The IP address you've quoted 192.168.11 is missing a final block, so I'd presume you might need to use 192.168.1.1 maybe? - it should have 4 blocks of numbers not 3.
Having said that, you shouldn't need to connect to any IP address to use a WiFi hotspot, what is it you're trying to do?
If that's not a typo as @bristolian suggests, try 192.168.8.1 or 192.168.0.1.
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