"...Does this mean my wireless card could be at fault?..." It could be the wireless hardware and/or the wireless software at fault. From within Control Panel --> Device Manager --> find the wireless adapter, remove the line or lines for that wireless. Restart. Give Windows time to rediscover the wireless adapter and to use the ethernet to go out and retrieve the drivers for it.
Also, using your ethernet, download, install, run both MiniToolBox and Piriform's Speccy, save all the logs, don't publish them [yet], others who are black belts in hardware [I am not one of them] may need to know exactly the manufacturer, model name & number of the wireless adapter. Reason for posting this idea, personal example: my two Acer Aspire laptops can have one of the two available differing wireless adapters installed.
Edited by RolandJS, 19 August 2016 - 06:44 AM.
"Take care of thy backups and thy restores shall take care of thee." -- Ben Franklin revisited.
Backup, backup, backup! -- Lady Fitzgerald (w7forums)
Clone or Image often! Backup... -- RockE (WSL)
"I heard Spock finally got colander!" "I believe the word is Kolinahr." "Oh."