The 14.30 error is usually caused by having the 2.4GHz wireless mode set to g/n and not to b/g/n. If your router is set up to use the same SSID/network name for both 2.4GHz and 5GHz channels my guess would be that the working one is connecting to 5GHz and the non-working one is trying to connect to 2.4GHz. If all of this sounds like Greek to you, post the name of your Internet provider and the make and model number of your router.
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