Corporate firewall breaks sync TLS after update
Behind a corporate firewall that re-encrypts traffic, the sync program can no longer reach its upgrade and relay servers after an update.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 18 September 2026 · last reported 18 September 2026
What's going wrong
A Windows user behind a corporate firewall that re-encrypts all secure traffic found the sync program suddenly unable to reach its upgrade and relay servers, with a TLS illegal parameter error.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 4 reports are about, and how many came each month.
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