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Ya I know. I miss the old UI too.
So let us know if you find the offending device.
Does this LT cause these messages if you disable the wireless on the LT and use the LAN wire connection? What OS Platform is loaded? What wireless and wired Mfr chip set does this LT have? Drivers up to date? Might do a reboot to Safe Mode with Networking and see if you notice any differences.Scan the LT for malware.