Unexpected redirects can come from application canonical settings, rewrite rules, domain aliases, proxy behavior, or cached permanent redirects.
Trace the redirect chain and response headers, compare origin and public behavior, inspect application URL settings and rewrite rules, and check account domain mappings. Change one layer at a time and retest with a clean browser session.
Hosting support can follow redirects across application and server configuration. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.