the problem with usb adapter is that loses wif signal from router when this happends i run the windows problem solver and results says that: the default gateway is not available... driver included...

thanks for your answer. its a pity cant recover original firmware for such a silly mistake. really the problem was caused by poor comunication between usb wifi adapter TL-WN823n V1 which for a while...

hi al, i hope somenone in this forum can help me after working ok during more than 3 years my modem router begin to work erratically i decided to update firmware to the newest one i made it by wifi...