I purchased a Seiki SE32HY19t flat screen yesterday it worked fine and all of a sudden there is not a network connection (wireless) but I do have access to the internet on my laptop

These TV's are such a POS, avoid this brand at all possible extents. no support, and useless for anything other than a dust collector. thanks seiki for nothing.

I purchased the SE32HY19T for my daughter's room 2 weeks ago and we could set up the wireless fine (despite having a WEP-2 we learned you have to choose 'MIXED' on the tv and then it accepted our wifi password). Wifi is strong in her room, my issue is every time we turn the tv off and back on again, we have to reset the wifi. I wish there was a way to 'save' it. Any thoughts would be great. I sent an email to Seiki but no response, no surprise.

It isn't unusual for flatscreen tv to lose the wireless connection. Go through the tv's wireless setup instructions again. If it keeps losing the connection, the tv is probably near the edge of the wireless signal's ability. If that is the case, moving the tv closer to the router, or getting a better router, are really your only choices. This is assuming that the wireless in your tv is working properly.

Having said that for generic flat screen tvs, one might point out that the Seiki SE32 series is NOT "smart" and does NOT support DLNA so outside of firmware updates to the tv itself I'm not sure what else one might do with it. You could plug in your laptop via one of the HDMI ports and "surf on the big screen" as it were. If one were to check the Amazon site for this model, one would find it is a dog in this department.

If I may make a suggestion, the Visio E241i-B1 may only be 24" but it works like a charm as both a 1080P tv and a computer monitor. I bought one to temp as a monitor while changing computers and it worked mucho caliente! And it updated itself over the wireless (which is never dropped even on my less-than-ideal DSL line). The kicker? On Amazon, it is cheaper than the Seiki. ( http://www.amazon.com/VIZIO-E241i-B1-24-Inch-1080p-Smart/dp/B00HZI0Y0Q/ )

If you are really wanting a 32" I would recommend the Visio E320i-B2 ( http://www.amazon.com/VIZIO-E320i-B2-32-Inch-720p-Smart/dp/B004HG056M/ ). Same family as the 24" just bigger but only 720P (like the Seiki). But ... it's $250. As usual, you get what you pay for.

Read the owners manual from the begining.
Reset the wireless connection at Seiki.seach it again the wireless statios and add it.