And your getting internet ok?
Is the PC your using to connect to the router set up for automatic Ip addressing or have you set up a static IP address on the PC? Preferred is automatic.
Reboot the PC to be sure.
Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.
Oh yeah. EVERYTHING's working perfectly except for getting to the router UI. Makes no sense. Like I said, my IP for the router is fine, i.e., I can ping it and get to it, but the page is NOT there so you get the standard "page not found" HTTP 404 error.
Yes, the 825 is set up for DHCP. I do reserve specific IPs on the router like I did with my 655, but my PCs are set up to use DHCP to get their reserved addresses, i.e., no static IPs.
BTW, I had already done everything you suggested below. There is one thing that I didn't do since this popped up and that's unplugging the router and replugging it back in to "reset" it. THIS did work. After plugging the router back in and letting it go through its boot process, I was able to get back in. What the heck? Have you heard of this happening with anyone else?
It'll be interesting to see if it just happens again during the day today or over the next few days. Like I said, everything was working fine when I was able to access the UI and then I came back later to do a little more configuration and was not able to get to it. Not a good sign.
Thanks for your help FurryNutz.