|> The power strip could be partially bad if the supressor has done it's job.|
Power strips that are grossly undersized fail. Protection already inside electronics is often more robust. A transient too tiny to harm an appliance can destroy the grossly undersized protector. Then the naive to recommend that protector and buy more.
Grossly undersized protectors fail by disconnecting the protector parts as fast as possible. Leaves the appliance connected to that transient. Otherwise, the grossly undersized power strip could create a house fire. Another rare but too common problem with grossly undersized power strip protectors ... that fail during any surge.
Any protector that fails did no protection … other than to disconnect so fast as to not cause a house fire. Informed consumers properly earth one protector (for about $1 per protected appliance) so that even direct lightning strikes damage no appliances or the protector. Properly sized protectors are not profit centers that fail to promote sales.
All computers contain internal protection features. One protective 'lockout' is cleared by disconnecting its power cord for two seconds. That lockout feature is sometimes triggered when power restoration occurs too slowly or in low voltage bursts.