DeepSeek PC fails when system proxy conflicts (2026)
Check system proxy and app network settings.
Temporarily clear HTTP_PROXY/HTTPS_PROXY.
Retry a short prompt.
Corporate SSL inspection may need an allowlist.
Note the working combo.
Change one variable at a time and confirm what actually helped.
If a company policy is involved, rule that out before chasing client settings.
Write the working steps into a short checklist for next time.
Export or screenshot a good setup so reinstalls are faster.
If it still flakes, retest on a clean network such as phone hotspot.