Build 3.13.13 for revision 8 Fixed my issue with windows machines being unable to connect to router after a few days (security key wrong would be the essence of the error message)

Region : Argentina Model : TL-WR841ND Hardware Version : V8 Firmware Version : 3.13.33 build 130506 ISP : 3.13.33 Build 130506 Rel.48660n Hardware Version: WR841N v8 00000000 My problem (resolved)...