine. But few week ago, I connected to SIN4 node (previous is SIN1 if I can recall) then back to issue again. Asked again to check , now they rejected