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Zscaler NSS Source Connection Breaks When TLS Is Enabled

  • February 25, 2026
  • 30 replies
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30 replies

mmarker
  • Author
  • Participating Frequently
  • February 25, 2026
Yeah ive committed and deployed back and forth. It works when its http and port 8088

mmarker
  • Author
  • Participating Frequently
  • February 25, 2026
the second i change it to https and any other port (on both sides) it breaks.

Jon Rust
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  • Employee
  • February 25, 2026
20000-20010 are open by default for any source to use. Default ports can be re-used if you disable the default source for them

Jon Rust
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  • Employee
  • February 25, 2026
Sure sounds like TLS is the problem then

Jon Rust
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  • Employee
  • February 25, 2026
how are you setting TLS up in the Zscaler config?