Charlton will not get any extra tickets for next month’s away game at Millwall.
However, there will be a live feed of the local derby at the Valley so fans can capture some of the tension and excitement.
The 2,017 tickets that are available for the April 3 fixture have been sold out. This number was reduced from 3,003 on security advice.
Charlton had appealed to Millwall to increase the figure but to no avail.
Meanwhile, Charlton face the prospect of facing a Reading side on Saturday on a high after making it through to the Wembley semi-finals of the FA Cup.
Royals manager Steve Clarke said: “Now it’s time to start picking up points in the league which is something I’ve been banging on about for weeks.
“Hopefully now the team has turned the corner, they realise what they have to do to get results and we can continue that on Saturday at Charlton which is a difficult game.”
The Addicks are on something of a bounce themselves winning six in eight under new head coach Guy Luzon.
But they are still caught mid-table and skipper Johnnie Jackson reckons it is “too late” for a realistic promotion charge.
On Twitter, Jackson said: “Results picking up at The Valley. Good run we are on, left it too late though!”