None of me IP Filters are operating! Help!!

Hello,

I am using the Solwise model SAR110 router. I know my router is a bit
old router.

Lately I have been trying to connect to my router from outside
computers and I can't seem to for some reason.

I did a bit of nosing around in the manual and found a section on IP
Filters. The manual says that by default, port 80 should be set to
"Accept".

I compared that to what was on my SAR110 and found all of the IP
Filter rules are not working, that is, they show up as red on the
status.

Further, when I click each of them it says the "Admin. Status" is
Green, i.e. it's set-up to go ok, and everything else that's listed
seems normal (*) but it says the "Oper. Status" is red.

I can't figure out why this has happened. It was all working before.

I've tried rebooting (**) and this has not made any difference.

What has happened? Time for a new router or what?

Help!

TIA
Pablo.

* e.g. Rule Action = "Accept", Blacklist Status = "Disable"..
** I set the "Reboot" mode to "Default Configuration" when I did the
Reboot.