Last visit was: 19 Nov 2025, 12:15 It is currently 19 Nov 2025, 12:15
Home
GMAT
Messages
Tests
Schools
Events
Rewards
Chat
My Profile
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
   1   2   3   4   
avatar
youdzi
avatar
Joined: 25 Jul 2020
Last visit: 01 Jun 2021
Posts: 2
Given Kudos: 9
Posts: 2
Kudos: 0
Signature Verification Failed 02 Nov 2020, 11:12
Kudos
Add Kudos
Bookmarks
Bookmark this Post
still the same issue. has been 24 hours now.
User avatar
akshitab2912
User avatar
Joined: 24 Jan 2020
Last visit: 06 Aug 2025
Posts: 26
Own Kudos:
7
Given Kudos: 184
Posts: 26
Kudos: 7
Signature Verification Failed 02 Nov 2020, 11:27
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Adesuwa
I am getting the same issue as well? please let us know if anyone is able to fix this, thx
Show more


Hey, I am facing the same problem! You could resolve it?
avatar
frombelarus
avatar
Joined: 30 Jan 2020
Last visit: 03 Oct 2022
Posts: 12
Own Kudos:
26
Given Kudos: 222
Location: Belarus
Schools: HEC Sept 23 Intake
Schools: HEC Sept 23 Intake
Posts: 12
Kudos: 26
Signature Verification Failed 02 Nov 2020, 12:46
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I am not able to access the review tests too!
avatar
Jojogmat
avatar
Joined: 13 Jan 2020
Last visit: 16 Dec 2021
Posts: 2
Own Kudos:
6
 [2]
Given Kudos: 79
GMAT 1: 690 Q47 V36
Products:
My Reviews
GMAT 1: 690 Q47 V36
Posts: 2
Kudos: 6
 [2]
Signature Verification Failed 02 Nov 2020, 13:03
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Same here.. I called them this morning, apparently they joust found out this monday morning about the issue that started on saturday because they dont work on weekends. They said the tech support team is working on it.. I really hope they fix the problem today
avatar
youdzi
avatar
Joined: 25 Jul 2020
Last visit: 01 Jun 2021
Posts: 2
Given Kudos: 9
Posts: 2
Kudos: 0
Signature Verification Failed 02 Nov 2020, 13:11
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Jojogmat
Same here.. I called them this morning, apparently they joust found out this monday morning about the issue that started on saturday because they dont work on weekends. They said the tech support team is working on it.. I really hope they fix the problem today
Show more

Thanks for the update! just wait then!
avatar
ouwhee987
avatar
Joined: 20 Oct 2020
Last visit: 22 Apr 2021
Posts: 1
Given Kudos: 1
Posts: 1
Kudos: 0
Signature Verification Failed 02 Nov 2020, 13:13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Yup, got the same problem after finishing a prac test on Saturday I couldn't review it.
User avatar
Mizar18
User avatar
Joined: 28 Jan 2019
Last visit: 23 Oct 2025
Posts: 177
Own Kudos:
266
 [3]
Given Kudos: 130
Location: Peru
Posts: 177
Kudos: 266
 [3]
Signature Verification Failed 02 Nov 2020, 15:04
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
This is the reply I got a few minutes ago from mba customer care:

Thank you for contacting mba.com Customer Care. We apologize for any frustrations you have experienced with the GMAT Official Practice platform. There is a technical issue impacting the Review Exam feature of the Practice Exams, resulting in the error "signature verification process failed". Our team is diligently working to resolve this issue. You will be contacted via email as soon as this issue has been resolved.

We apologize again and thank you for your patience.

Regards,

best,
avatar
SS1995
avatar
Joined: 16 Jun 2020
Last visit: 02 Jun 2025
Posts: 2
Given Kudos: 3
Posts: 2
Kudos: 0
Signature Verification Failed 02 Nov 2020, 18:05
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Still facing the same issue! Did any of you get a response to your e-mail to GMAC?
avatar
ET10
avatar
Current Student
Joined: 07 Sep 2020
Last visit: 13 Aug 2021
Posts: 19
Own Kudos:
20
Given Kudos: 33
Location: United States (WA)
Schools: Fuqua '23 (WL) Tepper '23 (A) Harvard '23 (D) Sloan '23 (D)
GMAT 1: 690 Q43 V41
GPA: 3.64
Schools: Fuqua '23 (WL) Tepper '23 (A) Harvard '23 (D) Sloan '23 (D)
GMAT 1: 690 Q43 V41
Posts: 19
Kudos: 20
Signature Verification Failed 02 Nov 2020, 19:05
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Still no fix! Tried different browser. Tried clearing cookies. Tried logging out then logging back in. Hopefully it is fixed by tomorrow.
avatar
jv123
avatar
Joined: 07 Jan 2020
Last visit: 16 Jan 2023
Posts: 11
Own Kudos:
5
 [1]
Given Kudos: 116
Schools: INSEAD MiM "22 HEC MiM "23 ESSEC MiM "23 EDHEC MiM (BM)"23
Schools: INSEAD MiM "22 HEC MiM "23 ESSEC MiM "23 EDHEC MiM (BM)"23
Posts: 11
Kudos: 5
 [1]
Signature Verification Failed 02 Nov 2020, 23:20
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Same issue here! Just finished Exam 4, I can see my score breakdown in Quant and Verbal. But unable to access 'Review your Responses'
avatar
smac10
avatar
Joined: 02 Nov 2020
Last visit: 03 Nov 2020
Posts: 1
Given Kudos: 1
Posts: 1
Kudos: 0
Signature Verification Failed 03 Nov 2020, 00:06
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I wonder if it has to do with daylight savings? Looking at the source code I see the below:
Where the lblError = the Signature Verification Process Failed span id. the GetTimeZoneInfo() method seems to be the only thing calling and catching this lblError label. Since most of the issues have occurred within the last 24/48 hours, I bet there's a piece of code that wasn't updated to account for daylight savings.

</div>
<div class="err_typ">
<span id="lblError">Signature verification process failed</span>
</div>

GetTimeZoneInfo();
try {
$(document).ready(function () {

if ($("#lblError") != null && $("#lblError").innerHTML != "") {
$("#dvLoading").html($("#lblError").html());
$("#divError").hide();
}
});
} catch (e) { }
avatar
prakhar42
avatar
Joined: 17 Jul 2019
Last visit: 16 Nov 2020
Posts: 3
Own Kudos:
1
 [1]
Location: India
Schools: IE '22 (S)
GMAT 1: 610 Q48 V24
Schools: IE '22 (S)
GMAT 1: 610 Q48 V24
Posts: 3
Kudos: 1
 [1]
Signature Verification Failed 03 Nov 2020, 00:22
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Yes, even I felt that my score was elevated by 20 points.
avatar
Raves1
avatar
Joined: 26 Jun 2020
Last visit: 29 Aug 2021
Posts: 3
Own Kudos:
1
 [1]
Location: India
Posts: 3
Kudos: 1
 [1]
Signature Verification Failed 03 Nov 2020, 01:01
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I got logged out while going through the site and am not even able to login now, restarted the laptop, tried with multiple browsers and wifi speed is also alright.

Is anyone else also facing issues logging in?
avatar
greenbear
avatar
Joined: 12 Jan 2019
Last visit: 18 Mar 2021
Posts: 10
Own Kudos:
14
Given Kudos: 71
Location: Singapore
Concentration: Marketing
GPA: 3.45
WE:Marketing (Energy)
Posts: 10
Kudos: 14
Signature Verification Failed 03 Nov 2020, 01:51
Kudos
Add Kudos
Bookmarks
Bookmark this Post
:thumbsup: maybe you should write to them and they can fix it soon!
I am getting this error since last weekend, GMAT coming soon :D :please:
smac10
I wonder if it has to do with daylight savings? Looking at the source code I see the below:
Where the lblError = the Signature Verification Process Failed span id. the GetTimeZoneInfo() method seems to be the only thing calling and catching this lblError label. Since most of the issues have occurred within the last 24/48 hours, I bet there's a piece of code that wasn't updated to account for daylight savings.

</div>
<div class="err_typ">
<span id="lblError">Signature verification process failed</span>
</div>

GetTimeZoneInfo();
try {
$(document).ready(function () {

if ($("#lblError") != null && $("#lblError").innerHTML != "") {
$("#dvLoading").html($("#lblError").html());
$("#divError").hide();
}
});
} catch (e) { }
Show more
avatar
ShwetaSingh1212
avatar
Joined: 03 Oct 2019
Last visit: 13 Apr 2021
Posts: 4
Own Kudos:
4
 [1]
Given Kudos: 267
Posts: 4
Kudos: 4
 [1]
Signature Verification Failed 03 Nov 2020, 03:31
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I am facing this issue since yesterday.Sent mail to support.Just received an automated response :-( My GMAT exam is scheduled for friday :-(
User avatar
jonashex
User avatar
Joined: 03 Nov 2020
Last visit: 19 Nov 2020
Posts: 5
Posts: 5
Kudos: 0
Signature Verification Failed 03 Nov 2020, 06:52
Kudos
Add Kudos
Bookmarks
Bookmark this Post
vibha31
globaldesi
vibha31
Hello, I took the official GMAT Prep Test 5 last night. I want to check my performance but when I click on 'view performance', I am taken to a page that says 'signature verification failed'

Any idea what the problem is and how it can be fixed?

Thanks!

Posted from my mobile device

Even i started getting this error. For me clearing cookies , and then logout , quit chrome and sometimes restart my machine works.

And after a couple of retires , It goes on it own.



I tried all that but it didn't work. Tried from a different browser as well.
How long did it take for the issue to resolve?
Show more

when I use a different browser the problem disappears
avatar
maxtbk
avatar
Joined: 01 Apr 2020
Last visit: 04 Nov 2020
Posts: 1
Posts: 1
Kudos: 0
Signature Verification Failed 03 Nov 2020, 07:03
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi, I have the same problem. Has anyone received a response yet or a solution?
User avatar
Mizar18
User avatar
Joined: 28 Jan 2019
Last visit: 23 Oct 2025
Posts: 177
Own Kudos:
266
 [3]
Given Kudos: 130
Location: Peru
Posts: 177
Kudos: 266
 [3]
Signature Verification Failed 03 Nov 2020, 13:57
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Update from mba customer care support:

Hi

We believe we have identified the issue causing the Signature Verification Process Failed error.

GMAT Official Practice will be unavailable:
While the fix is deployed Wednesday, November 4th 1:30 AM to 4:00 AM US Eastern Time
During monthly maintenance Wednesday, November 4th, 5:30 PM to 10:00 PM US Eastern Time

We apologize for any inconvenience this may cause, we know taking the site down twice in one day is not ideal, but we want to deploy the fix as soon as possible.

Please save your data and logout before the maintenance window. At the start of the update, any active accounts will be logged out and will need to log back in.

After the fix is deployed, if you are still receiving the error:

Close all GMAT Official Practice tabs on all of your devices
Clear your cookies/cache - When clearing your browsing data, please ensure you have All Time (if using Google Chrome) selected
Close your browser and re-open a new one
Login to your mba.com account.
Access GMAT Official Practice


If the above does not work, to troubleshoot this matter, please provide the below information:


1. Browser Used
2. Screenshot of error (if possible)
3. Your location
4. Internet Connection
5. Operating System and version (screenshot, if possible)


Best,
avatar
ianjhoom
avatar
Joined: 05 Oct 2020
Last visit: 25 Dec 2020
Posts: 1
Given Kudos: 8
Posts: 1
Kudos: 0
Signature Verification Failed 03 Nov 2020, 15:58
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Great! Thank you so much for the update.
User avatar
bb
User avatar
Founder
Joined: 04 Dec 2002
Last visit: 19 Nov 2025
Posts: 42,385
Own Kudos:
82,118
 [1]
Given Kudos: 24,107
Location: United States
GMAT 1: 750 Q49 V42
GPA: 3
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
GMAT 1: 750 Q49 V42
Posts: 42,385
Kudos: 82,118
 [1]
Signature Verification Failed 03 Nov 2020, 16:07
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Thank you Mizar18 for sharing!
Sorry, I have hoped that they would fix the issue sooner!

Usually when mba.com goes down, I open up GMAT Club Tests for those who are taking the test very soon. While technically it is not down, it kind of is, so I am opening up GMAT Club tests for 24 hourts. This means everyone has unlimited usage of GMAT CLub tests for 24 hours. You can take unlimited tests, quizzes, etc and review everything BUT once the 24 hours is over, the tests will be locked and you won't be able to review without a subscription, so do your review until 3 PM Pacific on Wednesday (about the time GMAC should open their tests back up for review)

P.S. This is not supposed to be an evil catch.... FYI - getting a subscription is fairly easy. You can get it for 7 days by just following our YouTube channel or if you have purchased a course from one of the companies here. You can apply for a free 3-month access.
   1   2   3   4   
Moderator:
MBAACCOUNT2025
General GMAT Forum Moderator
444 posts