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Internet Password Field Length - Router

Last response: in Windows 7
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May 23, 2012 7:58:42 AM

Since installing Winblows :pfff:  Home Premium 7, I can no longer use my Router Admin password, it is 17 chars. in length.
Does this version of windows limit password fields by default ? Is a required service disabled ?
Note there is no Local Security Policy in this version. :heink: 
a b 8 Security
a b $ Windows 7
May 23, 2012 8:09:30 AM

Have you tried another web browser to work on your router? Maybe Firefox or Chrome?

Win7 should not care how long a password you have or what characters are in the password.
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May 23, 2012 8:29:54 AM

I use IE and Seamonkey. I keep IE to double check for troubleshooting purposes. In this case same results. I am getting Firefox 12 (non-beta) just to test browser number 3. I meant Windows 7 was a change of OS, installed clean by vendor. Password was set in XP. Other possibility, cell phone connected to WIFI is a vulnerability worth exploring ?
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:32:15 AM

I'm thinking a reset of the router and going back and setting a new password.

I don't believe your WiFi router would have been exploited by a connected phone.
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May 23, 2012 8:32:30 AM

Same for Firefox, field cuts off at 15 chars. with room to go, my pwd. is 17 chars.
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May 23, 2012 8:34:27 AM

Will have to fully test tomorrow from XP PC inaccessible now, will update this when I know better, if XP is the same, will have to reset router and reload settings. Thanks.
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:34:47 AM

I just checked a few password fields. And I'm getting the same 15 character limit ATM too.
Lets see what google can find.
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:46:31 AM

And found a few more sites (including THG) that use a password field longer than 15 characters.
So I'm thinking it's a remote host (in your case your router) imposed limit.
It could be that you thought the password was 17 characters but only the 15 were used.

I had always thought that the maximum limit for passwords was 127 characters.
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May 23, 2012 8:49:49 AM

I always typed 17 from XP and my brother connected on 17 from phone, but my Windows phone did not connect...
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May 23, 2012 8:50:44 AM

Is the limit imposed by WPA/2 or AES ?
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:52:17 AM

I honestly don't know. I would guess it would be your Router, not WPA/2 or AES limits.
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May 23, 2012 8:55:08 AM

I have not seen any sections on router mentioning password length but it is a D-Link DIR-615. Why would it work in XP and be rejected in Win7 if it is a Router limitation ?
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:56:36 AM

Ensure you've entered a complete WEP or WPA key.

Some brands of wireless routers automatically generate a simple text passphrase from the WEP key. The Kindle is not compatible with passphrases. You must enter the complete WEP key, which contain letters a-f and numbers 0-9. WEP key lengths are as follows:

64-bit WEP keys -- 10 digits
128-bit WEP keys -- 26 digits
256-bit WEP keys -- 58 digits

WPA keys have a minimum of 8 characters and a maximum of 63 characters, and are case sensitive.
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a b 8 Security
a b $ Windows 7
May 23, 2012 8:57:29 AM

What Im thinking is it captured only the first 15 characters of the password.
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May 23, 2012 9:01:05 AM

I used WPA key and entry contains letters, numbers and symbols, if first 15, still why is password rejected in windows 7 ? I do not own a kindle, signature is my new PC. Windows Phone is an HTC HD2, not worried about it.
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a b 8 Security
a b $ Windows 7
May 23, 2012 9:03:53 AM

That bit about the Kindle was just copy/pasted from a website mentioning password lengths. It was the first time I'd seen any mention of password max length for routers.

OK.. Windows 7 didn't reject the password. Only the router would do that.
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May 23, 2012 9:03:58 AM

Inputing only 15 chars. still returns invalid password. It maybe a hack attempt successful, even though I keep SSID invisible.
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May 23, 2012 9:04:31 AM

I meant FROM windows 7.
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May 23, 2012 9:08:11 AM

Definitely length limit has changed with OS, there is room in text box but unusable, something in win7 making fields act differently.
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a b 8 Security
a b $ Windows 7
May 23, 2012 9:12:35 AM

I just changed my THG forum password to 21 characters.
Definitely not a 15 character limit set in Windows 7.
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May 23, 2012 9:17:10 AM

I need the logic, if router set 15, why would XP display 17+ fields ? Why is password passing in XP and failing in Win7 ? Right now I am leaning towards router hack, will know more tomorrow. Thanks for your help.
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a b 8 Security
a b $ Windows 7
May 23, 2012 9:21:50 AM

Logic is - limit is set by the remote host you're working on. That HTML page you type the password in - that's from the router. Win7/IE didn't make that page up for you - the router supplied it.

Check your THG password log in length for a password change.
Just as an example of a limit not set to 15 characters but at the length the host site sets for the field.
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May 23, 2012 9:24:24 AM

I must be tired, mixed up passwords of router admin. with wireless...
Problem solved - So shoot me now !
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Best solution

a b 8 Security
a b $ Windows 7
May 23, 2012 9:25:10 AM

You're not the first (not by a long shot) and won't be the last ever to do that.
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May 23, 2012 9:28:26 AM

Best answer selected by Cyberat_88.
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