Avaya R&D contacted the WeatherChannel team and the service was restored by the WeatherChannel.com team. The issue was re-tested and confirmed as service restored at a client.
As a FYI, we actually document in the 96x1 documentation that this service is not guaranteed. Refer to the attachment of this KB.
Should you/your client be currently facing such issue, you may
1) reboot phone and re-test
2) report into Avaya Services by providing with the following:
a) picture of error message seen on the phone's display
b) capture the issue in a sniffer/ethereal trace
c) collect phone's settings.txt file and DHCP option used onsite
No changes were made on Avaya Side. World app made the changes and as the 96x1 documentation that this service is not guaranteed please follow the below KB soln to remove it from phone display if it no longer works.
Communication Manager : How to disable the web application Icons on 9670G Phones
https://support.avaya.com/kb/index?page=content&id=SOLN224865
SOLN224865
There is an option to disable the World Clock Application , Weather Application &
Calculator
If you need more contacts to be favorite you can change the below settings on the
46xx settings file.
## WORLDCLOCKAPP specifies the application to display World Clock information.
## "" : World Clock application is disabled
## "default" : World Clock application is enabled (default)
SET WORLDCLOCKAPP ""
##
## WEATHERAPP specifies the application to display the weather information.
## Value Operation
## "" (null) Weather application is disabled
## "default" Weather application is enabled (default)
## This parameter is supported by:
## 9621 and 9641 H.323 R6.0 and later
## 9670 H.323 R2.0 and later
SET WEATHERAPP ""
##
## CALCSTAT specifies whether the Calculator application should be displayed.
## Valid Values
## 0 Don't display Calculator
## 1 Display Calculator
SET CALCSTAT 0