While working on the Indian GST portal, users may occasionally encounter an error similar to:

The requested URL was rejected. Please consult with your administrator.
Your support ID is: [a long numeric ID]

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A Go Back link may also appear on the page.

This error can be confusing because the GST website itself may be accessible, the Internet connection may be working normally, and other websites may open without any problem.

In many cases, this message indicates that the particular web request has been rejected by a security layer protecting the GST web application, rather than simply indicating that the user's Internet connection has failed.

The rejection may be associated with a browser session, cookies, an expired or malformed URL, network configuration, proxy/VPN, security software, public IP address, or a temporary GST portal-side security rule.

This article explains the possible causes and provides a systematic troubleshooting procedure.

1. What Does “The Requested URL Was Rejected” Mean?

Modern government and financial websites generally operate behind multiple security layers.

A simplified connection may look like:

Your Computer → Browser → Local Network → Router/Firewall → ISP → Internet → GST Security Infrastructure → GST Web Application

Before the actual GST application processes a request, security systems may inspect it.

Depending on the site's infrastructure, these can include technologies such as:

• Web Application Firewall (WAF)
• Reverse proxy
• Load balancer
• Application gateway
• Intrusion-prevention controls
• Bot and automated-traffic detection
• Session-validation mechanisms
• URL and request filtering
• Rate-limiting systems

If a request fails one of these checks, it may be rejected before the requested GST application page is displayed.

Therefore, seeing:

“The requested URL was rejected.”

does not necessarily mean that the GST website is completely down.

2. What Is the Support ID Shown With the Error?

The rejection page commonly displays a long number referred to as a Support ID.

For example:

Your support ID is: XXXXXXXXXXXXXXXXXXXX

This number should be preserved if the problem continues.

It may help GST technical support correlate the rejected request with logs maintained by the relevant web/security infrastructure.

Important

When reporting the problem, record:

• Support ID
• Date
• Approximate time
• GST portal page being accessed
• Browser name and version
• Screenshot of the error
• Whether another Internet connection worked
• Whether Incognito/InPrivate mode worked

Do not publish sensitive GST account information unnecessarily when sharing screenshots publicly.

Common Causes of the GST URL Rejected Error

There is no single cause for every occurrence. The following are common possibilities.

3. Expired Browser Session

GST portal sessions are security-sensitive.

If a page remains open for a long period, the authentication session may expire while an old tab continues to contain a URL associated with the previous session.

Clicking an action from that old page can result in a rejected request.

Solution

1. Close the affected GST tabs.
2. Open a new browser window.
3. Visit the GST portal normally.
4. Log in again.
5. Navigate to the required function through the portal menus.

Avoid restoring an old GST tab immediately.

4. Opening an Old Bookmark or Saved GST URL

Some GST application pages may depend on session information or navigation performed earlier in the portal.

A bookmarked internal URL may therefore stop working correctly.

Instead of opening a deep internal URL directly, start from the main GST portal and navigate through the normal menus.

5. Corrupted or Stale GST Cookies

Cookies are used for authentication, security validation and session management.

Old or inconsistent cookies can cause the browser and server to disagree about the state of the current session.

A good troubleshooting step is therefore to remove the GST portal's site data and establish a fresh session.

In Google Chrome

Open:

Settings → Privacy and security → Third-party cookies → See all site data and permissions

Search for:

gst.gov.in

Remove the associated site data.

The exact wording of Chrome settings can vary between versions.

Then:

1. Close all GST tabs.
2. Restart Chrome.
3. Open the GST portal.
4. Sign in again.

6. Test GST Portal in Incognito Mode

Incognito mode provides an excellent diagnostic test because it starts with a comparatively clean browser session.

In Chrome press:

Ctrl + Shift + N

Then open the GST portal and test the same operation.

If GST works in Incognito mode

The problem is more likely associated with the normal Chrome profile, such as:

• Cookies
• Cached site data
• An extension
• Existing authentication state
• Browser profile configuration

This narrows down the troubleshooting considerably.

7. Browser Extensions Can Interfere With GST Requests

Some extensions modify webpages or HTTP/HTTPS requests.

Potentially relevant extensions include:

• Ad blockers
• Privacy extensions
• Script blockers
• Antivirus browser extensions
• Web filtering extensions
• VPN extensions
• Proxy extensions
• Download managers
• Security inspection tools

Temporarily disable nonessential extensions and test the GST portal again.

In Chrome, enter:

chrome://extensions

Disable extensions temporarily, restart the browser and retest.

Re-enable required extensions after testing.

8. VPN or Proxy Can Cause the Problem

A VPN changes the route and normally the public IP address used to reach the GST portal.

Corporate proxies can also modify or inspect web traffic.

If you are connected through:

• VPN
• Proxy server
• Secure web gateway
• Cloud security service
• Corporate Internet filtering service

temporarily test without it, where permitted by your organization's security policy.

Windows Proxy Check

Go to:

Settings → Network & Internet → Proxy

Check whether a manual proxy has been configured.

Do not disable an organization-managed proxy without authorization.

9. Public IP Address or Network-Related Rejection

This is an especially useful area to test in offices.

Many computers can share one Internet-facing public IP address through NAT.

For example:

25 Office Computers → Router → One Public IP → GST Portal

If requests associated with that public IP are temporarily rejected or subjected to a security control, multiple computers on the same Internet connection could potentially experience similar symptoms.

Simple Diagnostic Test: Mobile Hotspot

Connect the affected computer to a mobile hotspot temporarily.

Then open the GST portal again.

Interpretation

GST works through hotspot but not office broadband

This strongly points toward a difference in the original network path, such as:

• Public IP
• ISP path
• Router/firewall
• DNS
• Proxy
• Network security filtering

It does not by itself prove that the public IP is blocked, but it is a very useful isolation test.

GST fails on both connections

Investigate the browser, session, computer configuration and possible GST-side issue next.

10. Test From Another Computer on the Same Network

This test helps separate a computer-specific problem from a network-wide problem.

Suppose:

Computer A → Error
Computer B → Works

The issue is more likely related to Computer A or its browser profile.

But if:

Computer A → Error
Computer B → Error
Computer C → Error

while all use the same Internet connection, investigate the network/public IP path more closely.

11. Test Another Browser

If Chrome is producing the error, try a currently supported browser such as Microsoft Edge.

If the portal works in another browser, the issue may involve the original browser's:

• Cookies
• Cache
• Extensions
• Profile
• Settings

Do not immediately reset the entire browser. First identify whether the problem is actually browser-specific.

12. Clear DNS Cache

Windows maintains a local DNS resolver cache.

Although DNS is not the most obvious cause of a page-level WAF rejection, flushing the cache is a safe diagnostic step when investigating broader connectivity problems.

Open Command Prompt as Administrator and run:

ipconfig /flushdns

You should receive a confirmation similar to:

Successfully flushed the DNS Resolver Cache.

Restart the browser and test again.

13. Check DNS Resolution

Open Command Prompt and run:

nslookup gst.gov.in

If DNS resolution fails, investigate:

• ISP DNS
• Router DNS
• Windows DNS configuration
• Firewall
• DNS filtering
• Corporate security software

However, if the GST rejection page itself loads, DNS has generally already succeeded sufficiently to reach some GST-related web infrastructure. Therefore, DNS should not automatically be assumed to be the cause.

14. Check Windows Date and Time

Incorrect system time can cause problems with secure websites and authentication systems.

Check:

Settings → Time & language → Date & time

Enable appropriate automatic time synchronization and verify:

• Date
• Time
• Time zone

For users in India, the normal time zone is:

(UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi

15. Antivirus and Web Protection

Modern antivirus products may include:

• HTTPS inspection
• Web Shield
• Safe Browsing
• Web Protection
• URL filtering
• Network protection

These components can sometimes interfere with secure web applications.

If organizational policy allows it, an administrator can temporarily test whether a web-inspection component is involved.

Security Warning

Do not permanently disable antivirus or firewall protection simply to make the GST portal work.

The objective should be to identify the conflicting component and configure it correctly.

16. Corporate Firewall or UTM

Businesses may use firewalls and Unified Threat Management appliances that perform:

• SSL inspection
• URL filtering
• Intrusion prevention
• Application control
• DNS filtering
• Web reputation filtering

If GST works through a mobile hotspot but fails through the corporate Internet connection, inspect the firewall and security gateway logs.

Look for requests involving the GST domain being:

• Blocked
• Reset
• SSL-inspected
• Categorized incorrectly
• Redirected
• Filtered

17. GST Portal on Windows Server / RDP Environments

CA firms, accounting offices and corporate environments frequently operate GST, Tally and taxation software from Remote Desktop servers.

A typical environment may look like:

20–30 RDP Users → Windows Server → Office Gateway → One Public IP → GST Portal

This means many users may access GST-related services from the same server/network infrastructure.

If only one RDP user has the problem, investigate that user's browser profile and session.

If all RDP users suddenly receive the same rejection, investigate:

• Common Internet connection
• Public IP
• Firewall
• Proxy
• DNS
• GST-side availability/security behaviour

This distinction can save considerable troubleshooting time.

18. Multiple GST Tabs

Keeping many authenticated GST pages open simultaneously can complicate troubleshooting, particularly when some tabs were opened under an earlier session.

When the rejection occurs:

1. Close old GST tabs.
2. Sign out if possible.
3. Close the browser.
4. Reopen it.
5. Start a new GST session.
6. Use one tab initially.
7. Navigate to the required function normally.

19. Avoid Repeatedly Refreshing a Rejected Request

If a security gateway is rejecting a request, repeatedly pressing F5 may simply resend the same request.

Instead:

Close affected tab → Start fresh session → Navigate normally

If that fails, move to the network-isolation tests.

20. Check Whether GST Portal Is Experiencing a Wider Problem

Sometimes the problem may be on the service side rather than the user's computer.

If several unrelated Internet connections or devices suddenly show the same GST portal problem, check the GST portal's official notices/help resources for service-related information.

A temporary server or security-system issue may resolve without any change to the computer.

Recommended Troubleshooting Sequence

Rather than changing many Windows settings at once, use the following order.

Step 1 – Start a Fresh Session

Close GST tabs and reopen the GST portal from its normal starting point.

Step 2 – Use Incognito Mode

Press:

Ctrl + Shift + N

Test GST again.

Step 3 – Try Another Browser

Test using Microsoft Edge or another supported browser.

Step 4 – Clear GST Site Data

Remove cookies/site data associated with GST and sign in again.

Step 5 – Disable Nonessential Browser Extensions Temporarily

Pay particular attention to VPN, proxy, ad-blocking and web-security extensions.

Step 6 – Test Another Computer

Use another computer on the same Internet connection.

Step 7 – Test a Mobile Hotspot

This is one of the most valuable network-isolation tests.

Step 8 – Check Proxy/VPN

Remove an unnecessary VPN or proxy from the test path.

Step 9 – Flush DNS

Run:

ipconfig /flushdns

Step 10 – Investigate Firewall/UTM

This is especially relevant if every computer on the office connection has the same problem.

Step 11 – Preserve the Support ID

Take a screenshot and record the date/time.

Step 12 – Contact GST Support

If the problem continues, provide the Support ID and troubleshooting observations to the GST helpdesk through the official GST support channels.

A Useful Diagnostic Matrix

Test	Result	Likely Area to Investigate
Normal Chrome fails, Incognito works	Browser/session issue	Cookies, cache, extensions
Chrome fails, Edge works	Browser-specific issue	Chrome profile/settings
One PC fails, other PCs work	PC-specific	Browser, antivirus, Windows configuration
All PCs on office Internet fail	Network/common path	Router, firewall, proxy, public IP, ISP
Office Internet fails, hotspot works	Network-path issue	Public IP, firewall, proxy, ISP
Office and hotspot both fail	Not isolated to office Internet	Browser/device/session or portal-side issue
Only old GST link fails	URL/session issue	Navigate from GST homepage
Many RDP users fail simultaneously	Shared infrastructure	Server/network/public IP/portal-side issue

This matrix can prevent unnecessary Windows changes.

How to Determine Whether the Public IP Is Involved

First find the office's public IP using an appropriate IP-checking service.

Then perform the GST test.

Next, connect through a different Internet connection, such as a mobile hotspot.

If the GST portal works through the alternate connection, the original public IP/network path becomes a significant troubleshooting lead.

However, avoid concluding that the IP has definitely been “blacklisted” without confirmation from the relevant service provider or GST technical support.

Should You Restart the Router?

Restarting a router can help with some connectivity problems.

It may also result in a different public IP if the ISP provides a dynamic IP address.

However, this depends entirely on the ISP.

With a static IP connection, restarting the router normally will not change the assigned public IP.

Therefore, router rebooting should not be treated as a guaranteed fix.

Should You Reinstall Chrome?

Usually no.

Reinstalling the browser should not be the first troubleshooting step.

Start with:

Fresh session → Incognito → Clear GST site data → Disable extensions → Alternate browser → Alternate network

Only consider browser repair/reset/reinstallation after the problem has been isolated to that browser installation.

Should You Reinstall Windows?

Almost certainly not as an initial solution.

A URL rejected by a web security layer generally does not justify reinstalling Windows.

Perform network and browser isolation tests first.

What Information Should Be Sent to GST Support?

Prepare the following information:

• Screenshot of the complete error
• Support ID displayed on the rejection page
• Date and time when the problem occurred
• Browser name
• Browser version
• Windows version
• GST page/function being accessed
• Whether Incognito mode worked
• Whether another browser worked
• Whether another computer worked
• Whether a mobile hotspot worked
• Whether the issue affects multiple users
• Whether VPN/proxy is being used

Do not include passwords, OTPs or other authentication secrets.

Important Security Precautions

While troubleshooting GST portal access:

• Never share your GST portal password.
• Never share OTPs with support personnel.
• Do not install unknown “GST repair” applications.
• Do not permanently disable antivirus protection.
• Do not disable an organizational firewall merely to test GST.
• Do not execute scripts from unknown sources.
• Verify that you are using the legitimate GST portal.
• Be cautious of fake GST support websites and phishing pages.
• Preserve the Support ID if the rejection continues.

Technical Summary

The error:

“The requested URL was rejected. Please consult with your administrator.”

generally means that a web request has been rejected somewhere in the web application's security/request-processing path.

Possible causes include:

Browser session → Cookies → Extensions → VPN/Proxy → Endpoint security → Corporate firewall → Public IP/network path → GST security infrastructure/application

The most efficient troubleshooting approach is therefore isolation, not random configuration changes.

A particularly useful sequence is:

Incognito → Different browser → Different computer → Different Internet connection

Each test eliminates a large category of possible causes.

Frequently Asked Questions (FAQ)

1. Why does the GST portal say “The requested URL was rejected”?

The requested web transaction may have been rejected by a security or request-validation layer. Possible causes include an invalid/expired session, browser data, URL state, extensions, VPN/proxy, network security controls or a portal-side condition.

2. Does this mean my GST account has been blocked?

Not necessarily. A rejected URL does not by itself prove that the GST registration or user account has been blocked.

3. What is the Support ID shown on the page?

It is an identifier associated with the rejected request. Preserve it because technical support may use it while investigating the incident.

4. Should I send the Support ID to GST support?

Yes, if the issue persists. Also provide the approximate date/time and screenshot.

5. Can Chrome cookies cause this error?

They can contribute to session-related problems. Testing Incognito mode and clearing GST-specific site data are useful diagnostic steps.

6. Why does GST work in Incognito but not normal Chrome?

This usually indicates a difference in cookies, site data, extensions or the browser profile.

7. Should I clear all Chrome history?

Not initially. Clearing GST-specific site data is less disruptive.

8. Can an old GST bookmark cause a problem?

Potentially. Internal application URLs can depend on session state. Navigate from the main portal instead.

9. Can multiple GST tabs create problems?

They can complicate session troubleshooting, particularly if tabs belong to different or expired sessions.

10. Can my office public IP cause the error?

It is possible for the network/public-IP path to be involved. A mobile-hotspot comparison is a useful way to test this hypothesis.

11. How do I know whether my office Internet is responsible?

Test GST from the same computer using another Internet connection. If the problem disappears, investigate the original network path.

12. Can I test using my mobile hotspot?

Yes. It is one of the quickest ways to distinguish a local browser/computer issue from an office network/public-IP-related issue.

13. Why would all computers in my office show the same GST error?

They may share common infrastructure such as the same router, firewall, proxy, ISP connection or public IP.

14. Why does only one computer show the error?

The problem may be local to that computer's browser profile, cookies, extensions, endpoint security or network configuration.

15. Can VPN cause GST portal problems?

A VPN can change the public IP and network route and can therefore affect access to security-sensitive websites.

16. Can a proxy server interfere with GST?

Yes. A proxy may inspect, modify or route HTTPS traffic differently.

17. Can antivirus cause the GST URL rejection?

Certain web-protection or HTTPS-inspection components can affect web applications. Test only in accordance with your organization's security policy.

18. Should I disable Windows Firewall?

Generally no. Disabling the firewall should not be a routine fix for this problem.

19. Can DNS cause GST problems?

DNS problems can prevent access to the site. However, if a GST-generated rejection page is already being displayed, a simple DNS failure is less likely to explain that specific request.

20. How do I clear Windows DNS cache?

Open Command Prompt as Administrator and run:

ipconfig /flushdns

21. Can incorrect Windows time cause GST login problems?

Incorrect date, time or time zone can interfere with secure authentication and certificates, so they should be checked.

22. Should I reinstall Chrome?

Not initially. Perform browser and network isolation tests first.

23. Should I reinstall Windows?

No. Reinstalling Windows is far too drastic until the problem has been conclusively isolated to the operating system.

24. Why does the GST homepage work but an internal page fail?

The internal request may have additional authentication, session or security requirements that the homepage does not.

25. What should I do if the error keeps returning?

Record the Support ID, screenshot and date/time, perform the isolation tests described above, and contact the official GST support service if the problem persists.

Disclaimer

This article is intended for general technical troubleshooting and educational purposes only. GST portal infrastructure, browser requirements, security mechanisms, menu locations and support procedures can change over time.

Do not disable organizational security controls or modify production firewall, proxy or antivirus policies without appropriate authorization. For persistent GST portal errors, tax-account issues, filing problems or official clarification, contact the appropriate GST/GSTN support channel or consult a qualified tax professional where applicable.

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