DeepSeek PC login loop behind a proxy (2026)
If the desktop app keeps bouncing on login while the browser works, suspect proxy interception.
Try a clean network or disable system proxy briefly to confirm the failure mode.
Update the desktop client; older builds mishandle modern auth redirects more often.
Clear local session data after a failed loop, then sign in once without parallel windows.
Smoke-test with a one-line prompt before opening long threads.
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.