A lot of confusion and I can't seem to solve this issue

[snippsat]

can we add an exception or??

Yes can do that(pass it out so loop will not stop) and can also set shorter time so it goes faster on timeout errors.

import requests

with open('ip_lst1.txt') as f:
    for ip in f:
        try:
            ip = ip.strip()
            print(ip)
            response = requests.get(f"http://{ip}:9200/_cat/indices", timeout=2)
            print(response.text.strip())
        except Exception as error:
            #print(error)
            pass

Output:
118.31.106.59
green open .geoip_databases vtWge-U1SLefV6CuavYxCQ 1 0 40 40 37.7mb 37.7mb
118.31.106.59
green open .geoip_databases vtWge-U1SLefV6CuavYxCQ 1 0 40 40 37.7mb 37.7mb
124.221.82.115 # error still continue 
118.31.106.59
green open .geoip_databases vtWge-U1SLefV6CuavYxCQ 1 0 40 40 37.7mb 37.7mb
118.31.106.70 # error