Seeing 404 during connection redirect
# 🖥│support-forumv
Vinay Puppal
05/28/2026, 6:00 AMAfter completing the oauth connection it redirects our users to a 404 page
https://platform.composio.dev/redirect?status=failed&error=Failed+to+fetch+OAuth2+access+token%3A+Request+failed+with+status+code+400&appName=hubspot
Additionally on existing connected accounts we are seeing 403 errors
Error: 403 {"error":{"message":"Proxy execute is not enabled for this organization. Contact Composio support to request access.","code":2812,"slug":"ExternalProxy_OrgNotAllowed","status":403,"request_id":"f17bf3ff-88b2-4d83-8a10-2ec392228be5","suggested_fix":"Proxy execute is not enabled for this organization. Contact Composio support to request access."}}
project_id: pr_B3Wzr6-ILONI
org_id: ok_GW8e57TUrbra
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Brendan O'Leary
05/28/2026, 9:40 AMHey,
the 404 issue has been fixed & we've enabled proxy execute for your Org. Apologies for the issue.
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Vinay Puppal
05/28/2026, 12:14 PMThanks
Vinay Puppal
05/28/2026, 12:18 PMI can confirm Proxy issue is resolved. But still seeing 404 issue, see the attached screenshot
https://cdn.discordapp.com/attachments/1509436220852277398/1509531221393277111/image0.jpg?ex=6a198400&is=6a183280&hm=f40af79ee373e85405fe19fbbf75ee87e27bd51a9a74ec5a7ba750cc11769142&
Vinay Puppal
05/28/2026, 12:44 PM@Karan @Abhishek we have customers blocked right now by a OAuth failure, see previously shared screenshot we are still experiencing error page during reconnect or new connections. Can this be resolved soon?
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Abhishek
05/28/2026, 12:52 PMCan you share your debugging info from project settings?
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Vinay Puppal
05/28/2026, 1:00 PMSee the 1st message I already shared project and org id @User
Vinay Puppal
05/28/2026, 1:54 PM@Abhishek Any update here?
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Abhishek
05/28/2026, 2:10 PMMB, thanks. Looking into it
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Uday
05/28/2026, 3:55 PMHey @Vinay Puppal , thanks for the screenshot! so this is something we've usually seen happen when a bad client secret is used. only thing i'd need from you: can you replace the client secret, save it, and then initiate a new connection? that should ideally fix it. if it doesn't lmk.
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Vinay Puppal
05/28/2026, 4:45 PMI already did replaced the client secret few hours back but saw same issue
Vinay Puppal
05/28/2026, 4:53 PM@Uday I just rotated and updated the secret in auth config but still seeing same error
Vinay Puppal
05/28/2026, 6:29 PM@Uday I even tried by creating new hubspot auth config, still same issue. It was working fine till 26th and started failing since 27th.
Vinay Puppal
05/28/2026, 6:47 PMCreating a new hubspot app and using new credentials solved the issue. Not sure why existing app did not work, anyway this fixed the issue so thanks for the looking into it @Uday
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