VPN access into work no longer working

[fishstix]

RT-AC88U
386.7_2 ASUSWRT
Internet - Spectrum

It has been working great with access to my work VPN, but they upgraded today and now we have to access using ZSCALER, when I connect using ZSCALER, I no longer can access anything at work. I have disabled all the Firewall settings on the RT-AC88U, I have tried wired and wireless. I have rebooted my laptop and the RT-AC88U, also removed the OPEN DNS address, still no luck.

If I connect to my cell phone hotspot everything works as it should using ZSCALER. Anything else I can try on the RT-AC88U?

Thanks as I am kinda lost as to what else to try.

 

[Justinh]

This is probably just a wild guess, but make sure services are enabled on the "WAN - NAT Passthrough" page. I learned that for my VPN connection to the office, "IPSec Passthrough" has to be enabled.

It looks like Zscaler can use different protocols.

 

[boricua]

My job also has Zscaler and what we've been told is to click on update policy. In Zscaler, it should say something about tunnel 2.0.

 

[sfx2000]

hint - zscaler adds to the MTU - so reduce MaxMTU size to 1360, and things might start working...

 

[fishstix]

hint - zscaler adds to the MTU - so reduce MaxMTU size to 1360, and things might start working...

Thank you everyone for the input, but most of all THANK YOU sfx2000, soon as I made the change and applied it the zscaler software starting working.

Thank you again.

 

[sfx2000]

Happy to help...