why web portal\web authentication page is not appearing on screen of users laptop\mobile?

usman

hi ,

we have using Zyxel UAG5100 device, i am facing an issue every after 4 days web portal\web authentication page is not appearing on screen of user machine\device, then i need to restart device every time to work

kindly help me to solve this issue

Zyxel_James

It seems the httpd daemon being dead after running for 4 days.
Normally, I would suggest the operation below to avoid this issue happening.

1. Limit HTTP connection session per IP
2. Bypass some common domain in web auth
3. Disable "force user authentication"

However, it only slows down the issue happening, not actually fix it.
I would suggest upgrading to a newer model( such as USGFLEX series) since UAG5100 has already end of support since 2020-12-31

https://webservice.zyxel.com/end-of-life

smb_corp_user

What kind of services or features are running on this device?

What is the average workload or CPU load?

Is it running any form of VPN with IPSEC logging?

Does it run any other services not affected by this issue?

usman

this device used for wifi connecting to inhouse guest sometimes that web page doesnt appear then i need to restart the services or machine uag5100

no other services are running on it

cpu usage 92%

no vpn or ipsec are using

usman

whenever user try to login back to access internet the web portal is not appearing on screen instead of displaying no internet ,is this systems logs issue are some configuration issue?

after restarting the Zyxel UAG5100 gateway machine, then only web page appearing on screen

kindly let me know

smb_corp_user

OK, thank you for the extra details. Looking forward to suggestions from someone knowing this device better than me.

Have you checked if it is possible to update the firmware on your device?

usman

tried updating firmware ,but still same

may be its system log issue?

Zyxel_James

@usman

Does it happen to all accounts or specific accounts?
What's the reauthentication time setting for the accounts?

usman

for all exiting accounts and when try to use new device for connection the webportal not appearing instead it displaying no internet

usman

when existing accounts when they trying to renew or connect back the web portal not appearing

i need to restart the whole gateway Zyxel UAG5100

after restarting it started to appear webportal

Zyxel_James

It seems the httpd daemon being dead after running for 4 days.
Normally, I would suggest the operation below to avoid this issue happening.

1. Limit HTTP connection session per IP
2. Bypass some common domain in web auth
3. Disable "force user authentication"

However, it only slows down the issue happening, not actually fix it.
I would suggest upgrading to a newer model( such as USGFLEX series) since UAG5100 has already end of support since 2020-12-31

https://webservice.zyxel.com/end-of-life

smb_corp_user

Aha. Now I understand the problem. HTTP requests flooding the device over time, making it unable to operate for more than a few days, because too many HTTP packets from the combined amount of devices being used. Good suggestion to upgrade to a supported device.