yes , you can play on the net , i recomend you go through and reinstall your steam/hl/esf & the patches , or tweak your net connection/browser settings& or system settings , if all else fails , time to reformat the dam sun of a gun , and if that doesn't work , the dumpster with it (i could imagine your annoyence at your pc , "you stupiud machine , to hell with you" , lo , only playying
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