Unable to access Web GUI

[B-C]

Unable to access any yealink devices from browser...
any browser..
Loads login page but login doesn't do anything -
No Error - Nothing
Haven't attempted to manage a phone via GUI in some time (maybe 6-7 months)
possibly since upgrading to Windows 10.

Windows 10
vipre AV Endpoint security -
also disabled active protection temporarily to see if that helped - No change
disabled AV 100% No change

loads login page fine
entering credentials does not work.

Attempted Chrome
Disabled Adblock Plus - no change
Disabled HTTPS Everywhere - No change

firefox
Disabled all addon's same issue

Edge - No addons
Same issue

IE - No addons
Same issue

attempted mobile android (chrome) as well just to test
same exact issue.

able to load interface so it is definitely working - just not sure what is causing the issue. all our T42G/T46G devices.

other devices like Grandstream GXP2140s working fine.
with addon's enabled

also - Why is forum not https? really LetsEncrypt isn't that difficult - I mean Free?!? - pretty easy to setup!

-
1 phone on newer firmware:
29.80.0.70 T42G - is working normally - all addons' enabled
checking cache and flushing to see if that helps

Nope - No change

[complex1]

Hi,

This could be caused by several things:
- Used invalid character(s) in the password
- Glitch during auto provision the phone(s)

How to solve?
- Please reboot the phone and try again
- Reset the phone to factory default and try again
- Upgrade the phone to the latest available V82 firmware
- Re-provision the phone and try again.

Hope this will help.

[B-C]

this is not one phone..
this is many phones

all default passwords

(09-15-2017 05:46 PM)complex1 Wrote:  Hi,

This could be caused by several things:
- Used invalid character(s) in the password
- Glitch during auto provision the phone(s)

How to solve?
- Please reboot the phone and try again
- Reset the phone to factory default and try again
- Upgrade the phone to the latest available V82 firmware
- Re-provision the phone and try again.

Hope this will help.

[yealinky]

I have only tried to reboot but it did not work. Holding off on reset.

I have the same problem with a T41. Upgraded to T41-36.82.0.20.rom from T41-36.81.0.110.rom and cannot access via GUI. Sometimes it will not connect. Sometimes it gives "Secure Connection Failed" error:
"An error occurred during a connection to xxx.xxx.xxx.xxx. You have received an invalid certificate. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number. Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem."

I have only tried to reboot but it did not work. Holding off on reset.