I had a cheap tp-Link LS108 g switch that I fitted about 18 months ago and just forgot about . Well it died for some reason and will not show any power . So put the connections back direct to the router and still kept having the drop out issues . new switch needed saw the below on e-bay and thought why not . My brother is head of the IT section for Merseyside Health and deals with networks and asking him he said Cisco is a very good make and they are super reliable and used by most business networks . So bought it and it arrived on Friday great packing and really in excellent condition . The difference in build quality from the TP-Link is very noticeable . Bigger unit good metal construction has its own power supply built in just a kettle plug lead . While it is a managed unit the company have reset the unit to factory default and just plugged it in and is working as it should . Network is now super stable no more wobblies and would recomend this as a very good value buy that will just work .
https://www.ebay.co.uk/itm/Cisco-WS-C2940-8TT-S-R4-Catalyst-2940-Switch-Managed-8-x-10-100-1-x-10/313330918786?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
https://www.ebay.co.uk/itm/Cisco-WS-C2940-8TT-S-R4-Catalyst-2940-Switch-Managed-8-x-10-100-1-x-10/313330918786?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649