How to access Cisco 2500 series admin GUI interface with known IP address when Firefox/Chrome state connection cannot be reached?

Question

I know the username and password of my Cisco 2500 series wireless & ethernet controller and its IP address, but when I enter the IP address into a web browser (Firefox and Chrome) it states the location cannot be reached / connection cannot be established. The admin GUI showed up when I connected the router/controller to my laptop for the first time and I set up the admin username/password and IP address that way, but when I hit Enter/exited the GUI it sort of froze and didn't seem to close properly, so I am worried something may be broken now.

My laptop uses Ubuntu 18.04 linux and I have it connected via ethernet to the router, as well as a console cable from the laptop's USB to the router's Console port. I am able to communicate with the router through the linux software called "minicom" (see https://help.ubuntu.com/community/Minicom & https://help.ubuntu.com/community/CiscoConsole) and the enable command works, the debug command works, the config command works, but I am new to programming Cisco routers so I don't know what series of commands I need to "fix it".

Here is the system output:

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.

Product Name..................................... Cisco Controller

Product Version.................................. 8.0.140.0

Bootloader Version............................... 1.0.20

Field Recovery Image Version..................... 7.6.101.1

Firmware Version................................. PIC 16.0

Build Type....................................... DATA + WPS

System Name...................................... Chassis

System Location..................................

System Contact...................................

System ObjectID.................................. 1.3.6.1.4.1.9.1.1279

IP Address....................................... 10.0.0.10

IPv6 Address..................................... ::

Last Reset....................................... Power on reset

System Up Time................................... 0 days 0 hrs 44 mins 2 secs

System Timezone Location......................... (GMT -8:00) Pacific Time (US and Canada)

System Stats Realtime Interval................... 5

System Stats Normal Interval..................... 180

--More-- or (q)uit

Configured Country............................... US - United States

Operating Environment............................ Commercial (0 to 40 C)

Internal Temp Alarm Limits....................... 0 to 65 C

Internal Temperature............................. +31 C

External Temperature............................. +34 C

Fan Status....................................... 4800 rpm

State of 802.11b Network......................... Enabled

State of 802.11a Network......................... Enabled

Number of WLANs.................................. 1

Number of Active Clients......................... 0

Burned-in MAC Address............................ B8:38:61:40:56:80

Maximum number of APs supported.................. 75

System Nas-Id....................................

WLC MIC Certificate Types........................ SHA1

I apologize if this is an elementary problem or the problem is not stated correctly, but this is my first time on NE.SX.com so please do excuse me. Thank you for your assistance in advance.

Answer 1

In laptop network adapter setting use default gateway address as router management ip and subnet mask and use ip address from same subnet .example

Ip address :10.0.0.11 Mask 255.255.255.0 Gateway 10.0.0.10 use this network adapter setting and try you must able to access gui if cisco device

Answer 2

And enter 10.0.0.10 address in browser