Fixing AISSEE 2026 Portal Issues: Website Not Loading & OTP Not Received Solutions

Rajan called me at 9 PM last Tuesday.

"Sharma ji, I've been trying to register on the AISSEE portal since morning. Website keeps showing blank page. And when it finally loaded once, I entered my number for OTP — nothing came. Tried four times. No OTP. Registration deadline is day after tomorrow. I don't know what to do."

He wasn't panicking without reason. Deadline was real. And this exact problem — portal not loading, OTP not arriving — trips up hundreds of families every single registration season.

Here's the thing nobody tells you: Most of these issues have simple fixes. But only if you know what to try. Randomly refreshing and hoping is not a strategy.

This guide covers every portal problem parents face during AISSEE registration and counselling — and the actual solution for each one.

Why The Portal Has Problems In The First Place

Before solutions, understand why this happens. Helps you stay calm when it does.

The AISSEE portal — whether it's the NTA portal for exam registration or the AISSAC portal for e-counselling — serves lakhs of users. But it's a government portal. Not built like Amazon or Google with unlimited server scaling.

When deadlines approach, thousands of parents rush to register simultaneously. Server gets overwhelmed. Pages load slowly or not at all. Sessions timeout. OTPs get delayed in the queue.

This is infrastructure limitation, not a specific problem with your registration. Your data is safe. The portal isn't rejecting you personally. It's just overwhelmed.

Knowing this keeps you from catastrophizing when the blank page appears.

Problem 1: Website Not Loading At All

What you see: Blank white page. Browser spinning endlessly. "This site can't be reached" error. Or page starts loading and freezes halfway.

Solution set — try in this order:

Fix 1: Try a different browser

If you're on Chrome, switch to Firefox. If Firefox, try Edge or Opera. Some browsers handle heavy government portals better than others on specific days. Takes 30 seconds to try.

Fix 2: Clear browser cache completely

Your browser stores old versions of websites. Sometimes cached old version conflicts with current live version and causes loading failure.

Chrome: Press Ctrl + Shift + Delete → Select "All time" → Check Cookies and Cached images → Clear data. Then try again.

Fix 3: Switch from WiFi to mobile data

Your home WiFi might be sharing an IP address with many devices. Some portals rate-limit per IP. Switch to mobile hotspot — different IP address, often gets through when WiFi can't.

Fix 4: Try incognito/private mode

Press Ctrl + Shift + N in Chrome for incognito. This opens browser with no cached data, no extensions interfering. Try portal in incognito mode.

Fix 5: Disable browser extensions temporarily

Ad blockers, VPNs, security extensions — these sometimes block government portal scripts. Disable all extensions, try again.

Fix 6: Try different time of day

Portal is most overloaded between 10 AM and 6 PM when everyone is trying. Late night (10 PM - 12 AM) or early morning (5 AM - 7 AM) — server load is much lower. Access is significantly faster.

Fix 7: Check if portal is down for everyone

Go to downdetector.com or isitdownrightnow.com and search for the portal URL. If it shows widespread outage, nothing you can do except wait. Usually resolves in 1-3 hours.

Understanding common registration mistakes shows that portal access issues are among the most frequent problems families face — and almost always solvable.

Problem 2: OTP Not Received

This is the most frustrating one. Portal finally loads. You enter mobile number. Click "Send OTP." Wait. Wait more. Nothing.

Reasons OTP doesn't arrive:

Mobile network congestion. SMS gateway delay on portal's end. Wrong number entered (one digit off). DND activated on your number. Number not registered with Airtel/BSNL/Jio properly. Bulk SMS filter treating OTP as spam.

Solution set:

Fix 1: Wait longer than you think

OTP doesn't always arrive in 30 seconds. During high traffic periods, SMS delivery can take 5-8 minutes. Most parents click "Resend" after 60 seconds and create a queue of 4-5 OTPs all arriving together causing confusion. Wait at least 5 full minutes before clicking resend.

Fix 2: Check number entered carefully

Before doing anything else — go back and verify the mobile number you entered. One wrong digit means OTP goes to someone else. Parents often enter old numbers or numbers with a typo in the hurry.

Fix 3: Check if DND is active

Dial 1909 from your number and check DND status. If DND is active for promotional messages, some OTP services get blocked. You can deactivate DND or whitelist transactional SMS.

Fix 4: Try with a different number

If your number has persistent issues, use spouse's number or another family member's number. As long as you have access to receive OTP on that number and it's a valid number, it works.

Fix 5: Check SMS inbox carefully

Sometimes OTP arrives but in spam/promotional folder of SMS app. Some Android phones auto-filter. Check all folders in messages app, not just main inbox.

Fix 6: Restart phone before trying again

Basic but works. Phone restart refreshes network connection. Sometimes solves OTP delivery issues that persist across multiple attempts.

Fix 7: Try after switching networks

If on Jio, switch to Airtel SIM or vice versa. Different networks have different SMS gateway connections to government portals. One might work when other is having issues.

Problem 3: Session Timeout Mid-Registration

What happens: You're filling the registration form. Step 3 of 6. You leave to get a document. Come back. "Session expired. Please login again." Everything you filled is gone.

Why it happens: Government portals have short session timeouts — typically 15-20 minutes of inactivity. Security feature. Frustrating but intentional.

Prevention:

Before starting registration, have every single document and piece of information ready. All open in separate browser tabs or printed out. Don't leave the form to search for anything.

Keep clicking "Save" or "Next" regularly. Active interaction resets the session timer.

If you must step away — save whatever the portal allows before stepping away. Don't assume it'll wait.

If it happens:

Log back in. Check if portal saved any progress from your previous session. Some portals do auto-save partially. Some don't. Start from where you left off or from beginning if needed.

Annoying? Yes. End of the world? No. The portal doesn't blacklist you for session timeout. Just start again with everything ready this time. Going through what documents to keep ready before touching the portal makes session timeout a non-issue.

Problem 4: Login Credentials Not Working

Scenario A: First time login after registration

Portal asks for roll number and password. Roll number works. Password doesn't. "Invalid credentials" error.

Most common cause: Password was entered incorrectly during creation — many portals require specific format (capital letter, number, special character) and if you missed one requirement, the password you think you set wasn't actually set.

Fix: Use "Forgot Password" option. Enter registered mobile/email. Get reset link or OTP. Set new password carefully this time. Write it down physically immediately after setting.

Scenario B: Returning to portal after a few days

Was working fine earlier. Now says invalid. Browser autofill entered wrong saved password.

Fix: Clear the autofilled password from login field. Type manually. Carefully.

Scenario C: Roll number not recognized

Double check roll number from original admit card. Not from memory. Not from photo of admit card. From the actual printed document. A single digit difference returns "not found."

Also verify which portal you're on — NTA registration portal and AISSAC counselling portal are different. Roll number for one may not work on other without proper registration on that specific portal first.

Problem 5: Document Upload Failing

What happens: You select the file. Click upload. Progress bar starts. Freezes. Error message. Or file uploads but shows "invalid format" even though it's a JPG.

Fix 1: Check file size

Most portals have file size limit — usually 50KB to 200KB for photographs and 200KB to 500KB for certificates. If your scan is 3MB, it will fail. Compress using free online tools like ilovepdf.com or tinypng.com.

Fix 2: Check file format

Portal says "JPG only" — but you scanned as PNG or PDF. Convert to JPG before uploading. Free conversion tools available online.

Fix 3: Check file name

Files named with special characters (brackets, slashes, apostrophes) sometimes fail on upload. Rename file to simple alphanumeric name. "domicile_certificate.jpg" works better than "Domicile (Original) - Rahul's.jpg"

Fix 4: Try different browser for upload

Upload functionality sometimes works on Firefox when Chrome is having issues or vice versa.

Fix 5: Try uploading one document at a time

Don't batch upload. Each document individually. Slower but more reliable on government portals.

Problem 6: Payment Failed But Money Deducted

Most stressful scenario. You paid registration fee. Transaction ID appeared briefly. Then portal showed error. Money gone from account. No confirmation.

Don't panic. Don't pay again.

This is the most important instruction. Double payment creates bigger problems than single payment with pending confirmation.

What to do:

Note down transaction ID if you saw it even briefly (check browser history if page loaded even partially).

Check bank account/UPI app for transaction details. Screenshot everything.

Wait 24-48 hours. Most failed transactions auto-reverse in this window. Bank shows it as "pending" then reverses.

Check registered email for payment confirmation from portal. Sometimes confirmation arrives by email even when browser page didn't load properly.

If money not reversed after 48 hours — contact bank with transaction details. They will escalate with payment gateway.

If portal shows your registration as incomplete despite payment going through — contact NTA helpline with transaction proof. They have a process for reconciling payment vs registration status.

Problem 7: Registered But Not Receiving Any Emails

Registration done. Portal shows complete. But no confirmation email. No further communication.

Fix 1: Check spam folder

Government portal emails frequently land in spam. Gmail especially filters them aggressively. Check Promotions and Spam tabs.

Fix 2: Check email address entered

Go back to portal profile. Verify email address shown. One wrong letter means emails go nowhere. If wrong — update immediately in profile settings.

Fix 3: Add portal email to safe senders

Find the "from" address of any portal email you have received. Add it to contacts or whitelist in email settings. Future emails won't go to spam.

Fix 4: Create separate email for exam registrations

Many parents use primary personal email which is cluttered. Create a dedicated Gmail for AISSEE registration. Easier to track. Nothing gets lost in other emails.

The OTP Timer Trap — Don't Fall Into This

Parents click "Send OTP." Wait 45 seconds. Nothing. Click "Resend." Wait 30 seconds. Click "Resend" again. And again.

Now 4 OTPs are queued in the SMS gateway. They arrive one minute later — all four simultaneously. First one is expired (OTPs have 5-10 minute validity on government portals). Second one works but you enter third one. Error. Confusion.

The rule: Send OTP once. Wait full 5 minutes. If nothing, resend once. Wait again. Don't spam resend button.

What To Do If Nothing Works And Deadline Is Close

You've tried everything. Portal still not cooperating. Deadline is tomorrow.

Step 1: Document everything

Screenshot every error message. Note exact time and date. Note what you tried. This documentation is essential if you need to request extension.

Step 2: Email NTA/AISSAC with documentation

Both NTA and Sainik School Society have official email IDs for grievances. Write formal email explaining situation with screenshots attached. Request deadline extension due to technical issues.

Step 3: Call helpline during off-peak hours

NTA helpline: 011-40759000. Gets flooded during peak hours. Call early morning (8-9 AM) or late evening (7-8 PM). State problem clearly. Request escalation if first person can't help.

Step 4: Try from different device entirely

Different phone. Friend's laptop. Cyber cafe computer. Sometimes the issue is device-specific — old browser version, incompatible OS, hardware limitation.

Understanding the complete e-counselling process and keeping track of all deadlines means you're never working on portal issues with only hours to spare.

Prevention Is Better Than Crisis Management

Best strategy is not needing these fixes in the first place.

Start registration 5-6 days before deadline. Not 1-2 days before.

This gives you time to face portal issues calmly. You have days to try different fixes. No panic. No emergency emails to NTA.

Families that start early almost never face deadline crisis. Families that start day before deadline? Every portal hiccup becomes an emergency.

For everything about preparing smartly for AISSEE and navigating the complete admission process, Sainik Study has been guiding families through exactly these challenges for over 10 years.

Bottom Line

Portal not loading: Try different browser, clear cache, switch to mobile data, incognito mode, try off-peak hours.

OTP not received: Wait 5 full minutes first, check number is correct, check DND status, try different SIM, check spam in SMS app.

Session timeout: Have all documents ready before starting, keep interacting with portal, save progress frequently.

Login not working: Use forgot password option, don't use browser autofill, verify roll number from original document.

Document upload failing: Check file size under limit, correct format, simple file name, try one at a time.

Payment deducted but no confirmation: Don't pay again, wait 48 hours for auto-reversal, keep transaction proof.

Nothing working near deadline: Document errors, email NTA with screenshots, call helpline in off-peak hours, try different device.

Most importantly: Start 5-6 days before deadline. Portal problems are manageable with time. They become disasters without it.