Bit of a strange one. I'm finding on some devices the wifi connection lost, though still there on other devices. As an example an old laptop has lost connection twice, but my iphone has never lost connection. The solution is a switch on-off of the router, but the unpredicability is a bit annoying. Just wondering if anyone else has experienced that at all. This started about 4 weeks ago, and as a rule, we don't touch the router.
have you checked the driver for the old laptop wifi card is up to date from manufacturer and not rely on windows update
have you tried changing wifi mode from 1 to 2 or 3
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings 'Thumbs up' on left hand side. If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.