"你好,我是这的网管,电脑及网络方面有什么问题可以找我"这句话英语怎么说？

Hello, I am the network administrator, if you have any questions about computer and network, please feel free to contact me.

Hello, this is net administrator, in case you have any queries or problems about computors or network, contact me whensoever.

Hello, I'm the webmaster here. If you have any problems concerning computers or website, please contact me.