|Presumably it did work previously?|
Have you gone into the router config/mangement areas to see if wifi has somehow been turned off?
is where you go to access the management etc. and the login/password is admin/ admin
This is where to find/download the manual:
Page 27 is the start of the configuration details - so after a quick browse of the earlier pages… perhaps work your way through from there?
When you do get it working again - pay close heed/attention the issue of security. At the least set a password to restrict access to wifi; and ideally change it from whatever the default already suggested (in the manual?) may be. Keep a note of the password - in more than one place. I often email it to myself (in a rather vague way…) so as to have it saved somewhere off my systems entirely; also make a hard copy and stored safe (where I can remember and find it - with other similar "stuff"…); and also as a file on some external storage device(s). That way one has it if the need arises. Pasting it on the base of the modem is often OK too - as long as you and your friends/family are the only folks likely to ever go near the router?
message edited by trvlr