Sporting Bengal United got the better of east London rivals Clapton in their Gordon Brasted Memorial Trophy tie on Saturday.
And Ilford also progressed after beating Southend Manor in a penalty shoot-out at Cricklefield Stadium, after their tie ended all square.
Tons were forced to stage the match at Redbridge's Oakside Stadium, with all three goals coming in the first half.
Bengal had the better of play and goals from Bobby Redwood and Curtley McIntosh put them on top at the break.
The second half was a largely scrappy contest, but Bengal protected their lead and now turn their attentions to the FA Vase and a home tie against Wormley Rovers at Mile End Stadium next weekend, while Clapton host Catholic United on Friday.
Ilford fell behind in the first minute of their match as Callum Fitzer found the net for Southend Manor.
But the Foxes got back on level terms with a quarter of an hour remaining thanks to Valter Simao and kept their cool from the spot to ensure their progress.
Ilford are due to host Enfield in the FA Vase next weekend, when local rivals Woodford Town return to action to entertain St Margaretsbury at Harlow Arena.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here