Unable to manually assign IP address in DHCP server

[Jon D]

Trying to fix IP addresses assigned to devices on my network. Doing so at http://192.168.1.1/Advanced_DHCP_Content.asp

Once I select devices using the MAC address dropdown and try to add them then 'Apply', I can only see the 'Applying' spinner endlessly. Have actually left this going for an entire day - nothing happens. Also seems to log me out. Have tried alternate browsers, rebooting and flashing firmware to latest (non-beta) release. No effect.

Could there be some setting that is preventing me doing this?
Reason - so I can selectively & permanently specify the devices be routed via the OpenVPN client without fear of IP addresses changing.

Many thanks

 

[RMerlin]

Open your web browser console and look for any Javascript error.

 

[Jon D]

Open your web browser console and look for any Javascript error.

Thank for the fast reply! You are right - error screenshot attached. Unsure what they mean...? Any ideas?

 

[RMerlin]

Thank for the fast reply! You are right - error screenshot attached. Unsure what they mean...? Any ideas?

Failure to connect to the router. Either something you did caused the web server to crash, or you're running security software that's blocking access to it.

Check the System Log to see if there's any event from watchdog restarting httpd. If there is, then something caused the web server to crash.