26.03.2016, 21:37
Try restarting your router, if it still doesn't work, then try reinstalling SA-MP.
Click the link below for SA-MP Client download;
http://files.sa-mp.com/sa-mp-0.3.7-install.exe
Click the link below for SA-MP Client download;
http://files.sa-mp.com/sa-mp-0.3.7-install.exe