max # of BRI dialers on 801/803??

[ewhizz]

I have a config that works fine for simple dial-out via ISDN from an 803 to a remote 801.
When I extend the network to allow dial-out to 20 remote 801s the config fails to save into (central) 803 router memory when loaded from Config-maker.
Is this likely to be a memory problem?
Any ideas?
thanks
Jeremy

 

[ewhizz]

I have now tried upgrading flash by 4Mb (12Mb total): no luck
Also, DRAM upgrade (to 12Mb) doesn't work - it even kill the TinyOS after the initial dialogue!
HELP!