@digital | epitome As I see on TP-LINK website, the old firmware is 131009. Why yours is 131218 before upgrade? Any screenshots? Yours are EU version or US version indeed?

msravi wrote I have the same problem. It's a v6 router purchased in Aug 2014. I updated the firmware to the latest (140422) firmware, but that didn't help. The freeze occurrence is independent of the...

v1.2 is different from v1. For v1.2: 3 * 5GHz 5dBi detachable antennas (RP-SMA) 3 * 2.4GHz internal antennas

That's the latest version indeed. I don't use applications you mentioned. You may report it to TP-LINK and they may test or give you some advice. http://www.tp-link.com/en/Support/contact/

Report it here to confirm with TP-LINK technicians. http://www.tp-link.com/en/Support/contact/

If i were you, i will uninstall utility on your PC and install driver only. And then, use windows built-in utility to connect to a wireless network.