Roku stick remote broke now i cant connect stick to new wifi network with phone app

We got a new router recently and now we cant hook up our Roku stick to the new wifi network.  A few months ago the remote that came with the stick broke and we have been using the phone app up until now, but now that the phone app is on the new wifi network it wont connect with the stick anymore and I don't know how to connect the stick with the new wifi network without a remote/  We only have Roku TVs in the rest of the house and those remotes wont work with the stick and I can't use the old router bc it is broken beyond repair.