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New Member

RAS Connection speed

i have a 2600 8 async port router,when i connect using dialup its connecting at speed 19 k but using the same dialup when i connect to other ras router its connecting 30 k,i want it to connect that ras 2600 router at the same speed 30 i check both the configs are same

what do i need to do????

New Member

Re: RAS Connection speed

ensure your modems are not set to 19K. try hard setting them to 30K or more.

ensure your carrier PSTN is certified for modems not telephones.

New Member

Re: RAS Connection speed

Here is how my modems are set-up:

line 33 48

exec-timeout 0 0


modem InOut

modem autoconfigure discovery

no exec

transport preferred none

transport output none

flowcontrol hardware

I also upgraded my IOS from 12.2(11)T to 12.2(15)T, this updated the modem firaware... (show modem version)

Good Luck


Re: RAS Connection speed

NM-AMs in 2600 are very sensitive and needs proper grounding of chassis.

I have seen some similar issues in the past where modems will give low connect

speeds in the absence of proper grounding. Also make sure there is no RFI (Radio Frequence Interference) nearby. Please see the following for more on how to ground the chassis :