I have a 2801 router. It had a preconfigured SDM 2.3 I believe on it. I thought I would upgrade it "Big Mistake" and I tried doing it through the SDM interface. Everything was looking good, it downloaded an application, ran it, connected to the router and removed the old sdm, however when copying the new sdm to the router, it failed, and I haven't been able to load it back up. I was still able to install the SDM client on my pc, and can connect through it like that, but is there a way for me to either install, or retrieve the old sdm on the router itself?
Any help is appreciated.