David Gallop has left the door ajar for fans who had been banned to prove their innocence.

Football Federation Australia is at risk of alienating A-League supporters after fans reacted with fury to comments by chief executive David Gallop on Tuesday.

The divide between the organisation and clubs' active supporters widened after the FFA's attempt to build bridges with fan groups left many insulted by the failure to acknowledge frustrations over security measures and banning notices.

Gallop called on fans to act positively and move on from recent issues, but the likelihood of a large-scale fan boycott across the league this weekend looms after many supporter groups flagged their intention to stay away from games on social media.

Western Sydney Wanderers' Red and Black Bloc said it would boycott Saturday night's home game against Brisbane Roar in its entirety.

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In a message posted on their Facebook page, The RBB wrote: "The FFA cannot use the fans as a marketing tool but then continually mistreat them, while asking them to help grow the game."

Fairfax understands Sydney FC's Cove and Melbourne Victory's North Terrace are also discussing boycotting this weekend's matches.

Gallop left the door ajar for fans who had been banned to prove their innocence by providing new evidence, but didn't budge from the "fundamentals" of the FFA's banning policy.

When asked what evidence a banned fan could present in order to have it overturned, Gallop would not specify – but reiterated the FFA's line that decisions to issue bans were not made lightly.

"You could prove that you didn't do it, if you could prove it wasn't you, then those are the obvious ones. It has to be very strong evidence because we've looked at these matters," he said.

The FFA is in the process of introducing an appeals process and may also bring in a system whereby banned spectators can have their sentences reduced through "community service".

A-League clubs and fans have been told for years that there was no avenue for bans to be appealed – a point reinforced by A-League chief Damien De Bohun in early November. Gallop said the option had always been available to fans, but that the FFA had failed to communicate that properly.

After a week in which thousands of supporters marched out of the stadium midway through games and many more voiced their anger at the FFA with protest banners, Gallop called on fans to "use your energy from now on in a positive way".

Sydney FC supporters were angered by Gallop's suggestion the FFA regularly meets supporter groups to discuss operations and listens to their concerns and suggestions.

Grant Muir, spokesman for Sydney FC supporter group Cove, accused the FFA of meeting Cove leaders rarely and only after numerous requests from supporters and club chief executive Tony Pignata. One member was understood to have walked into the FFA office last week to approach officials directly.

"His comment about meeting with fans 'all the time' was an outrageous lie," Muir said. "I challenge him to show three meetings between fan groups and the FFA in the last calendar year that were organised at the instigation of the FFA.

"He's driving even the most moderate of supporter groups down a path of direct protest, leaving us no choice. No one will give them the benefit of the doubt now."

An FFA spokesperson disagreed with Muir's accusations.