Dover Athletic have lost for the fifth time in six games.
They were beaten 3-1 by Weston-super-Mare and now lie eight points behind leaders Newport County.
Elsewhere in Blue Square South, Jamie Day started life as Welling manager with a 3-0 win over FA Cup giant-killers Staines Town.
Day told BBC Radio Kent: "The lads worked really hard. It's just a start but we need to continue the way we played today."
On a day where a number of matches fell foul to the weather, Tonbridge Angels were Kent's only winners in the Ryman League.
Liam Harwood scored with his first touch for the club in their 3-2 victory at Kingstonian, their fourth in a row.
Manager Tommy Warrilow said: "With all the games being called off you can imagine what the conditions were like. It was the wind.
"We took advantage of that in the first half to go 3-1 up and in the second half we got it down and played a bit."
Ramsgate were the only Kent side to avoid defeat in Ryman South as they drew but Chatham and Whitstable lost.
Kent are now down to their last two clubs in the FA Vase. Herne Bay and Erith and Belvedere lost so Faversham Town and Beckenham Town fly the county flag.
Saturday, 14 November (postponements omitted)
Blue Square South Welling United 3-0 Staines Town Weston-super-Mare 3-1 Dover Athletic
Ryman Premier Division Harrow 2-1 Maidstone Kingstonian 2-3 Tonbridge
Ryman Division One South Chatham 1-3 Corinthian Casuals Met Police 1-1 Ramsgate Whitstable 0-1 Walton Casuals
Ryman Division One North Maldon 3-3 Thamesmead Town
FA Vase Second Round Herne Bay 0-1 Flackwell Heath Witney United 5-1 Erith and Belvedere
Bulmers Cider Kent League Erith Town 4-2 Fisher Sevenoaks 2-1 Holmesdale Tunbridge Wells 1-1 Lordswood
Vandanel Kent County League Premier Division Hollands & Blair 0-1 Stansfeld Rusthall 1-0 Cray Valley
Division Two Platt United 1-1 Tenterden Town
Bill Manklow Inter Regional Cup Round Two Metrogas 5-0 Bridon Ropes Sheerness East 3-4 Premier Snodland 2-3 Kennington Sutton Athletic 1-2 Lewisham Borough University of Kent 6-2 AFC Sheppey Woodstock Park 0-2 Larkfield & New Hythe
Sunday, 15 November
Blue Square South Newport County 2-0 Bromley
Tuesday, 17 November
Ryman Premier League Maidstone United v Sutton United Tonbridge Angels v Hendon Waltham Abbey v Margate Wealdstone v Cray Wanderers
Ryman League Division One South Folkestone Invicta v Metropolitan Police Sittingbourne v Dulwich Hamlet Whyteleafe v Chatham Town
Ryman League Division One North Redbridge v VCD Athletic Thamesmead Town v Enfield Town
FA Vase Round Two Badshot Lea v Faversham Beckenham Town v Carterton
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